Complete Diagnosis & Tests Technical Manual with electrical wiring diagrams for John Deere 204L and 304L Compact 4WD Loader, with workshop information to maintain, diagnose, and rebuild like professional mechanics.

John Deere 204L and 304L Compact 4WD Loader workshop Diagnosis & Tests technical manual includes:
* Numbered table of contents easy to use so that you can find the information you need fast.
* Detailed sub-steps expand on repair procedure information
* Numbered instructions guide you through every repair procedure step by step.
* Troubleshooting and electrical service procedures are combined with detailed wiring diagrams for ease of use.
* Notes, cautions and warnings throughout each chapter pinpoint critical information.
* Bold figure number help you quickly match illustrations with instructions.
* Detailed illustrations, drawings and photos guide you through every procedure.
* Enlarged inset helps you identify and examine parts in detail.

TM14271X19 - John Deere 204L and 304L Compact 4WD Loader Operation and Test Technical Manual.pdf
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PRODUCT DETAILS:
Total Pages: 1,021 pages
File Format: PDF (bookmarked, ToC, Searchable, Printable)
Category: Operation and Test
Language: English French
John Deere - Compact Loader - 1LU204LX_ _B040073—
Published on 2020/02/07

TABLE OF CONTENTS
Section 9000: General Information................25
  Group 01: Safety Information................25
    Recognize Safety Information................28
    Follow Safety Instructions................29
    Operate Only If Qualified................30
    Wear Protective Equipment................31
    Protect Against Noise................32
    Avoid Unauthorized Machine Modifications................33
    Inspect Machine................34
    Stay Clear of Moving Parts................35
    Avoid High-Pressure Fluids................36
    Avoid High-Pressure Oils................37
    Work In Ventilated Area................38
    Avoid Static Electricity Risk When Refueling................39
    High Debris Applications................41
    Prevent Fires................42
    In Case of Machine Fire................43
    Prevent Battery Explosions................44
    Handle Chemical Products Safely................45
    Handle Starting Fluid Safely................46
    Decommissioning — Proper Recycling and Disposal of Fluids and Components................47
    Exhaust Filter Ash Handling and Disposal................48
    Prepare for Emergencies................49
    Clean Debris from Machine................50
    Add Cab Guarding for Special Uses................51
    Use Steps and Handholds Correctly................52
    Start Only From Operator's Seat................53
    Use and Maintain Seat Belt................54
    Prevent Unintended Machine Movement................55
    Avoid Work Site Hazards................56
    Use Special Care When Operating Loader................58
    Keep Riders Off Machine................59
    Avoid Backover Accidents................60
    Avoid Machine Tip Over................61
    Avoid Power Lines................63
    Operating on Slopes................64
    Operating or Traveling On Public Roads................65
    Inspect and Maintain ROPS................66
    Travel Safely................67
    Prevent Acid Burns................68
    Add and Operate Attachments Safely................70
    Park and Prepare for Service Safely................71
    Service Machines Safely................72
    Service Cooling System Safely................73
    Remove Paint Before Welding or Heating................74
    Make Welding Repairs Safely................75
    Drive Metal Pins Safely................76
    Service Tires Safely................77
    Use Proper Lifting Equipment................78
    Clean Exhaust Filter Safely................79
Section 9001: Diagnostic Trouble Codes (DTC)................82
  Group 10: Engine Control Unit (ECU) Diagnostic Trouble Codes................93
    Engine Control Unit (ECU) Diagnostic Trouble Codes................93
    000028.00 - Accelerator Sensor 3 Error (Foot Pedal in Open Position) (P1126) (0001C-00)................82
    000028.01 - Accelerator Sensor 3 Error (Foot Pedal in Closed Position) (P1125) (0001C-01)................82
    000028.03 - Accelerator Sensor 2 Error (High Voltage) (P0223) (0001C-03)................82
    000028.04 - Accelerator Sensor 2 Error (Low Voltage) (P0222) (0001C-04)................82
    000029.03 - Accelerator Sensor 3 Error (High Voltage) (P0228) (0001D-03)................82
    000029.04 - Accelerator Sensor 3 Error (Low Voltage) (P0227) (0001D-04)................82
    000029.08 - Pulse Sensor Error (Pulse Communication) (P1227) (0001D-08)................82
    000051.03 - Intake Throttle Opening Sensor Fault (High Voltage) (P02E9) (00033-03)................82
    000051.04 - Intake Throttle Opening Sensor Fault (Low Voltage) (P02E8) (00033-04)................82
    000091.03 - Acceleration Sensor 1 Fault (High Voltage) (P0123) (0005B-03)................82
    000091.04 - Acceleration Sensor 1 Fault (Low Voltage) (P0122) (0005B-04)................82
    000100.01 - Low Oil Pressure Fault Alarm (P1198) (00064-01)................82
    000100.04 - Oil Pressure Switch Open Circuit (P1192) (00064-04)................82
    000102.03 - Exhaust Gas Recirculation (EGR) Low Pressure Side Sensor Fault (High Voltage) (P0238) (00066-03)................82
    000102.04 - Exhaust Gas Recirculation (EGR) Low Pressure Side Sensor Fault (Low Voltage) (P0237) (00066-04)................82
