Infiniti QX56 (JA60). Manual — part 338
EC-4
Component Inspection . . . . . . . . . . ...
P0448 EVAP CANISTER VENT CONTROL
VALVE . . . . . . . . . . . . . . . .
Component Description . . . . . . . . . . .
On Board Diagnosis Logic . . . . . . . . . .
DTC Confirmation Procedure . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
Component Inspection . . . . . . . . . . ...
P0451 EVAP CONTROL SYSTEM PRES-
SURE SENSOR . . . . . . . . . . . ...
Component Description . . . . . . . . . . .
On Board Diagnosis Logic . . . . . . . . . .
DTC Confirmation Procedure . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
Component Inspection . . . . . . . . . . ...
P0452 EVAP CONTROL SYSTEM PRES-
SURE SENSOR . . . . . . . . . . . ...
Component Description . . . . . . . . . . .
On Board Diagnosis Logic . . . . . . . . . .
DTC Confirmation Procedure . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
Component Inspection . . . . . . . . . . ...
P0453 EVAP CONTROL SYSTEM PRES-
SURE SENSOR . . . . . . . . . . . ...
Component Description . . . . . . . . . . .
On Board Diagnosis Logic . . . . . . . . . .
DTC Confirmation Procedure . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
Component Inspection . . . . . . . . . . ...
P0455 EVAP CONTROL SYSTEM . . . . ..
On Board Diagnosis Logic . . . . . . . . . .
DTC Confirmation Procedure . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
Component Inspection . . . . . . . . . . ...
P0456 EVAP CONTROL SYSTEM . . . . ..
On Board Diagnosis Logic . . . . . . . . . .
DTC Confirmation Procedure . . . . . . . .
Overall Function Check . . . . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
Component Inspection . . . . . . . . . . ...
P0460 FUEL LEVEL SENSOR . . . . . .
Component Description . . . . . . . . . . .
On Board Diagnosis Logic . . . . . . . . . .
DTC Confirmation Procedure . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
P0461 FUEL LEVEL SENSOR . . . . . .
Component Description . . . . . . . . . . .
On Board Diagnosis Logic . . . . . . . . . .
Overall Function Check . . . . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
P0462, P0463 FUEL LEVEL SENSOR . . ...
Component Description . . . . . . . . . .
On Board Diagnosis Logic . . . . . . . . .
DTC Confirmation Procedure . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
P0500 VSS . . . . . . . . . . . . . .
Description . . . . . . . . . . . . . . .
On Board Diagnosis Logic . . . . . . . . .
DTC Confirmation Procedure . . . . . . . .
Overall Function Check . . . . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
P0506 ISC SYSTEM . . . . . . . . . . .
Description . . . . . . . . . . . . . . .
On Board Diagnosis Logic . . . . . . . . .
DTC Confirmation Procedure . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
P0507 ISC SYSTEM . . . . . . . . . . .
Description . . . . . . . . . . . . . . .
On Board Diagnosis Logic . . . . . . . . .
DTC Confirmation Procedure . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
P0550 PSP SENSOR . . . . . . . . . ...
Component Description . . . . . . . . . .
On Board Diagnosis Logic . . . . . . . . .
DTC Confirmation Procedure . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
Component Inspection . . . . . . . . . . ..
P0603 ECM POWER SUPPLY . . . . . . .
Component Description . . . . . . . . . .
On Board Diagnosis Logic . . . . . . . . .
DTC Confirmation Procedure . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
P0605 ECM . . . . . . . . . . . . . ...
Component Description . . . . . . . . . .
On Board Diagnosis Logic . . . . . . . . .
DTC Confirmation Procedure . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
P0607 ECM . . . . . . . . . . . . . ...
Description . . . . . . . . . . . . . . .
On Board Diagnosis Logic . . . . . . . . .
DTC Confirmation Procedure . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
P0643 SENSOR POWER SUPPLY . . . . ..
On Board Diagnosis Logic . . . . . . . . .
DTC Confirmation Procedure . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
P0850 PNP SWITCH . . . . . . . . . .
Component Description . . . . . . . . . .
On Board Diagnosis Logic . . . . . . . . .
DTC Confirmation Procedure . . . . . . . .
Overall Function Check . . . . . . . . . . .
EC-5
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P1140, P1145 IVT CONTROL POSITION
SENSOR . . . . . . . . . . . . . . ...
Component Description . . . . . . . . . . .
On Board Diagnosis Logic . . . . . . . . .
DTC Confirmation Procedure . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
Component Inspection . . . . . . . . . . ..
P1148, P1168 CLOSED LOOP CONTROL . .
On Board Diagnosis Logic . . . . . . . . .
P1211 TCS CONTROL UNIT . . . . . . ...
Description . . . . . . . . . . . . . . .
On Board Diagnosis Logic . . . . . . . . .
DTC Confirmation Procedure . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
P1212 TCS COMMUNICATION LINE . . . ..
Description . . . . . . . . . . . . . . .
On Board Diagnosis Logic . . . . . . . . .
DTC Confirmation Procedure . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
P1217 ENGINE OVER TEMPERATURE . . .
On Board Diagnosis Logic . . . . . . . . .
