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2016 Infinity Q70 Engine Control System
CONTENTS
VQ37VHR FOR USA AND CANADA
PRECAUTION .............................................30
PRECAUTIONS .................................................30
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ................................................................ 30
Precaution for Procedure without Cowl Top Cover
.... 30
Precautions for Removing Battery Terminal ..........30
On Board Diagnostic (OBD) System of Engine and A/T ................................................................... 31
General Precautions ..............................................32
PREPARATION ..........................................35
PREPARATION .................................................35
Special Service Tools .............................................35
Commercial Service Tools .....................................35
SYSTEM DESCRIPTION ............................37
COMPONENT PARTS ......................................37
ENGINE CONTROL SYSTEM ..................................37
ENGINE CONTROL SYSTEM : Component Parts
Location .................................................................. 37
ENGINE CONTROL SYSTEM : Component De- scription .................................................................. 40
INFINITI DRIVE MODE SELECTOR ........................41
Infiniti Drive Mode Selector : Component Parts Lo- cation ...................................................................... 42
Infiniti Drive Mode Selector : Component Descrip- tion ......................................................................... 42
Accelerator Pedal Position Sensor .........................43
Air Fuel Ratio Sensor 1 ..........................................43
Air Fuel Ratio Sensor 1 Heater ..............................43
ASCD Brake Switch ...............................................44
ASCD Indicator ...................................................... 44
ASCD Steering Switch ...........................................44
Revision: September 2015
| Battery Current Sensor (With Battery Tempera- | |
|---|---|
| ture Sensor) | ............................................................44 |
| Brake Switch | ...........................................................45 |
| Camshaft Position Sensor (PHASE) | ......................45 |
| Cooling Fan | ............................................................45 |
| Crankshaft Position Sensor (POS) | .........................46 |
| ECM | ........................................................................46 |
| Electric Throttle Control Actuator | ............................46 |
| Engine Coolant Temperature Sensor | .....................46 |
| Engine Oil Temperature Sensor .............................47 | |
| EVAP Canister Purge Volume Control Solenoid | |
| Valve | .......................................................................47 |
| EVAP Canister Vent Control Valve | .........................48 |
| EVAP Control System Pressure Sensor | .................48 |
| Fuel Injector | ............................................................48 |
| Fuel Level Sensor | ...................................................48 |
| Fuel Pump | ..............................................................48 |
| Fuel Tank Temperature Sensor | ..............................49 |
| Heated Oxygen Sensor 2 | .......................................49 |
| Heated Oxygen Sensor 2 Heater | ...........................49 |
| Ignition Coil | .............................................................50 |
| Intake Air Temperature Sensor | ..............................50 |
| Intake Valve Timing Control Solenoid Valve | ..........50 |
| ICC Brake Switch | ...................................................50 |
| ICC Steering Switch | ...............................................51 |
| Knock Sensor | .........................................................51 |
| Manifold Absolute Pressure Sensor | .......................51 |
| Malfunction Indicator Lamp | ....................................51 |
| Mass Air Flow Sensor | .............................................51 |
| Power Steering Pressure Sensor | ...........................51 |
| Refrigerant Pressure Sensor | ..................................52 |
| Throttle Control Motor | .............................................52 |
| Throttle Control Motor Relay | ..................................52 |
| Throttle Position Sensor | .........................................52 |
| VVEL Actuator Motor | ..............................................52 |
| VVEL Actuator Motor Relay | ....................................52 |
| VVEL Control Module | .............................................53 |
| VVEL Control Position Sensor | ................................53 |
| STRUCTURE AND OPERATION | .....................54 |
Table Caption: This table lists various automotive sensors and components, along with their corresponding page numbers in a manual or document.
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Table Caption: This table is an index or table of contents, listing various vehicle systems, their components, and corresponding page numbers, likely from a service or repair manual. It also includes sections on diagnostic systems, troubleshooting, and repair procedures.
Revision: September 2015
Table Caption: This table appears to be an index or table of contents for a vehicle service manual, detailing various additional services, power supply and ground circuit diagnostics, and specific diagnostic trouble codes (DTCs) with their corresponding page numbers.
Revision: September 2015
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Table Caption: This table appears to be an index or table of contents for a technical manual, listing various diagnostic trouble codes (DTCs) and associated component inspections, DTC logic, component function checks, and diagnosis procedures with corresponding page numbers.
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Table Caption: This table appears to be an index or table of contents for a technical manual, listing diagnostic trouble codes (DTCs) and associated procedures or information with corresponding page numbers.
**Table Caption: This table is a partial index or table of contents for a technical manual, listing diagnostic trouble codes (DTCs) with corresponding page numbers for their logic, diagnosis procedures, and component
