Caterpillar 3406E and C15 Marine Engines Workshop Service Repair manual with Electrical Wiring Diagrams (including maintenance, overhaul, disassembling & assembling, adjustment, tune-up, operation, inspecting, diagnosis & troubleshooting…) is divided into different sections. Each section covers a specific component or system with detailed illustrations. A table of contents is placed at the beginning of each section. Pages are easily found by category, and each page is expandable for great detail. The printer-ready PDF documents work like a charm on all kinds of devices.

This manual contains high quality images, circuit diagrams, instructions to help you to maintenance, troubleshoot, diagnose, and repair. This document is printable, without restrictions, contains searchable text, bookmarks, crosslinks for easy navigation.

RENR9715 - Disassembly and Assembly (3406E and C15 Marine Engines).pdf
UENR3959 - Systems Operation (Marine Engine Control Panel I).pdf
SENR9673 - Testing & Adjusting (3406E and C15 Marine Engines).pdf
SENR9673 - Systems Operation (3406E and C15 Marine Engines).pdf
SENR9672 - Specifications (3406E and C15 Marine Engines).pdf
SENR9646 - Troubleshooting (3406E; C12; C15 & C18 Marine Engines).pdf
SENR9646 - Troubleshooting (3406E, C12, C15 & C18 Marine Engines).pdf
SENR1193 - Schematic (3406E Marine Engine Electrical System).pdf
SENR1169 - Disassembly and Assembly (3406E Marine Engine).pdf
SENR1168 - Testing & Adjusting (3406E MARINE ENGINE).pdf
SENR1168 - Systems Operation (3406E MARINE ENGINE).pdf
SENR1167 - Specifications (3406E Marine Engine).pdf
RENR2383 - Schematic (C15; C18 and 3406E Marine Engine Electrical System) (SN 9WR10000-UP; All Other SN 1-UP).pdf

RENR2383 - Schematic (C15; C18 and 3406E Marine Engine Electrical System) (SN 9WR10000-UP; All Other SN 1-UP)................2
  collage................2
  main................17
    Features................17
    Cover Page................18
    Information................0
      Harness Connector Table................0
        Page 1 of 3................19
        Page 2 of 3................20
        Page 3 of 3................21
      CID / MID / FMI................22
      Specification and Related Manuals................23
      Standard Electrical................24
    Schematic................25
    Machine Views................0
      Connector and Splice Locations for Harness 122-1486................26
      Connector and Splice Locations  Harness202-2090 -02, -03 AND -04................27
      Connector and Splice Locations................28
      Connector and Splice Locations Harness 202-2091-04................29
      Left Side View (Left Hand Engine With Duplex Fuel Filters)................30
      Left Side View (Left Hand Engine)................31
      Left Side View (Right Hand Engine)................32
      Left Side View (Typical Right Hand Engine With Twin Turbos)................33
      Rear View (Left Hand Engine)................34
      Rear View (Right Hand Engine)................35
      Right Side View (Right Hand Engine)................36
      Right Side View (Typical Right Hand Engine With Twin Turbos)................37
      Top View (Left Hand Engine)................38
      Top View (Right Hand Engine With Duplex mFuel Filters)................39
      Top View (Right Hand Engine With Single Turbo)................40
      Top View (Right Hand Engine With Twin Turbo)................41
RENR9715 - Disassembly and Assembly (3406E and C15 Marine Engines)................42
  Fuel Priming Pump - Remove and Install................46
  Fuel Filter Base - Remove and Install................49
  Fuel Transfer Pump - Remove................53
  Fuel Transfer Pump - Install................55
  Fuel Manifold - Remove................57
  Fuel Manifold - Install................59
  Electronic Unit Injector - Remove................61
  Electronic Unit Injector - Install................65
  Electronic Unit Injector Sleeve - Remove................68
  Electronic Unit Injector Sleeve - Install................70
  Turbocharger - Remove................73
  Turbocharger - Disassemble................76
  Turbocharger - Assemble................78
  Turbocharger - Install................80
  Exhaust Manifold - Remove and Install................84
  Inlet and Exhaust Valve Springs - Remove and Install................89
  Inlet and Exhaust Valves - Remove and Install................94
  Inlet and Exhaust Valve Guides - Remove and Install................99
  Inlet and Exhaust Valve Seat Inserts - Remove and Install................102
  Inlet and Exhaust Valve Seals - Remove and Install................105