    000102.10 - Exhaust Gas Recirculation (EGR) Low Pressure Side Sensor Fault (Detected Value Error) (P1673) (00066-0A)................82
    000102.13 - Exhaust Gas Recirculation (EGR) Low Pressure Side Sensor (Abnormal Learning Value) (P0236) (00066-0D)................82
    000105.03 - Intake Air Temperature Sensor Fault (High Voltage) (P040D) (00069-03)................82
    000105.04 - Intake Air Temperature Sensor Fault (Low Voltage) (P040C) (00069-04)................82
    000105.10 - Intake Air Temperature Sensor Fault (Detected Value Error) (P1676) (00069-0A)................82
    000108.03 - Atmospheric Pressure Sensor Fault (High Voltage) (P2229) (0006C-03)................82
    000108.04 - Atmospheric Pressure Sensor Fault (Low Voltage) (P2228) (0006C-04)................82
    000108.10 - Atmospheric Pressure Sensor Characteristic Fault (P1231) (0006C-0A)................82
    000110.00 - Cooling Water Temperature Sensor Temperature Abnormal High (Overheat) (P0217) (0006E-00)................82
    000110.03 - Cooling Water Temperature Sensor Fault (High Voltage) (P0118) (0006E-03)................82
    000110.04 - Cooling Water Temperature Sensor Fault (Low Voltage) (P0117) (0006E-04)................82
    000110.10 - Cooling Water Temperature Sensor Fault (Detected Value Error) (P1674) (0006E-0A)................82
    000157.00 - Actual Rail Pressure Rise Error (P0088) (0009D-00)................83
    000157.03 - Rail Pressure Sensor Fault (High Voltage) (P0193) (0009D-03)................83
    000157.04 - Rail Pressure Sensor Fault (Low Voltage) (P0192) (0009D-04)................83
    000157.15 - Rail Pressure Deviation Error During the Actual Rail Pressure Rise (P0093) (0009D-0F)................83
    000157.16 - Pressure Limit Valve (PLV) Open Valve (P000F) (0009D-10)................83
    000157.18 - Rail Pressure Deviation Error During the Actual Rail Pressure Drop (P0094) (0009D-12)................83
    000167.01 - Charge Alarm (P1568) (000A7-01)................83
    000167.05 - Charge Switch Open Circuit (P1562) (000A7-05)................83
    000172.03 - New Air Temperature Sensor Fault (High Voltage) (P0113) (000AC-03)................83
    000172.04 - New Air Temperature Sensor Fault (Low Voltage) (P0112) (000AC-04)................83
    000173.03 - Exhaust Air Temperature Sensor Fault (High Voltage) (P0546) (000AD-03)................83
    000173.04 - Exhaust Air Temperature Sensor Fault (Low Voltage) (P0545) (000AD-04)................83
    000173.10 - Exhaust Air Temperature Sensor Fault (Detected Value Error) (P1677) (000AD-0A)................83
    000174.00 - Fuel Temperature Sensor Temperature Abnormal High (P0168) (000AE-00)................83
    000174.03 - Fuel Temperature Sensor Fault (High Voltage) (P0183) (000AE-03)................83
    000174.04 - Fuel Temperature Sensor Fault (Low Voltage) (P0182) (000AE-04)................83
    000190.16 - Overspeed (P0219) (000BE-16)................83
    000237.13 - VI (CAN Message) Reception Data Fault (U3002) (000ED-0D)................83
    000237.31 - VI (CAN Message) Reception Time Out (U0168) (000ED-1F)................83
    000412.03 - Exhaust Gas Recirculation (EGR) Gas Temperature Sensor Fault (High Voltage) (P041D) (0019C-03)................83
    000412.04 - Exhaust Gas Recirculation (EGR) Gas Temperature Sensor Fault (Low Voltage) (P041C) (0019C-04)................83
    000412.10 - Exhaust Gas Recirculation (EGR) Gas Temperature Sensor Fault (Detected Value Error) (P1675) (0019C-0A)................83
    000630.12 - EEPROM Memory Deletion Error (P0601) (00276-0C)................83
    000633.03 - High Pressure Pump Drive Circuit (High Side VB Short Circuit) (P0629) (00279-03)................83
    000633.05 - High Pressure Pump Drive Circuit (Open Circuit) (P0627) (00279-05)................83
    000633.06 - High Pressure Pump Drive Circuit (High Side Ground Short Circuit) (P1642) (00279-06)................83
    000651.03 - Injector 1 Short Circuit (4TNV) (P1271) (0028B-03)................83
    000651.05 - Injector 1 Open Circuit (Inherent Location of the Injector) (4TNV) (P0204) (0028B-05)................83
    000651.06 - Injector 1 Coil Short Circuit (4TNV) (P0271) (0028B-06)................83
    000652.03 - Injector 4 Short Circuit (P1268) (0028C-03)................83
    000652.05 - Injector 4 Open Circuit (Inherent Location of the Injector) (P0203) (0028C-05)................84
    000652.06 - Injector 4 Coil Short Circuit (P0268) (0028C-06)................84
    000653.03 - Injector 2 Short Circuit (P1265) (0028D-03)................84
    000653.05 - Injector 2 Open Circuit (Inherent Location of the Injector) (P0202) (0028D-05)................84
    000653.06 - Injector 2 Coil Short Circuit (P0265) (0028D-06)................84
    000654.03 - Injector 3 Short Circuit (P1262) (0028E-03)................84
    000654.05 - Injector 3 Open Circuit (Inherent Location of the Injector) (P0201) (0028E-05)................84
    000654.06 - Injector 3 Coil Short Circuit (P0262) (0028E-06)................84
    001209.03 - Exhaust Gas Recirculation (EGR) High Pressure Side Sensor Fault (High Voltage) (P0473) (004B9-03)................84
    001209.04 - Exhaust Gas Recirculation (EGR) High Pressure Side Sensor Fault (Low Voltage) (P0472) (004B9-04)................84
    001209.10 - Exhaust Gas Recirculation (EGR) High Pressure Side Sensor Fault (Detected Value Error) (P1679) (004B9-0A)................84
    001209.13 - Exhaust Gas Recirculation (EGR) High Pressure Side Sensor (Abnormal Learning Value) (P0471) (004B9-0D)................84
    001485.02 - Engine Start Relay (K02) Early Opening (P068A) (005CD-02)................84