Overall Function Check . . . . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
Main 13 Causes of Overheating . . . . . . .
P1225 TP SENSOR . . . . . . . . . . ..
Component Description . . . . . . . . . . .
On Board Diagnosis Logic . . . . . . . . .
DTC Confirmation Procedure . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
P1226 TP SENSOR . . . . . . . . . . ..
Component Description . . . . . . . . . . .
On Board Diagnosis Logic . . . . . . . . .
DTC Confirmation Procedure . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
P1421 COLD START CONTROL . . . . . .
Description . . . . . . . . . . . . . . .
On Board Diagnosis Logic . . . . . . . . .
DTC Confirmation Procedure . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
P1550 BATTERY CURRENT SENSOR . . ...
Component Description . . . . . . . . . . .
On Board Diagnosis Logic . . . . . . . . .
DTC Confirmation Procedure . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
Component Inspection . . . . . . . . . . ..
P1551, P1552 BATTERY CURRENT SEN-
SOR . . . . . . . . . . . . . . . . ..
Component Description . . . . . . . . . . .
On Board Diagnosis Logic . . . . . . . . .
DTC Confirmation Procedure . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
Component Inspection . . . . . . . . . . ..
P1553 BATTERY CURRENT SENSOR . . ..
Component Description . . . . . . . . . . .
On Board Diagnosis Logic . . . . . . . . . .
DTC Confirmation Procedure . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
Component Inspection . . . . . . . . . . ...
P1554 BATTERY CURRENT SENSOR . . ..
Component Description . . . . . . . . . . .
On Board Diagnosis Logic . . . . . . . . . .
Overall Function Check . . . . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
Component Inspection . . . . . . . . . . ...
P1564 ICC STEERING SWITCH . . . . . .
Component Description . . . . . . . . . . .
On Board Diagnosis Logic . . . . . . . . . .
DTC Confirmation Procedure . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
Component Inspection . . . . . . . . . . ...
P1564 ASCD STEERING SWITCH . . . . .
Component Description . . . . . . . . . . .
On Board Diagnosis Logic . . . . . . . . . .
DTC Confirmation Procedure . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
Component Inspection . . . . . . . . . . ...
P1568 ICC FUNCTION . . . . . . . . .
On Board Diagnosis Logic . . . . . . . . . .
DTC Confirmation Procedure . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
P1572 ICC BRAKE SWITCH . . . . . . ..
Component Description . . . . . . . . . . .
On Board Diagnosis Logic . . . . . . . . . .
DTC Confirmation Procedure . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
Component Inspection . . . . . . . . . . ...
P1572 ASCD BRAKE SWITCH . . . . . ..
Component Description . . . . . . . . . . .
On Board Diagnosis Logic . . . . . . . . . .
DTC Confirmation Procedure . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
Component Inspection . . . . . . . . . . ...
P1574 ICC VEHICLE SPEED SENSOR . . .
Component Description . . . . . . . . . . .
On Board Diagnosis Logic . . . . . . . . . .
DTC Confirmation Procedure . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
P1574 ASCD VEHICLE SPEED SENSOR . .
Component Description . . . . . . . . . . .
On Board Diagnosis Logic . . . . . . . . . .
DTC Confirmation Procedure . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
P1805 BRAKE SWITCH . . . . . . . . .
EC-6
On Board Diagnosis Logic . . . . . . . . . .
DTC Confirmation Procedure . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
Component Inspection . . . . . . . . . . ...
P2100, P2103 THROTTLE CONTROL MO-
TOR RELAY . . . . . . . . . . . . . .
Component Description . . . . . . . . . . .
On Board Diagnosis Logic . . . . . . . . . .
DTC Confirmation Procedure . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
P2101 ELECTRIC THROTTLE CONTROL
FUNCTION . . . . . . . . . . . . . ...
Description . . . . . . . . . . . . . . . .
On Board Diagnosis Logic . . . . . . . . . .
DTC Confirmation Procedure . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
Component Inspection . . . . . . . . . . ...
P2118 THROTTLE CONTROL MOTOR . . ..
Component Description . . . . . . . . . . .
On Board Diagnosis Logic . . . . . . . . . .
DTC Confirmation Procedure . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
Component Inspection . . . . . . . . . . ...
P2119 ELECTRIC THROTTLE CONTROL
ACTUATOR . . . . . . . . . . . . . .
Component Description . . . . . . . . . . .
On Board Diagnosis Logic . . . . . . . . . .
DTC Confirmation Procedure . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
P2122, P2123 APP SENSOR . . . . . . ..
Component Description . . . . . . . . . . .
On Board Diagnosis Logic . . . . . . . . . .
DTC Confirmation Procedure . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
Component Inspection . . . . . . . . . . ...
P2127, P2128 APP SENSOR . . . . . . ..
Component Description . . . . . . . . . . .
On Board Diagnosis Logic . . . . . . . . . .
DTC Confirmation Procedure . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
Component Inspection . . . . . . . . . . ...
P2135 TP SENSOR . . . . . . . . . . .
Component Description . . . . . . . . . . .
On Board Diagnosis Logic . . . . . . . . . .