  Engine Oil Filter Base - Remove................108
  Engine Oil Filter Base - Disassemble................110
  Engine Oil Filter Base - Assemble................112
  Engine Oil Filter Base - Install................114
  Engine Oil Cooler - Remove................116
  Engine Oil Cooler - Disassemble................119
  Engine Oil Cooler - Assemble................121
  Engine Oil Cooler - Install................123
  Engine Oil Pump - Remove................125
  Engine Oil Pump - Disassemble................127
  Engine Oil Pump - Assemble................130
  Engine Oil Pump - Install................133
  Water Pump - Remove................135
  Water Pump - Disassemble................137
  Water Pump - Assemble................139
  Water Pump - Install................142
  Water Temperature Regulator - Remove and Install................144
  Auxiliary Water Pump - Remove................149
  Auxiliary Water Pump - Disassemble - Type 1................151
  Auxiliary Water Pump - Disassemble - Rubber Impeller................158
  Auxiliary Water Pump - Assemble - Type 1................161
  Auxiliary Water Pump - Assemble - Rubber Impeller................167
  Auxiliary Water Pump - Install................170
  Aftercooler - Remove................172
  Aftercooler - Install................178
  Heat Exchanger - Remove................183
  Heat Exchanger - Disassemble................186
  Heat Exchanger - Assemble................191
  Heat Exchanger - Install................196
  Engine Lifting Bracket - Remove and Install................199
  Engine Support (Front) - Remove and Install................202
  Flywheel - Remove................204
  Flywheel - Install................206
  Crankshaft Rear Seal - Remove................209
  Crankshaft Rear Seal - Install................211
  Flywheel Housing - Remove and Install................213
  Vibration Damper and Pulley - Remove and Install................218
  Crankshaft Front Seal - Remove................221
  Crankshaft Front Seal - Install................223
  Gear Group (Front) - Remove................225
  Gear Group (Front) - Install................228
  Housing (Front) - Remove................233
  Housing (Front) - Install................235
  Valve Mechanism Cover - Remove and Install................237
  Valve Mechanism Cover Base - Remove and Install................240
  Rocker Arm and Shaft - Remove................244
  Rocker Arm - Disassemble................247
  Rocker Arm - Assemble................249
  Rocker Arm and Shaft - Install................251
  Cylinder Head - Remove................254
  Cylinder Head - Install................259
  Camshaft - Remove................266
  Camshaft - Install................276
  Camshaft Gear - Remove and Install................285
  Camshaft Bearings - Remove................289
  Camshaft Bearings - Install................292
  Engine Oil Pan - Remove and Install................297
  Cylinder Liner - Remove................301
  Cylinder Liner - Install................303
  Piston Cooling Jets - Remove and Install................306
  Pistons and Connecting Rods - Remove................309
  Pistons and Connecting Rods - Disassemble................311
  Pistons and Connecting Rods - Assemble................313
  Pistons and Connecting Rods - Install................318
  Connecting Rod Bearings - Remove................322
  Connecting Rod Bearings - Install................324
  Crankshaft Main Bearings - Remove................326
  Crankshaft Main Bearings - Install................328
  Crankshaft - Remove................331
  Crankshaft - Install................334
  Bearing Clearance - Check................337
  Coolant Level Sensor - Remove and Install................340
  Coolant Temperature Sensor - Remove and Install................343
  Engine Oil Pressure Sensor - Remove and Install................346
  Fuel Pressure Sensor - Remove and Install................349
  Fuel Temperature Sensor - Remove and Install................352
  Camshaft Position Sensor - Remove and Install................355
  Crankshaft Position Sensor - Remove and Install................358
  Turbocharger Outlet Pressure Sensor - Remove and Install................361
  Inlet Air Temperature Sensor - Remove and Install................363
  Electronic Control Module - Remove and Install................365
  Electric Starting Motor - Remove and Install................369
SENR1167 - Specifications (3406E Marine Engine)................372
  Air Starting Motor Pressure Regulating Valve................372
  Alternator and Regulator................374