    001485.07 - Engine Start Relay (K02) Contact Stuck (P068B) (005CD-07)................84
    002791.00 - Exhaust Gas Recirculation (EGR) High Voltage Malfunction (P0404) (00AE7-00)................84
    002791.01 - Exhaust Gas Recirculation (EGR) Low Voltage Malfunction (P1404) (00AE7-01)................84
    002791.07 - Exhaust Gas Recirculation (EGR) Feedback Malfunction (P1409) (00AE7-07)................84
    002791.09 - Exhaust Gas Recirculation (EGR) Data Error (U0401) (00AE7-09)................84
    002791.12 - Open Circuit Between the Exhaust Gas Recirculation (EGR) Motor Coils (P0403) (00AE7-0C)................84
    002797.06 - Injector Drive Circuit (Bank1) Short Circuit (P1146) (00AED-06)................84
    002798.06 - Injector Drive Circuit (Bank2) Short Circuit (P1149) (00AEE-06)................84
    002950.03 - Power Short Circuit of Throttle Valve Drive H Bridge Output 1 (P1658) (00B86-03)................84
    002950.04 - Ground Short Circuit of Throttle Valve Drive H Bridge Output 1 (P1659) (00B86-04)................84
    002950.05 - No Load of Throttle Valve Drive H Bridge Circuit (P0660) (00B86-05)................84
    002950.06 - Overload On The Drive H Bridge Circuit of Throttle Valve (P1660) (00B86-06)................84
    002951.03 - VB Power Short Circuit of Throttle Valve Drive H Bridge Output 2 (P1661) (00B87-03)................84
    002951.04 - Ground Short Circuit of Throttle Valve Drive H Bridge Output 2 (P1662) (00B87-04)................84
    003242.00 - DPF Inlet Temperature Sensor Temperature Abnormal High (P1436) (00CAA-00)................84
    003242.03 - DPF Inlet Temperature Sensor Fault (High Voltage) (P1428) (00CAA-03)................84
    003242.04 - DPF Inlet Temperature Sensor Fault (Low Voltage) (P1427) (00CAA-04)................84
    003242.10 - DPF Inlet Temperature Sensor Fault (Detected Value Error) (P167E) (00CAA-0A)................85
    003250.00 - DPF Intermediate Temperature Sensor Temperature Abnormal High (Post-Injection Error) (P1426) (00CB2-00)................85
    003250.01 - DPF Intermediate Temperature Sensor Temperature Abnormal Low Temperature (P0420) (00CB2-01)................85
    003250.03 - DPF Intermediate Temperature Sensor Fault (High Voltage) (P1434) (00CB2-03)................85
    003250.04 - DPF Intermediate Temperature Sensor Fault (Low Voltage) (P1435) (00CB2-04)................85
    003250.10 - DPF Intermediate Temperature Sensor Fault (Detected Value Error) (P167A) (00CB2-0A)................85
    003251.00 - DPF Differential Pressure Sensor Differential Pressure Abnormal High (P2452) (00CB3-00)................85
    003251.03 - DPF Differential Pressure Sensor Fault (High Voltage) (P2455) (00CB3-03)................85
    003251.04 - DPF Differential Pressure Sensor Fault (Low Voltage) (P2454) (00CB3-04)................85
    003251.13 - DPF Differential Pressure Sensor (Abnormal Learning Value) (P2453) (00CB3-0D)................85
    003609.03 - DPF High Pressure Side Sensor Fault (High Voltage) (P1455) (00E19-03)................85
    003609.04 - DPF High Pressure Side Sensor Fault (Low Voltage) (P1454) (00E19-04)................85
    003609.10 - DPF High Pressure Side Sensor Fault (Detected Value Error) (P167C) (00E19-0A)................85
    003695.00 - DPF Reset Regeneration Prohibited (P1425) (00E6F-00)................85
    003719.00 - Backup Mode (P1424) (00E87-00)................85
    003719.07 - DPF OP Interface Recovery Regeneration Prohibition (P1446) (00E87-07)................85
    003719.09 - DPF OP Interface Recovery Regeneration Error (P1445) (00E87-09)................85
    003720.00 - Ash Cleaning Request 2 (P1420) (00E88-00)................85
    003720.16 - Ash Cleaning Request 1 (P242F) (00E88-10)................85
    004257.12 - Injector Drive IC Error (P0611) (010A1-0C)................85
    004795.31 - Exhaust Filter Fault (Detected Value Error) (P226D) (012BB-1F)................85
    522183.01 - Exhaust Gas Recirculation (EGR) High Temperature Thermistor Malfunction (P1410) (7F957-01)................85
    522184.01 - Exhaust Gas Recirculation (EGR) Low Temperature Thermistor Malfunction (P1411) (7F958-01)................85
    522243.05 - Start Assist Relay Interrupted (P0543) (7F803-05)................85
    522243.06 - Startup Assist Relay Ground Interrupted (P0541) (7F803-06)................85
    522323.00 - Air Cleaner Clogged Alarm (P1101) (7F853-00)................85
    522329.00 - Oil/Water Separator Alarm (P1151) (7F859-00)................85
    522400.02 - Crank Speed Sensor (P0336) (7F8A0-02)................85
    522400.05 - No Crank Signal (P0337) (7F8A0-05)................85
    522401.02 - Cam Signal Malfunction (P0341) (7F8A1-02)................85
    522401.05 - No Cam Signal (P0342) (7F8A1-05)................86
    522401.07 - Angle Offset Error (P1341) (7F8A1-07)................86
    522749.12 - Exhaust Throttle (MPU fault) (P1441) (7F9FD-12)................86
    522571.03 - SCV (MPROP) High Pressure Pump Drive Circuit (Low Side VB Short Circuit) (P1641) (7F94B-03)................86
    522571.06 - High Pressure Pump Drive Circuit (Low Side Ground Short Circuit) (P1643) (7F94B-06)................86
    522572.06 - High Pressure Pump Drive Circuit (Drive Current) (High Level) (P062A) (7F94C-06)................86
    522572.11 - High Pressure Pump Drive Circuit (Pump Overload Error) (P1645) (7F94C-0B)................86
    522573.00 - Overaccumulation (Method C) (P2463) (7F94D-00)................86
    522574.00 - Overaccumulation (Method P) (P1463) (7F94E-00)................86
