Complete digital official shop manual contains service, maintenance, and troubleshooting information for the Infiniti Q70 (Y51) 2014-2016. Diagnostic and repair procedures are covered in great detail to repair, maintain, rebuild, refurbish or restore your vehicle like a professional mechanic in local service/repair workshop. This cost-effective quality manual is 100% complete and intact as should be without any missing pages. It is the same factory shop manual used by dealers that guaranteed to be fully functional to save your precious time.

This manual for Infiniti Q70 (Y51) 2014-2016 is divided into different sections. Each section covers a specific component or system and, in addition to the standard service procedures, includes disassembling, inspecting, and assembling instructions. 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. It is in the cross-platform PDF document format so that it works like a charm on all kinds of devices. You do not need to be skilled with a computer to use the manual.

EXCERPT:
SYSTEM
< SYSTEM DESCRIPTION > [AUTOMATIC AIR CONDITIONING]
AUTOMATIC AIR CONDITIONING SYSTEM : Air Flow Control INFOID:0000000011254832
DESCRIPTION
• A/C auto amp. changes gate voltage to power transistor and controls air flow in 31 stages based on target air flow. When air flow is to be increased, gate voltage to power transistor increases gradually for preventing excessive large amount of air flow.
• In addition to manual control and automatic control, air flow control is consist of low coolant temperature starting control, fan speed control at door motor operation and fan speed control at voice recognition.
AUTOMATIC AIR FLOW CONTROL
• A/C auto amp. decides target air flow depending on target air mix door opening angle.
• A/C auto amp. changes voltage to power transistor gate and controls air flow in 31 stages, so that target air flow is achieved.
• When air outlet is VENT or B/L, the minimum air flow is changed depending on sunload.
LOW COOLANT TEMPERATURE STARTING CONTROL
A/C auto amp. does not operate bower motor when engine coolant temperature is approximately 37°C (99°F) or less, for preventing a cold discharged air flow. After this, gate voltage applied to power transistor gradually, and blower motor operates.
FAN SPEED CONTROL AT DOOR MOTOR OPERATION
When mode door motor is activated while air flow is more than the specified value, A/C auto amp. reduces temporarily fan speed so that mode door moves smoothly.
FAN SPEED CONTROL AT VOICE RECOGNITION
When the voice control (voice command) switch is operated during air flow automatic control, A/C auto amp. decreases the air flow of the blower motor once and controls the air flow so as not to disturb the voice recognition function. This control continues while voice recognition function is operating.
AUTOMATIC AIR CONDITIONING SYSTEM : Air Inlet Control INFOID:0000000011254833
Intake door automatic control selects FRE, 20 – 80% FRE, or REC depending on a target air mix door opening angle.
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Infiniti Q70 (Y51) 2014-2016 Workshop Repair & Service Manual