  Atmospheric Pressure Sensor................382
  Auxiliary Water Pump................383
  Belt Tension Chart................387
  Boost Pressure Sensor................389
  Camshaft................390
  Circuit Breakers................395
  Connecting Rod Bearing Journal................398
  Connecting Rod................399
  Coolant Temperature Sensor................402
  Crankshaft................403
  Cylinder Block................406
  Cylinder Head Valves................412
  Cylinder Head................417
  Cylinder Liner................421
  Electric Starting Motor................423
  Electronic Unit Injector Mechanism................434
  Electronic Unit Injector Rocker Arm................436
  Engine Design................437
  Engine Oil Filter Base................439
  Engine Oil Pan................441
  Engine Oil Pressure Sensor................444
  Engine Oil Pressure................445
  Engine Oil Pump................447
  Exhaust Manifold................450
  Flywheel Housing................452
  Flywheel................454
  Front Housing and Covers................456
  Fuel Filter Base................458
  Fuel Temperature Sensor................459
  Fuel Transfer Pump................460
  Gear Group (Front)................462
  Heat Exchanger................467
  Housing (Front)................469
  Inlet Air Temperature Sensor................471
  Magnetic Pickup................472
  Main Bearing Journal................473
  Piston and Rings................475
  Speed_Timing Sensor................477
  Tachometer Calibration Chart................478
  Tachometer................479
  Turbocharger................481
  Valve Mechanism Cover................483
  Valve Mechanism................485
  Water Pump................487
  Water Temperature Regulator................489
SENR1168 - Systems Operation (3406E MARINE ENGINE)................490
SENR1168 - Testing & Adjusting (3406E MARINE ENGINE)................530
SENR1169 - Disassembly and Assembly (3406E Marine Engine)................587
  Aftercooler - Install................587
  Aftercooler - Remove................592
  Auxiliary Water Pump - Assemble - Rubber Impeller................598
  Auxiliary Water Pump - Assemble - Type 1................601
  Auxiliary Water Pump - Disassemble - Rubber Impeller................607
  Auxiliary Water Pump - Disassemble - Type 1................610
  Auxiliary Water Pump - Install................617
  Auxiliary Water Pump - Remove................619
  Bearing Clearance - Check................621
  Camshaft - Install................624
  Camshaft - Remove................633
  Camshaft Bearings - Install................643
  Camshaft Bearings - Remove................648
  Camshaft Gear - Remove and Install................651
  Camshaft Position Sensor - Remove and Install................655
  Connecting Rod Bearings - Install................658
  Connecting Rod Bearings - Remove................660
  Coolant Level Sensor - Remove and Install................662
  Coolant Temperature Sensor - Remove and Install................665
  Crankshaft - Install................668
  Crankshaft - Remove................671
  Crankshaft Front Seal - Install................674
  Crankshaft Front Seal - Remove................676
  Crankshaft Main Bearings - Install................678
  Crankshaft Main Bearings - Remove................681
  Crankshaft Position Sensor - Remove and Install................683
  Crankshaft Rear Seal - Install................686
  Crankshaft Rear Seal - Remove................688
  Cylinder Head - Install................690
  Cylinder Head - Remove................697
  Cylinder Liner - Install................702
  Cylinder Liner - Remove................705
  Electric Starting Motor - Remove and Install................707
  Electronic Control Module - Remove and Install................710
  Electronic Unit Injector - Install................714
  Electronic Unit Injector - Remove................717
  Electronic Unit Injector Sleeve - Install................721
  Electronic Unit Injector Sleeve - Remove................724
  Engine Lifting Bracket - Remove and Install................726
  Engine Oil Cooler - Assemble................729
  Engine Oil Cooler - Disassemble................731
  Engine Oil Cooler - Install................733
  Engine Oil Cooler - Remove................735
  Engine Oil Filter Base - Assemble................738
  Engine Oil Filter Base - Disassemble................740
  Engine Oil Filter Base - Install................742
  Engine Oil Filter Base - Remove................744
  Engine Oil Pan - Remove and Install................746