    522577.07 - Regeneration Defect (Stationary Regeneration Error) (P2458) (7F94F-07)................86
    522576.12 - EEPROM Memory Read Error (P160E) (7F950-0C)................86
    522577.11 - Regeneration Defect (Stationary Regeneration Not Performed) (P2459) (7F951-0B)................86
    522578.12 - EEPROM Memory Write Error (P160F) (7F952-0C)................86
    522579.12 - Short Circuit Between the Exhaust Gas Recirculation (EGR) Motor Coils (P1405) (7F953-0C)................86
    522580.12 - Exhaust Gas Recirculation (EGR) Position Sensor Malfunction (P0488) (7F954-0C)................86
    522581.07 - Exhaust Gas Recirculation (EGR) Valve Stuck Open Malfunction (P148A) (7F955-07)................86
    522582.07 - Exhaust Gas Recirculation (EGR) Valve Initialization Malfunction (P049D) (7F956-07)................86
    522585.12 - CY146 SPI Communication Error (P1613) (7F959-0C)................86
    522588.12 - Excessive Supply 1 Voltage Error (P1608) (7F95C-0C)................86
    522589.12 - Insufficient Supply 1 Voltage Error (P1617) (7F95D-0C)................86
    522590.12 - Sensor Supply Voltage Error 1 (P1609) (7F95E-0C)................86
    522591.12 - Sensor Supply Voltage Error 2 (P1618) (7F95F-0C)................86
    522592.12 - Sensor Supply Voltage Error 3 (P1619) (7F950-0C)................86
    522596.09 - TSC1 (CAN Message) Reception Time Out Error (SA1) (U0292) (7F964-09)................86
    522597.09 - TSC1 (CAN Message) Reception Time Out Error (U1301) (7F965-09)................86
    522599.09 - Y_ECR1 (CAN Message) Reception Time Out Error (U1292) (7F967-09)................86
    522600.09 - Y_EC (CAN Message) Reception Time Out Error (U1293) (7F968-09)................86
    522601.09 - Y_RSS (CAN Message) Reception Time Out (U1294) (7F969-09)................86
    522603.09 - VH (CAN Message) Reception Time Out (U1296) (7F96B-09)................86
    522605.09 - Y_ECM3 (CAN Message) Reception Time Out (U1298) (7F96D-09)................86
    522609.09 - Y_ETCP1 (CAN Message) Reception Time Out Error (U1300) (7F971-09)................86
    522610.09 - CAN1 (For EGR) Reception Time Out Error (U010B) (7F972-09)................87
    522611.09 - Exhaust Throttle (CAN Message From the Exhaust Throttle Time Out) (U1107) (7F973-09)................87
    522617.12 - Exhaust Gas Recirculation (EGR) Valve Target Value Out of Range (U1401) (7F979-0C)................87
    522618.09 - EBC1 (CAN Message) Reception Time Out (U1302) (7F97A-09)................87
    522619.09 - Y_DPFIF (CAN Message) Reception Time Out (U1303) (7F97B-09)................87
    522623.07 - Dual Accelerator Sensor (Open Position) Error (P1647) (7F97F-07)................87
    522624.07 - Dual Accelerator Sensor (Closed Position) Error (P1646) (7F980-07)................87
    522744.04 - Actuator Drive Circuit 1 Short to Ground (P1626) (7F9F8-04)................87
    522746.12 - Exhaust Throttle (Voltage Error) (P1438) (7F9FA-0C)................87
    522747.12 - Exhaust Throttle (Motor Error) (P1439) (7F9FB-0C)................87
    522748.12 - Exhaust Throttle (Sensor System Error) (P1440) (7F9FC-0C)................87
    522749.12 - Exhaust Throttle (MPU Error) (P1441) (7F9FD-0C)................87
    522750.12 - Exhaust Throttle (PCB Error) (P1442) (7F9FE-0C)................87
    522751.19 - Exhaust Throttle (CAN Error) (P1443) (7F9FF-013)................87
    522994.04 - Actuator Drive Circuit 2 Ground Short Circuit (P1633) (7FAF2-04)................87
    523249.05 - No Signal on Both Crank and Cam Speed Sensor (P0008) (7FBF1-05)................87
    523460.07 - Rail Pressure Error (Operation Time Error During RPS Limp Home) (P1670) (7FCC4-07)................87
    523462.13 - IQA Corrected Injection Amount For Injector 1 Error (P1648) (7FCC6-0D)................87
    523463.13 - IQA Corrected Injection Amount For Injector 2 Error (P1649) (7FCC7-0D)................87
    523464.13 - IQA Corrected Injection Amount For Injector 3 Error (P1650) (7FCC8-0D)................87
    523465.13 - IQA Corrected Injection Amount For Injector 4 Error (P1651) (7FCC9-0D)................87
    523468.09 - Rail Pressure Error (Controlled Rail Pressure Error After PLV Valve Opening) (P1665) (7FCCC-09)................87
    523469.00 - Rail Pressure Error (The Number of Times the PLV Valve Opens Error) (P1666) (7FCCD-00)................87
    523470.00 - Rail Pressure Error (The Time of PLV Valve Opening Error) (P1667) (7FCCE-00)................87
    523471.06 - Engine Control Unit (ECU) Internal Error (Actuator Drive Circuit 3 Short to Ground) (P1467) (7FCCF-06)................87
    523473.12 - Engine Control Unit (ECU) Internal Error (AD Converter Error 1) (P1469) (7FCD1-0C)................87
    523474.12 - Engine Control Unit (ECU) Internal Error (AD Converter Error 2) (P1470) (7FCD1-0C)................87
    523475.12 - Engine Control Unit (ECU) Internal Error (External Monitoring IC And CPU Error 1) (P1471) (7FCD3-0C)................87
    523476.12 - Engine Control Unit (ECU) Internal Error (External Monitoring IC And CPU Error 2) (P1472) (7FCD4-0C)................87
    523477.12 - Engine Control Unit (ECU) Internal Error (ROM Error) (P1473) (7FCD5-0C)................88
    523478.12 - Engine Control Unit (ECU) Internal Error (Shutoff Path Error 1) (P1474) (7FCD6-0C)................88
    523479.12 - Engine Control Unit (ECU) Internal Error (Shutoff Path Error 2) (P1475) (7FCD7-0C)................88
    523480.12 - Engine Control Unit (ECU) Internal Error (Shutoff Path Error 3) (P1476) (7FCD8-0C)................88