DTC Confirmation Procedure . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
Component Inspection . . . . . . . . . . ...
P2138 APP SENSOR . . . . . . . . . ..
Component Description . . . . . . . . . . .
On Board Diagnosis Logic . . . . . . . . . .
DTC Confirmation Procedure . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
Component Inspection . . . . . . . . . . ..
P2A00, P2A03 A/F SENSOR 1 . . . . . .
Component Description . . . . . . . . . .
On Board Diagnosis Logic . . . . . . . . .
DTC Confirmation Procedure . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
ASCD BRAKE SWITCH . . . . . . . . ...
Component Description . . . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
Component Inspection . . . . . . . . . . ..
ASCD INDICATOR . . . . . . . . . . ...
Component Description . . . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
COOLING FAN . . . . . . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
Component Inspection . . . . . . . . . . ..
ELECTRICAL LOAD SIGNAL . . . . . . ..
Description . . . . . . . . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
FUEL INJECTOR . . . . . . . . . . . ..
Component Description . . . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
Component Inspection . . . . . . . . . . ..
FUEL PUMP . . . . . . . . . . . . . .
Description . . . . . . . . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
Component Inspection . . . . . . . . . . ..
ICC BRAKE SWITCH . . . . . . . . . ...
Component Description . . . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
Component Inspection . . . . . . . . . . ..
IGNITION SIGNAL . . . . . . . . . . .
Component Description . . . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
Component Inspection . . . . . . . . . . ..
ON BOARD REFUELING VAPOR RECOV-
ERY (ORVR) . . . . . . . . . . . . . .
System Description . . . . . . . . . . . ...
Diagnosis Procedure . . . . . . . . . . . .
Component Inspection . . . . . . . . . . ..
POSITIVE CRANKCASE VENTILATION . . .
Description . . . . . . . . . . . . . . .
Component Inspection . . . . . . . . . . ..
REFRIGERANT PRESSURE SENSOR . . ...
Component Description . . . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . .
ECU DIAGNOSIS . . . . . . . . . ..
EC-7
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CONSULT-lll Reference Value in Data Monitor
Mode . . . . . . . . . . . . . . . . . .
ECM Harness Connector Terminal Layout . . ...
ECM Terminal and Reference Value . . . . .
Wiring Diagram - ENGINE CONTROL SYSTEM - ..
Fail-Safe Chart . . . . . . . . . . . . . ..
DTC Inspection Priority Chart . . . . . . . ...
DTC Index . . . . . . . . . . . . . . . .
Emission-related Diagnostic Information . . . ...
SYMPTOM DIAGNOSIS . . . . . . .
ENGINE CONTROL SYSTEM SYMPTOMS .
Symptom Matrix Chart . . . . . . . . . . ..
NORMAL OPERATING CONDITION . . . ...
Fuel Cut Control (at No Load and High Engine
Speed) . . . . . . . . . . . . . . . . ...
PRECAUTION . . . . . . . . . . .
PRECAUTIONS . . . . . . . . . . . .
On Board Diagnosis (OBD) System of Engine and
A/T . . . . . . . . . . . . . . . . . . .
Precaution . . . . . . . . . . . . . . . .
PREPARATION . . . . . . . . . . .
PREPARATION . . . . . . . . . . . .
Special Service Tool . . . . . . . . . . . .
Commercial Service Tool . . . . . . . . . ..
ON-VEHICLE MAINTENANCE . . . . ..
FUEL PRESSURE . . . . . . . . . . ...
Fuel Pressure Check . . . . . . . . . . . .
EVAP LEAK CHECK . . . . . . . . . ..
How to Detect Fuel Vapor Leakage . . . . . ...
ON-VEHICLE REPAIR . . . . . . . ...
EVAP CANISTER . . . . . . . . . . .
Removal and Installation . . . . . . . . . ...
Component Inspection . . . . . . . . . . ...
INTAKE VALVE TIMING CONTROL . . . ..
Intake Valve Timing Control Solenoid Valve (LH) ..
Intake Valve Timing Control Solenoid Valve (RH) ..
Intake Valve Timing Control Position Sensor (LH) ..
Intake Valve Timing Control Position Sensor (RH) ..
Camshaft Position Sensor (PHASE) . . . . . .
SERVICE DATA AND SPECIFICATIONS
(SDS) . . . . . . . . . . . . . . ..
SERVICE DATA AND SPECIFICATIONS
(SDS) . . . . . . . . . . . . . . . ...
Fuel Pressure . . . . . . . . . . . . . .
Idle Speed and Ignition Timing . . . . . . . ..
Calculated Load Value . . . . . . . . . . ..
Mass Air Flow Sensor . . . . . . . . . . .
Intake Air Temperature Sensor . . . . . . . .
Engine Coolant Temperature Sensor . . . . .
A/F Sensor 1 Heater . . . . . . . . . . . ..
Heated Oxygen sensor 2 Heater . . . . . . ...
Crankshaft Position Sensor (POS) . . . . . .
Camshaft Position Sensor (PHASE) . . . . . .
Throttle Control Motor . . . . . . . . . . .
Fuel Injector . . . . . . . . . . . . . . ...
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