  Engine Oil Pressure Sensor - Remove and Install................750
  Engine Oil Pump - Assemble................753
  Engine Oil Pump - Disassemble................756
  Engine Oil Pump - Install................759
  Engine Oil Pump - Remove................761
  Engine Support (Front) - Remove and Install................763
  Exhaust Manifold - Remove and Install................765
  Flywheel - Install................770
  Flywheel - Remove................773
  Flywheel Housing - Remove and Install................775
  Fuel Filter Base - Remove and Install................780
  Fuel Manifold - Install................784
  Fuel Manifold - Remove................786
  Fuel Pressure Sensor - Remove and Install................788
  Fuel Priming Pump - Remove and Install................791
  Fuel Temperature Sensor - Remove and Install................794
  Fuel Transfer Pump - Install................797
  Fuel Transfer Pump - Remove................799
  Gear Group (Front) - Install................801
  Gear Group (Front) - Remove................806
  Heat Exchanger - Assemble................809
  Heat Exchanger - Disassemble................814
  Heat Exchanger - Install................819
  Heat Exchanger - Remove................822
  Housing (Front) - Install................825
  Housing (Front) - Remove................827
  Inlet Air Temperature Sensor - Remove and Install................829
  Inlet and Exhaust Valve Guides - Remove and Install................831
  Inlet and Exhaust Valve Seals - Remove and Install................834
  Inlet and Exhaust Valve Seat Inserts - Remove and Install................837
  Inlet and Exhaust Valve Springs - Remove and Install................840
  Inlet and Exhaust Valves - Remove and Install................850
  Marine Transmission Oil Cooler - Remove and Install................860
  Marine Transmission Oil Cooler Core - Remove and Install................863
  Piston Cooling Jets - Remove and Install................866
  Pistons and Connecting Rods - Assemble................869
  Pistons and Connecting Rods - Disassemble................874
  Pistons and Connecting Rods - Install................876
  Pistons and Connecting Rods - Remove................880
  Rocker Arm - Assemble................882
  Rocker Arm - Disassemble................884
  Rocker Arm and Shaft - Install................886
  Rocker Arm and Shaft - Remove................889
  Turbocharger - Assemble................892
  Turbocharger - Disassemble................894
  Turbocharger - Install................896
  Turbocharger - Remove................900
  Turbocharger Outlet Pressure Sensor - Remove and Install................903
  Valve Mechanism Cover - Remove and Install................905
  Valve Mechanism Cover Base - Remove and Install................908
  Vibration Damper and Pulley - Remove and Install................912
  Water Pump - Assemble................915
  Water Pump - Disassemble................918
  Water Pump - Install................920
  Water Pump - Remove................922
  Water Temperature Regulator - Remove and Install................924
SENR1193 - Schematic (3406E Marine Engine Electrical System)................929
  Collage................929
  Main................955
    Features................955
    Cover Page................956
    Information................0
      Standard Electrical................957
    Schematic................958
    Machine View................0
      Sensor and Connector Location................959
SENR9646 - Troubleshooting (3406E, C12, C15 & C18 Marine Engines)................960
  Alternator................965
  Analog Sensor Supply Circuit - Test................976
  Battery................987
  CAN Data Link Circuit - Test................989
  CID 0001 FMI 11 Cylinder #1 Injector fault................1000
  CID 0002 FMI 11 Cylinder #2 Injector fault................1001
  CID 0003 FMI 11 Cylinder #3 Injector fault................1002
  CID 0004 FMI 11 Cylinder #4 Injector fault................1003
  CID 0005 FMI 11 Cylinder #5 Injector fault................1004
  CID 0006 FMI 11 Cylinder #6 Injector fault................1005
  CID 0041 FMI 03 8 Volt DC Supply short to +batt................1006
  CID 0041 FMI 04 8 Volt DC Supply short to ground................1007
  CID 0091 FMI 08 Throttle Position signal abnormal................1008
  CID 0091 FMI 13 Throttle Position calibration required................1009
  CID 0094 FMI 04 Fuel Pressure short to ground................1010
  CID 0096 FMI 03 Fuel Level Sensor open_short to +batt................1011
  CID 0096 FMI 04 Fuel Level Sensor short to ground................1012