    523481.12 - Engine Control Unit (ECU) Internal Error (Shutoff Path Error 4) (P1477) (7FCD9-0C)................88
    523482.12 - Engine Control Unit (ECU) Internal Error (Shutoff Path Error 5) (P1478) (7FCDA-0C)................88
    523483.12 - Engine Control Unit (ECU) Internal Error (Shutoff Path Error 6) (P1479) (7FCDB-0C)................88
    523484.12 - Engine Control Unit (ECU) Internal Error (Shutoff Path Error 7) (P1480) (7FCDC-0C)................88
    523485.12 - Engine Control Unit (ECU) Internal Error (Shutoff Path Error 8) (P1481) (7FCDD-0C)................88
    523486.12 - Engine Control Unit (ECU) Internal Error (Shutoff Path Error 9) (P1482) (7FCDE-0C)................88
    523487.12 - Engine Control Unit (ECU) Internal Error (Shutoff Path Error 10) (P1483) (7FCDF-0C)................88
    523488.00 - Engine Control Unit (ECU) Internal Error (Recognition Error of Engine Speed) (P1484) (7FCE0-00)................88
    523489.00 - Rail Pressure Error (The Actual Rail Pressure is Too High During PRV Limp Home) (P1668) (7FCE1-00)................88
    523491.00 - Rail Pressure Error (Injector B/F Temperature Error During PLV4 Limp Home) (P1669) (7FCE3-00)................88
  Group 20: Monitor Display Diagnostic Trouble Codes................286
    Monitor Display Diagnostic Trouble Codes................286
  Group 30: Central Control Unit (CCU) Diagnostic Trouble Codes................288
    Central Control Unit (CCU) Diagnostic Trouble Codes................288
    000029.03 - Engine Throttle Pedal Position Signal 2 Circuit Fault (0001D-03)................88
    000029.04 - Engine Throttle Pedal Position Signal 2 Circuit Fault (0001D-04)................88
    000091.03 - Engine Throttle Pedal Position Signal 1 Circuit Fault (0005B-03)................88
    000091.04 - Engine Throttle Pedal Position Signal 1 Circuit Fault (0005B-04)................88
    000091.12 - Engine Throttle Pedal Position Fault (0005B-12)................88
    000091.14 - Engine Throttle Pedal Position Fault (0005B-14)................88
    000091.24 - Engine Throttle Pedal Position Fault (0005B-24)................88
    000091.26 - Engine Throttle Pedal Position Fault (0005B-26)................88
    000158.03 - Unswitched Power Voltage High (0009E-03)................88
    000158.04 - Unswitched Power Voltage Low (0009E-04)................88
    000190.02 - Engine Speed Data Incorrect (000BE-02)................88
    000190.11 - Engine Speed Data Incorrect (000BE-11)................88
    000629.02 - CCU Internal Error (00275-02)................88
    000629.08 - CCU Fault (00275-08)................89
    000629.09 - CCU Fault (00275-09)................89
    000629.10 - CCU Fault (00275-10)................89
    000629.12 - CCU Fault (00275-12)................89
    000629.14 - CCU Fault (00275-14)................89
    000629.22 - CCU Fault (00275-22)................89
    000629.23 - CCU Fault (00275-23)................89
    000629.24 - CCU Fault (00275-24)................89
    000629.25 - CCU Fault (00275-25)................89
    000629.26 - CCU Fault (00275-26)................89
    000629.27 - CCU Fault (00275-27)................89
    000629.28 - CCU Fault (00275-28)................89
    000629.29 - CCU Fault (00275-29)................89
    000629.30 - CCU Fault (00275-30)................89
    000629.31 - CCU Fault (00275-31)................89
    000639.11 - Controller CAN 0 Fault (0027F-11)................89
    000639.19 - Controller CAN 0 Fault (0027F-19)................89
    000741.04 - Hydrostatic Drive Pump Forward Solenoid Circuit Fault (002E5-04)................89
    000741.05 - Hydrostatic Drive Pump Forward Solenoid Circuit Fault (002E5-05)................89
    000741.11 - Hydrostatic Drive Pump Forward Solenoid (002E5-11)................89
    001231.02 - CCU CAN Fault (004CF-02)................89
    001231.09 - CCU CAN Fault (004CF-09)................89
    001231.10 - CCU CAN Fault (004CF-10)................89
    001231.11 - CCU CAN Fault (004CF-11)................89
    001231.14 - CCU CAN Fault (004CF-14)................89
    001231.19 - CCU CAN Fault (004CF-19)................89
    002000.09 - CAN Comm Lost For ECU (007D0-09)................89
    002734.00 - Auxiliary Circuit Fault (00AAE-00)................89
    002734.01 - Auxiliary Circuit Fault (00AAE-01)................89
    002734.03 - Auxiliary Circuit Fault (00AAE-03)................89
    002734.04 - Auxiliary Circuit Fault (00AAE-04)................89
    002734.12 - Auxiliary Fault (00AAE-12)................89
    002734.14 - Auxiliary Fault (00AAE-14)................89
    002734.24 - Auxiliary Fault (00AAE-24)................90
    002734.26 - Auxiliary Circuit Fault (00AAE-26)................90
    003509.03 - CCU Sensor Supply Circuit Fault (00DB5-03)................90
    003509.04 - CCU Sensor Supply Circuit Fault (00DB5-04)................90
    006723.04 - Hydrostatic Drive Pump Reverse Solenoid Circuit Fault (01A43-04)................90
    006723.05 - Hydrostatic Drive Pump Reverse Solenoid Circuit Fault (01A43-05)................90
    006723.11 - Hydrostatic Drive Pump Reverse Solenoid Fault (01A43-11)................90
    520539.02 - FNR Reverse Circuit Fault (7F15B-02)................90
    520540.02 - FNR Forward Circuit Fault (7F15C-02)................90
    521934.02 - Creep Control Solenoid Circuit Fault (7F6CE-02)................90
    521934.03 - Creep Control Solenoid Circuit Fault (7F6CE-03)................90
    521934.04 - Creep Control Solenoid Circuit Fault (7F6CE-04)................90
    521934.05 - Creep Control Solenoid Circuit Fault (7F6CE-05)................90
    521934.11 - Creep Control Solenoid Fault (7F6CE-11)................90
    521991.00 - CCU Temperature (7F707-00)................90
    521991.01 - CCU Temperature (7F707-01)................90
    522379.03 - Park Brake Solenoid Circuit Fault (7F88B-03)................90
    522379.04 - Park Brake Solenoid Circuit Fault (7F88B-04)................90
    522379.05 - Park Brake Solenoid Circuit Fault (7F88B-05)................90
    522379.11 - Park Brake Circuit Fault (7F88B-11)................90
    522411.12 - FNR Selector Fault (7F8AB-12)................90
    522454.03 - Creep Control Potentiometer Circuit Fault (7F8D6-03)................90
    522454.04 - Creep Control Potentiometer Circuit Fault (7F8D6-04)................90
    522454.12 - Creep Control Potentiometer Fault (7F8D6-12)................90
    522454.24 - Creep Control Potentiometer Fault (7F8D6-24)................90
    522474.03 - Hydrostatic Drive Pump Direction Solenoid Circuit Fault (7F8EA-03)................90
    522474.04 - Hydrostatic Drive Pump Direction Solenoid Circuit Fault (7F8EA-04)................90
    522474.05 - Hydrostatic Drive Pump Direction Solenoid Circuit Fault (7F8EA-05)................90
    522474.11 - Hydrostatic Drive Pump Direction Solenoid Fault (7F8EA-11)................90
    522474.28 - Hydrostatic Drive Pump Direction Solenoid Circuit Fault (7F8EA-28)................90
    523932.02 - Third Function Proportional B Circuit Fault (7FE9C-02)................90
    523932.03 - Third Function Proportional B Circuit Fault (7FE9C-03)................90
    523932.04 - Third Function Proportional B Circuit Fault (7FE9C-04)................90
    523932.05 - Third Function Proportional B Circuit Fault (7FE9C-05)................91
    523932.11 - Third Function Proportional B Circuit Fault (7FE9C-11)................91
    523933.02 - Third Function Proportional A Circuit Fault (7FE9D-02)................91
    523933.04 - Third Function Proportional A Circuit Fault (7FE9D-04)................91
    523933.11 - Third Function Proportional A Circuit Fault (7FE9D-11)................91
    523933.12 - Third Function Proportional A Circuit Fault (7FE9D-12)................91
Section 9005: Operational Checkout Procedure................411
  Group 10: Operational Checkout Procedure................411
    Operational Checkout................435
Section 9010: Engine................458
  Group 05: Theory of Operation................458
    Yanmar Engine................472
  Group 10: System Diagrams................458
    Yanmar Engine................472
    Engine Cooling System Component Location................463
    Engine Fuel System Component Location................464
    Engine Intake and Exhaust System Component Location................465
  Group 15: Diagnostic Information................458
    Yanmar Engine................472
  Group 20: Adjustments................458
    Yanmar Engine................472
    Service Filter Cleaning................470
  Group 25: Tests................458
    Yanmar Engine................472
    Engine Idle Speeds Check................473
Section 9015: Electrical System................474
  Group 05: Theory of Operation................474
    Power Circuit Theory of Operation................480
    Start and Charge Circuits Theory of Operation................483
    Cold Start Aid Circuit Theory of Operation................486
    Controller Area Network (CAN) Theory of Operation................488
    Park Brake Release Circuit Theory of Operation................493
    Forward, Reverse, Speed Range, and Backup Alarm Circuits Theory of Operation................498
    Working Hydraulics Lockout Circuit Theory of Operation................504
    Third Function Circuit Theory of Operation................507
    Ride Control Circuit Theory of Operation................513
    Hazard and Turn Lights Circuits Theory of Operation................517
    Headlights, Marker Lights, and Horn Circuits Theory of Operation—Canopy................521
    Headlights, Marker Lights, and Horn Circuits Theory of Operation—Cab................524
    Quik-Tatch™ Circuit Theory of Operation................527
    Air Conditioner Circuit Theory of Operation................530
    Central Control Unit (CCU) Circuit Theory of Operation (S.N. 52511), (S.N. 52710), (S.N. 56148), (S.N. 56167), (S.N. 56791— )................533
  Group 10: System Diagrams................474
    Electrical Diagram Information................540
    Electrical Schematic Symbols................544
    Fuse and Relay Specifications................547
    System Functional Schematic, Component Location, and Wiring Diagram Master Legend—Cab................557
    System Functional Schematic—Cab................573
    System Functional Schematic, Component Location, and Wiring Diagram Master Legend—Canopy................604
    System Functional Schematic—Canopy................618
    Engine Harness (W6) Component Location................645
    Engine Harness (W6) Wiring Diagram................646
    Loader/Rear Frame Harness (W7) Component Location................650
    Loader/Rear Frame Harness (W7) Wiring Diagram................654
    Cab Harness (W8) Component Location................658
    Cab Harness (W8) Wiring Diagram................664
    Canopy Harness (W9) Component Location................671
    Canopy Harness (W9) Wiring Diagram................675
    Service ADVISOR™ Harness (W11) Component Location................682
    Service ADVISOR™ Harness (W11) Wiring Diagram................683
    Quik-Tatch™ Harness (W12) Component Location................684