  CID 0100 FMI 03 Engine Oil Pressure open_short to +batt................1013
  CID 0100 FMI 04 Engine Oil Pressure short to ground................1014
  CID 0102 FMI 03 Boost Pressure Sensor short to +batt................1015
  CID 0102 FMI 04 Boost Pressure Sensor short to ground................1016
  CID 0105 FMI 03 Inlet Manifold Temp Sensor open_short to +batt................1017
  CID 0105 FMI 04 Inlet Manifold Temp Sensor short to ground................1018
  CID 0110 FMI 03 Engine Coolant Temperature open_short to +batt................1019
  CID 0110 FMI 04 Engine Coolant Temperature short to ground................1020
  CID 0127 FMI 03 Transmission Oil Pressure open_short to +batt................1021
  CID 0127 FMI 04 Transmission Oil Pressure short to ground................1022
  CID 0168 FMI 02 System Voltage intermittent_erratic................1023
  CID 0174 FMI 04 Fuel Temperature short to ground................1024
  CID 0177 FMI 03 Transmission Oil Temperature open_short to +batt................1025
  CID 0177 FMI 04 Transmission Oil Temperature short to ground................1026
  CID 0253 FMI 02 Personality Module mismatch................1027
  CID 0261 FMI 13 Engine Timing Calibration required................1029
  CID 0262 FMI 03 5 Volt Sensor DC Power Supply short to +batt................1030
  CID 0262 FMI 04 5 Volt Sensor DC Power Supply short to ground................1031
  CID 0268 FMI 02 Check Programmable Parameters................1032
  CID 0320 FMI 02 Speed_Timing Sensor Loss of Signal................1034
  CID 0320 FMI 11 Speed_Timing Sensor mechanical failure................1035
  CID 0342 FMI 02 Loss of Secondary Engine Speed signal................1036
  CID 0342 FMI 11 Secondary Engine Speed Sensor mechanical failure................1037
  CID 1249 FMI 08 Secondary Throttle Position signal abnormal................1038
  CID 1249 FMI 13 Secondary Throttle Position calibration required................1039
  Can Not Reach Top Engine RPM................1048
  Cat Data Link Circuit - Test................1051
  Coolant Level Sensor Circuit - Test................1061
  Coolant Temperature Is Too High................1071
  Coolant in Engine Oil................1074
  Customer Passwords................1077
  Diagnostic Code Cross Reference................1078
  Diagnostic Codes................1081
  Digital Sensor Supply Circuit - Test................1084
  E015 High Engine Coolant Temperature Derate................1100
  E017 High Engine Coolant Temperature Warning................1106
  E025 High Inlet Air Temperature Derate................1109
  E027 High Inlet Air Temperature Warning................1111
  E030 High Transmission Oil Temperature Warning................1113
  E039 Low Engine Oil Pressure Derate................1114
  E053 Low Fuel Pressure Warning................1116
  E056 High Fuel Temperature Warning................1118
  E057 Low Engine Coolant Level Derate................1120
  E059 Low Engine Coolant Level Warning................1122
  E096 High Fuel Pressure................1124
  E100 Low Engine Oil Pressure Warning................1126
  E113 High Transmission Oil Pressure................1128
  E119 Low Fuel Level................1129
  E190 Engine Overspeed Warning................1130
  E268 Unexpected Engine Shutdown................1131
  ECM Will Not Accept Factory Passwords................1168
  ECM Will Not Communicate with Other Systems or Display Modules................1170
  Electrical Power Supply Circuit - Test................1171
  Electronic Service Tool Will Not Communicate with ECM................1179
  Electronic Service Tools................1183
  Engine Cranks but Will Not Start................1186
  Engine Has Early Wear................1189
  Engine Misfires, Runs Rough or Is Unstable................1192
  Engine Oil Temperature Is Too High................1196
  Engine Oil in Cooling System................1198
  Engine Oil in Exhaust System................1200
  Engine Pressure Sensor Open or Short Circuit - Test................1202
  Engine Speed_Timing Sensor - Calibrate................1210
  Engine Speed_Timing Sensor Circuit - Test................1217
  Engine Stalls at Low RPM................1228
  Engine Synchronize Switch Circuit - Test................1231
  Engine Temperature Sensor Open or Short Circuit - Test................1242
  Engine Vibration................1253
  Engine Will Not Crank................1255
  Engine Wiring Information................1258
  Event Codes................1265
  Excessive Black Smoke................1271
  Excessive Engine Oil Consumption................1274