    Quik-Tatch™ Harness (W12) Wiring Diagram................685
    Quik-Tatch™ Extension Harness (W13) Component Location................686
    Quik-Tatch™ Extension Harness (W13) Wiring Diagram................687
    Electrohydraulic (EH) Harness (W14) Component Location—Cab Machines Only (S.N. —56790)................688
    Electrohydraulic (EH) Harness (W14) Wiring Diagram—Cab Machines Only (S.N. —56790)................689
    Electrohydraulic (EH) Control Harness (W15) Component Location—Cab Machines Only (S.N. —56790)................690
    Electrohydraulic (EH) Control Harness (W15) Wiring Diagram—Cab Machines Only (S.N. —56790)................691
    Ride Control Harness (W16) Component Location—Cab Machines Only................692
    Ride Control Harness (W16) Wiring Diagram—Cab Machines Only................693
    Ride Control Extension Harness (W17) Component Location................695
    Ride Control Extension Harness (W17) Wiring Diagram................696
    3rd Function Continuous Flow Harness (W18) Component Location—Cab Machines Only (S.N. 52511), (S.N. 52710), (S.N. 56148), (S.N. 56167), (S.N. 56791— )................697
    3rd Function Continuous Flow Harness (W18) Wiring Diagram—Cab Machines Only (S.N. 52511), (S.N. 52710), (S.N. 56148), (S.N. 56167), (S.N. 56791— )................698
  Group 15: Diagnostic Information................475
    Service ADVISOR™ Diagnostic Application................700
    Service ADVISOR™ Connection Procedure................701
    Reading Diagnostic Trouble Codes With Service ADVISOR™ Diagnostic Application................704
    Intermittent Diagnostic Trouble Code (DTC) Diagnostics................706
    Diagnostic Trouble Code Designations................707
    Electrical Component Specifications................711
  Group 25: Tests................475
    Controller Area Network (CAN) Circuit Test................723
    Alternator Test................734
    Wire Harness Test................736
    Engine Control Unit (ECU) Replacement Calibration................737
    Fuel Pump Replacement Calibration................740
    Yanmar Display Calibration Values Test................742
    Engine Speed Control Pedal Sensor Test................743
    Sensor Circuit Check................746
    Return-to-Dig Adjustment................748
    Connector Terminal Test................749
Section 9020: Power Train................752
  Group 05: Theory Of Operation................752
    Power Train Operation................756
    Hydrostatic Transmission Operation—Neutral................757
    Hydrostatic Transmission Operation—Forward (Low Speed)................760
    Hydrostatic Transmission Operation—Forward (High Speed)................764
    Hydrostatic Transmission Operation—Reverse (Low Speed)................767
    Hydrostatic Pump Operation................770
    Hydrostatic Pump Swash Plate Operation................772
    Hydrostatic Pump Control Operation—Reverse (Engine Speed at Less Than Fast Idle)................773
    Hydrostatic Pump Control Operation—Forward (Engine Speed at Fast Idle)................776
    High-Pressure Relief Valve Operation................779
    Hydrostatic Motor Operation—Neutral................781
    Hydrostatic Motor Operation—Reverse (Low Speed)................783
    Hydrostatic Motor Operation—Forward (High Speed)................785
    Gear Case Operation................788
    Inching Valve Operation................790
    Brake Valve Operation................791
    Service and Park Brake Operation................795
    Park Brake Release Solenoid Valve Operation................798
    Creep Control Valve Operation................801
    Differential Limited Slip Operation................803
  Group 10: System Diagrams................752
    Power Train Component Location................806
    Service and Park Brake System Component Location................808
    Hydrostatic Transmission Schematic................812
    Service Brake and Park Brake System Schematic................814
  Group 15: Diagnostic Information................752
    Machine Does Not Move................752
    Machine Does Not Move at Low Idle................752
    Machine Moves in One Direction Only................752
    Machine Drives Erratically................752
    Machine Moves in Wrong Direction................753
    Cannot Find or Hold Neutral................753
    Hydraulic Oil Overheats................753
    Lack of Power or Sluggish................753
    Foaming Oil................753
    Machine Vibrates................753
    Differential Low on Oil................753
    Excessive Differential and/or Axle Noise................753
    Oil Seeping From Outer Axle Seal................753
    Axle Overheats................753
    Excessive Driveline Vibration or Noise................753
    Park Brake Will Not Hold................753
    Park Brake Overheats................753
    Park Brake Indicator in Monitor Does Not Come ON When Park Brake Applied................753
    Park Brake Will Not Apply................753
    Park Brake Will Not Release................753
    Poor or No Service Brakes................753
    Service Brakes Aggressive................753
    Service Brakes Dragging................753
    Service Brakes Chatter................753
  Group 20: Adjustments................753
    Hydrostatic Motor Minimum Displacement Adjustment................867
    Brake/Inching Pedal Linkage Adjustment................869
    Service Brakes (Wet Disc) Inspection................872
    Drum Brake Inspection................873
  Group 25: Tests................753