  Excessive Fuel Consumption................1276
  Excessive Valve Lash................1280
  Excessive White Smoke................1282
  Exhaust Temperature Is Too High................1287
  Factory Passwords................1289
  Flash Codes................1290
  Flash Programming................1291
  Fuel Dilution of Engine Oil................1293
  Fuel Level Sensor Circuit - Test................1296
  Fuel in Cooling System................1307
  Indicator Lamp Circuit - Test................1309
  Injector Code - Calibrate................1319
  Injector Solenoid Circuit - Test................1326
  Intermittent Engine Shutdown................1336
  Intermittent Low Power or Power Cutout................1338
  Low Engine Oil Pressure................1341
  Mechanical Noise (Knock) in Engine................1345
  Noise Coming from Cylinder................1348
  Poor Acceleration or Response................1351
  Poor or No Response to Throttle................1356
  Programming Parameters................1359
  Replacing the ECM................1364
  Self-Diagnostics................1368
  Sensors and Electrical Connectors................1370
  Service Information Report................1377
  Switch Circuits - Test................1391
  System Configuration Parameters................1403
  System Overview................1414
  Throttle Position Sensor - Calibrate................1417
  Throttle Position Sensor Circuit - Test................1420
  Transmission Oil Temperature Sensor Open or Short Circuit - Test................1431
  short to +batt................1442
SENR9646 - Troubleshooting (3406E; C12; C15 & C18 Marine Engines)................1444
  Alternator................1444
  Analog Sensor Supply Circuit - Test................1455
  Battery................1466
  CAN Data Link Circuit - Test................1468
  CID 0001 FMI 11 Cylinder #1 Injector fault................1479
  CID 0002 FMI 11 Cylinder #2 Injector fault................1480
  CID 0003 FMI 11 Cylinder #3 Injector fault................1481
  CID 0004 FMI 11 Cylinder #4 Injector fault................1482
  CID 0005 FMI 11 Cylinder #5 Injector fault................1483
  CID 0006 FMI 11 Cylinder #6 Injector fault................1484
  CID 0041 FMI 03 8 Volt DC Supply short to +batt................1485
  CID 0041 FMI 04 8 Volt DC Supply short to ground................1486
  CID 0091 FMI 08 Throttle Position signal abnormal................1487
  CID 0091 FMI 13 Throttle Position calibration required................1488
  CID 0094 FMI 04 Fuel Pressure short to ground................1489
  CID 0096 FMI 03 Fuel Level Sensor open_short to +batt................1490
  CID 0096 FMI 04 Fuel Level Sensor short to ground................1491
  CID 0100 FMI 03 Engine Oil Pressure open_short to +batt................1492
  CID 0100 FMI 04 Engine Oil Pressure short to ground................1493
  CID 0102 FMI 03 Boost Pressure Sensor short to +batt................1494
  CID 0102 FMI 04 Boost Pressure Sensor short to ground................1495
  CID 0105 FMI 03 Inlet Manifold Temp Sensor open_short to +batt................1496
  CID 0105 FMI 04 Inlet Manifold Temp Sensor short to ground................1497
  CID 0110 FMI 03 Engine Coolant Temperature open_short to +batt................1498
  CID 0110 FMI 04 Engine Coolant Temperature short to ground................1499
  CID 0127 FMI 03 Transmission Oil Pressure open_short to +batt................1500
  CID 0127 FMI 04 Transmission Oil Pressure short to ground................1501
  CID 0168 FMI 02 System Voltage intermittent_erratic................1502
  CID 0174 FMI 04 Fuel Temperature short to ground................1503
  CID 0177 FMI 03 Transmission Oil Temperature open_short to +batt................1504
  CID 0177 FMI 04 Transmission Oil Temperature short to ground................1505
  CID 0253 FMI 02 Personality Module mismatch................1506
  CID 0261 FMI 13 Engine Timing Calibration required................1508
  CID 0262 FMI 03 5 Volt Sensor DC Power Supply short to +batt................1509
  CID 0262 FMI 04 5 Volt Sensor DC Power Supply short to ground................1510
  CID 0268 FMI 02 Check Programmable Parameters................1511
  CID 0320 FMI 02 Speed_Timing Sensor Loss of Signal................1513
  CID 0320 FMI 11 Speed_Timing Sensor mechanical failure................1514
  CID 0342 FMI 02 Loss of Secondary Engine Speed signal................1515
  CID 0342 FMI 11 Secondary Engine Speed Sensor mechanical failure................1516
  CID 1249 FMI 08 Secondary Throttle Position signal abnormal................1517
  CID 1249 FMI 13 Secondary Throttle Position calibration required................1518
  Can Not Reach Top Engine RPM................1527
  Cat Data Link Circuit - Test................1530
  Coolant Level Sensor Circuit - Test................1540
  Coolant Temperature Is Too High................1550
  Coolant in Engine Oil................1553
  Customer Passwords................1556
  Diagnostic Code Cross Reference................1557
  Diagnostic Codes................1560
  Digital Sensor Supply Circuit - Test................1563
  E015 High Engine Coolant Temperature Derate................1579
  E017 High Engine Coolant Temperature Warning................1585
  E025 High Inlet Air Temperature Derate................1588
  E027 High Inlet Air Temperature Warning................1590
  E030 High Transmission Oil Temperature Warning................1592
  E039 Low Engine Oil Pressure Derate................1593
  E053 Low Fuel Pressure Warning................1595
  E056 High Fuel Temperature Warning................1597
  E057 Low Engine Coolant Level Derate................1599
  E059 Low Engine Coolant Level Warning................1601
  E096 High Fuel Pressure................1603
  E100 Low Engine Oil Pressure Warning................1605
  E113 High Transmission Oil Pressure................1607
  E119 Low Fuel Level................1608
  E190 Engine Overspeed Warning................1609
  E268 Unexpected Engine Shutdown................1610
  ECM Will Not Accept Factory Passwords................1647
  ECM Will Not Communicate with Other Systems or Display Modules................1649
  Electrical Power Supply Circuit - Test................1650
  Electronic Service Tool Will Not Communicate with ECM................1658
  Electronic Service Tools................1662
  Engine Cranks but Will Not Start................1665
  Engine Has Early Wear................1668
  Engine Misfires, Runs Rough or Is Unstable................1671
  Engine Oil Temperature Is Too High................1675
  Engine Oil in Cooling System................1677
  Engine Oil in Exhaust System................1679
  Engine Pressure Sensor Open or Short Circuit - Test................1681
  Engine Speed_Timing Sensor - Calibrate................1689
  Engine Speed_Timing Sensor Circuit - Test................1696
  Engine Stalls at Low RPM................1707
  Engine Synchronize Switch Circuit - Test................1710
  Engine Temperature Sensor Open or Short Circuit - Test................1721
  Engine Vibration................1732
  Engine Will Not Crank................1734
  Engine Wiring Information................1737
  Event Codes................1744
  Excessive Black Smoke................1750
  Excessive Engine Oil Consumption................1753
  Excessive Fuel Consumption................1755
  Excessive Valve Lash................1759
  Excessive White Smoke................1761
  Exhaust Temperature Is Too High................1766
  Factory Passwords................1768
  Flash Codes................1769
  Flash Programming................1770
  Fuel Dilution of Engine Oil................1772
  Fuel Level Sensor Circuit - Test................1775
  Fuel in Cooling System................1786
  Indicator Lamp Circuit - Test................1788
  Injector Code - Calibrate................1798
  Injector Solenoid Circuit - Test................1805
  Intermittent Engine Shutdown................1815
  Intermittent Low Power or Power Cutout................1817
  Low Engine Oil Pressure................1820
  Mechanical Noise (Knock) in Engine................1824
  Noise Coming from Cylinder................1827
  Poor Acceleration or Response................1830
  Poor or No Response to Throttle................1835
  Programming Parameters................1838
  Replacing the ECM................1843
  Self-Diagnostics................1847
  Sensors and Electrical Connectors................1849
  Service Information Report................1856
  Switch Circuits - Test................1870
  System Configuration Parameters................1882
  System Overview................1893
  Throttle Position Sensor - Calibrate................1896
  Throttle Position Sensor Circuit - Test................1899
  Transmission Oil Temperature Sensor Open or Short Circuit - Test................1910
  short to +batt................1921
SENR9672 - Specifications (3406E and C15 Marine Engines)................1923
  Air Starting Motor Pressure Regulating Valve................1923
  Alternator and Regulator................1925
  Atmospheric Pressure Sensor................1933
  Auxiliary Water Pump................1934
  Belt Tension Chart................1938