    Before Performing Hydrostatic Transmission Tests................875
    Neutral Charge Relief Valve Pressure Test and Adjustment................876
    Hydrostatic Pump Begin Regulation Test and Adjustment................879
    Hydrostatic Pump Performance (Timing) Test and Adjustment................882
    High-Pressure Relief Valve Test and Adjustment................886
    Hydrostatic Pump Pressure Override (POR) Valve Pressure Test and Adjustment................890
    Hydrostatic Motor Begin Regulation of Displacement Control Valve Test and Adjustment................893
    Hydrostatic Pump Isolation Procedure................896
    Hydrostatic Adjusting Screws (With Tamper-Proof Caps)................898
Section 9025: Hydraulic System................900
  Group 05: Theory of Operation................900
    Hydraulic System Operation................904
    Hydraulic Pump Operation................906
    Priority Valve Operation................908
    Orbital Steering Circuit Operation................911
    Orbital Steering Valve Operation................913
    Steering Cylinder Relief Valve Operation................917
    Loader Control Valve Operation................918
    Loader Control Valve Operation—Boom Section................922
    Loader Control Valve Operation—Bucket Section................924
    Loader Control Valve Operation—Auxiliary Section................926
    Loader System Relief Valve Operation................928
    Loader Control Valve Circuit Relief Valve With Anticavitation Operation................930
    Ride Control Valve Operation................933
    Hydraulic Enable Solenoid Operation................935
    Return/Suction Filter Operation................938
  Group 10: System Diagrams................900
    Hydraulic System Schematic................942
    Orbital Steering System Schematic................944
    Loader Hydraulic System Component Location................946
    Orbital Steering System Component Location................948
  Group 15: Diagnostic Information................900
    No Hydraulic Functions................900
    Slow Hydraulic Functions................900
    Noisy Hydraulic Pumps................900
    Boom Float Function Does Not Work................900
    One Hydraulic Function Does Not Work................900
    Low Hydraulic Power................900
    Function Drifts Down................900
    Boom Down Does Not Work (Engine Off)................900
    Oil Overheats................900
    Function Drops Before Rising When Valve is Activated................901
    Hydraulic Oil Foams................901
    No Steering Functions................901
    Constant Steering to Maintain Straight Travel................901
    No Steering Function During Slow Steering Wheel Movement................901
    Steering Wheel Turns With No Resistance and Causes No Frame Movement................901
    Erratic Steering................901
    Spongy or Soft Steering................901
    Free Play at Steering Wheel................901
    Steering Wheel Does Not Immediately Return to Neutral When Released................901
    Orbital Steering Valve Locks Up................901
    Abrupt Steering Wheel Oscillation................901
    Steering Wheel Turns by Itself................901
    Machine Turns in Opposite Direction................901
    Machine Turns When Orbital Steering Valve Is in Neutral................901
  Group 25: Test................901
    Hydraulic Oil Warm-Up Procedure................1000
    Hydraulic System Pressure Discharge Procedure................1002
    JT02156A Digital Pressure and Temperature Analyzer Kit Installation................1003
    Orbital Steering System Relief Valve Pressure Test................1004
    Steering Cylinder Leakage Test................1006
    Loader System Relief Valve Pressure Test................1008
    Loader Circuit Relief Valve Pressure Test................1011
    Ride Control System Relief Valve Pressure Test................1015
    Loader Cylinder Drift Test................1018
    Boom and Bucket Cylinder Leakage Test................1021
Section 9031: Heating and Air Conditioning................1023
  Group 05: Theory of Operation................1023
    Air Conditioning System Cycle of Operation................1026
  Group 10: System Diagrams................1023
    Air Conditioner and Heater Component Location................1029
  Group 15: Diagnostic Information................1023
    Air Conditioning System Does Not Operate................1023
    Air Conditioning System Does Not Cool Interior of Cab................1023
    Air Conditioning System Runs Constantly, Too Cold................1023
    Heating System Does Not Operate................1023
    Heating System Does Not Warm Interior of Cab................1023
    Interior Windows Continue to Fog................1023
  Group 25: Tests................1023
    R134a Refrigerant Cautions and Proper Handling................1052
    R134a Oil Charge Capacity................1053
    R134a Refrigerant Charge Capacity................1054
    Heater and Air Conditioner Operational Checks................1055
    Air Conditioner Compressor Clutch Test................1059
    R134a Refrigerant Leak Test................1060
    R134a Refrigerant Hoses and Tubing Inspection................1061
    Air Conditioner High/Low-Pressure Switch Test................1062
    Air Conditioner Freeze Control Switch Test................1065
    Operating Pressure Diagnostic Chart................1066

John Deere 204L and 304L Compact 4WD Loader Diagnosis and Test Service Technical Manual (TM14271X19)