  Boost Pressure Sensor................1940
  Camshaft................1941
  Circuit Breakers................1944
  Connecting Rod Bearing Journal................1945
  Connecting Rod................1946
  Coolant Temperature Sensor................1949
  Cylinder Block................1950
  Cylinder Head Valves................1956
  Cylinder Head................1961
  Cylinder Liner................1965
  Electric Starting Motor................1967
  Electronic Unit Injector Mechanism................1986
  Electronic Unit Injector Rocker Arm................1988
  Engine Design................1989
  Engine Oil Filter Base................1991
  Engine Oil Pan................1995
  Engine Oil Pressure Sensor................1999
  Engine Oil Pressure................2000
  Engine Oil Pump................2002
  Exhaust Manifold................2004
  Flywheel Housing................2006
  Flywheel................2008
  Front Housing and Covers................2010
  Fuel Filter Base................2012
  Fuel Temperature Sensor................2013
  Fuel Transfer Pump................2014
  Gear Group (Front)................2016
  Heat Exchanger................2020
  Housing (Front)................2022
  Inlet Air Temperature Sensor................2024
  Magnetic Pickup................2025
  Main Bearing Journal................2026
  Piston and Rings................2028
  Speed_Timing Sensor................2030
  Tachometer Calibration Chart................2032
  Tachometer................2033
  Turbocharger................2035
  Valve Mechanism Cover................2037
  Valve Mechanism................2039
  Water Pump................2041
  Water Temperature Regulator................2043
SENR9673 - Systems Operation (3406E and C15 Marine Engines)................2044
  Air Inlet and Exhaust System................2044
  Basic Engine................2049
  Closed Crankcase Ventilation (CCV) System................2051
  Cooling System................2053
  Electrical System................2056
  Electronic Control System Components................2061
  Fuel System................2063
  General Information................2073
  Lubrication System................2077
SENR9673 - Testing & Adjusting (3406E and C15 Marine Engines)................2082
  Air in Fuel - Test................2082
  Battery - Test................2085
  Charging System - Test................2086
  Compression - Test................2087
  Connecting Rod Bearings - Inspect................2088
  Cooling System - Check - Overheating................2089
  Cooling System - Inspect................2094
  Cooling System - Test................2095
  Cylinder Block - Inspect................2104
  Electric Starting System - Test................2105
  Electronic Unit Injector - Adjust................2106
  Electronic Unit Injector - Test................2110
  Engine Crankcase Pressure (Blowby) - Test................2112
  Engine Oil Pressure - Test................2114
  Engine Oil Pump - Inspect................2121
  Engine Valve Lash - Inspect_Adjust................2122
  Excessive Bearing Wear - Inspect................2126
  Excessive Engine Oil Consumption - Inspect................2127
  Exhaust Temperature - Test................2128
  Finding Top Center Position for No. 1 Piston................2129
  Flywheel - Inspect................2133
  Fuel Quality - Test................2136
  Fuel System - Inspect................2138
  Fuel System Pressure - Test................2139
  Gear Group (Front) - Time................2142
  Increased Engine Oil Temperature - Inspect................2150
  Inlet Manifold Pressure - Test................2151
  Main Bearings - Inspect................2154
  Pinion Clearance - Adjust................2155
  Piston Ring Groove - Inspect................2158
  Turbocharger - Inspect................2159
  Vibration Damper - Check................2162
  Water Pump - Test................2165
  Water Temperature Regulator - Test................2168
UENR3959 - Systems Operation (Marine Engine Control Panel I)................2170
  Diagnostics................2171
  Dimensions................2174
  Display Navigation................2177
  Display Screens................2179
  Display Setup................2182
  Electrical Connections................2196
  Engine Control................2199
  Flash Programming................2201
  General Information................2215
  Parameters................2217
  Service Support Information................2221
  System Protection Functions................2226
  Wiring Diagrams................2228
 
Caterpillar 3406E and C15 Marine Engines Workshop Service Repair Manuals