2006 INFINITI M35 relay

BRC-40
[VDC/TCS/ABS]
TROUBLE DIAGNOSIS
Revision: 2006 January2006 M35/M45
Inspection 6: Solenoid, VDC Change-Over Valve and Actuator Relay CircuitNFS000QQ
INSPECTION PROCEDURE
1. CHECK SELF-DIAGNOSIS RESULTS
Check self-diagnosis results.
Is above displayed on the self-diagnosis display?
YES >> GO TO 2.
NO >> INSPECTION END
2. CHECK CONNECTOR
1. Turn ignition switch OFF and disconnect ABS actuator and electric unit (control unit) connector E30,
check terminal for deformation, disconnection, looseness, and so on. If any malfunction is found, repair or
replace terminal.
2. Reconnect connector and perform self-diagnosis.
OK or NG
OK >> INSPECTION END
NG >> GO TO 3.
3. CHECK SOLENOID, VDC CHANGE-OVER VALVE AND ACTUATOR RELAY POWER SUPPLY CIR-
CUIT
1. Turn ignition switch OFF and disconnect ABS actuator and electric unit (control unit) connector E30.
2. Check voltage between ABS actuator and electric unit (control
unit) harness connector E30 terminal 3 and ground.
Self-diagnosis results
FR RH IN ABS SOL
FR RH OUT ABS SOL
FR LH IN ABS SOL
FR LH OUT ABS SOL
RR RH IN ABS SOL
RR RH OUT ABS SOL
RR LH IN ABS SOL
RR LH OUT ABS SOL
USV LINE [FL-RR]
USV LINE [FR-RL]
HSV LINE [FL-RR]
HSV LINE [FR-RL]
MAIN RELAY
SFIA3035E
ABS actuator and electric unit (control unit) Ground Voltage
3 — Battery voltage (Approx. 12 V)

TROUBLE DIAGNOSIS
BRC-41
[VDC/TCS/ABS]
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BRC
Revision: 2006 January2006 M35/M45
OK or NG
OK >> GO TO 4.
NG >>
Repair or replace malfunctioning components.
Perform the self-diagnosis, and make sure that the result shows NO DTC IS DETECTED.
4. CHECK SOLENOID, VDC CHANGE-OVER VALVE, ACTUATOR RELAY GROUND CIRCUIT
Check continuity between ABS actuator and electric unit (control
unit) harness connector E30 terminal 1, 4 and ground.
OK or NG
OK >>Replace ABS actuator and electric unit (control unit).
Perform the self-diagnosis, and make sure that the result shows NO DTC IS DETECTED.
NG >>
Repair or replace malfunctioning components.
Perform the self-diagnosis, and make sure that the result shows NO DTC IS DETECTED.
Inspection 7: Pressure Sensor CircuitNFS000QR
INSPECTION PROCEDURE
1. CHECK SELF-DIAGNOSIS RESULTS
Check self-diagnosis results.
Is above displayed on the self-diagnosis display?
YES >>Replace ABS actuator and electric unit (control unit).
Perform the self-diagnosis, and make sure that the result shows NO DTC IS DETECTED.
NO >> INSPECTION END
Inspection 8: Steering Angle Sensor CircuitNFS000QS
INSPECTION PROCEDURE
1. CHECK SELF-DIAGNOSIS RESULTS
Check self-diagnosis results.
Is above displayed on the self-diagnosis display?
YES >> GO TO 2.
NO >> INSPECTION END
SFIA3033E
ABS actuator and electric unit (control unit) Ground Continuity
1, 4 — Yes
Self-diagnosis results
PRESS SEN CIRCUIT
Self-diagnosis results
ST ANG SEN CIRCUIT

EC-6Revision: 2006 January2006 M35/M45 On Board Diagnosis Logic ....................................533
DTC Confirmation Procedure ...............................533
Diagnostic Procedure ...........................................534
Removal and Installation ......................................534
DTC P1226 TP SENSOR ........................................535
Component Description ........................................535
On Board Diagnosis Logic ....................................535
DTC Confirmation Procedure ...............................535
Diagnostic Procedure ...........................................536
Removal and Installation ......................................536
DTC P1550 BATTERY CURRENT SENSOR ..........537
Component Description ........................................537
CONSULT-II Reference Value in Data Monitor Mode
.537
On Board Diagnosis Logic ....................................537
DTC Confirmation Procedure ...............................538
Wiring Diagram .....................................................539
Diagnostic Procedure ...........................................540
Component Inspection ..........................................542
D T C P 1 5 5 1 , P 1 5 5 2 B A T T E R Y C U R R E N T S E N S O R .543
Component Description ........................................543
CONSULT-II Reference Value in Data Monitor Mode
.543
On Board Diagnosis Logic ....................................543
DTC Confirmation Procedure ...............................544
Wiring Diagram .....................................................545
Diagnostic Procedure ...........................................546
Component Inspection ..........................................548
DTC P1553 BATTERY CURRENT SENSOR ..........549
Component Description ........................................549
CONSULT-II Reference Value in Data Monitor Mode
.549
On Board Diagnosis Logic ....................................549
DTC Confirmation Procedure ...............................550
Wiring Diagram .....................................................551
Diagnostic Procedure ...........................................552
Component Inspection ..........................................554
DTC P1554 BATTERY CURRENT SENSOR ..........555
Component Description ........................................555
CONSULT-II Reference Value in Data Monitor Mode
.555
On Board Diagnosis Logic ....................................555
Overall Function Check ........................................556
Wiring Diagram .....................................................557
Diagnostic Procedure ...........................................558
Component Inspection ..........................................560
DTC P1564 ICC STEERING SWITCH ....................561
Component Description ........................................561
CONSULT-II Reference Value in Data Monitor Mode
.561
On Board Diagnosis Logic ....................................561
DTC Confirmation Procedure ...............................562
Wiring Diagram ................................................
.....563
Diagnostic Procedure ...........................................564
Component Inspection ..........................................567
DTC P1564 ASCD STEERING SWITCH ................568
Component Description ........................................568
CONSULT-II Reference Value in Data Monitor Mode
.568On Board Diagnosis Logic ....................................568
DTC Confirmation Procedure ................................569
Wiring Diagram .....................................................570
Diagnostic Procedure ............................................571
Component Inspection ..........................................574
DTC P1568 ICC FUNCTION ...................................575
On Board Diagnosis Logic ....................................575
DTC Confirmation Procedure ................................575
Diagnostic Procedure ............................................575
DTC P1572 ICC BRAKE SWITCH ..........................576
Component Description ........................................576
CONSULT-II Reference Value in Data Monitor Mode
.576
On Board Diagnosis Logic ....................................576
DTC Confirmation Procedure ................................577
Wiring Diagram .....................................................578
Diagnostic Procedure ............................................579
Component Inspection ..........................................584
DTC P1572 ASCD BRAKE SWITCH ......................585
Component Description ........................................585
CONSULT-II Reference Value in Data Monitor Mode
.585
On Board Diagnosis Logic ....................................585
DTC Confirmation Procedure ................................586
Wiring Diagram .....................................................587
Diagnostic Procedure ............................................588
Component Inspection ..........................................592
DTC P1574 ICC VEHICLE SPEED SENSOR .........593
Component Description ........................................593
On Board Diagnosis Logic ....................................593
DTC Confirmation Procedure ................................593
Diagnostic Procedure ............................................594
DTC P1574 ASCD VEHICLE SPEED SENSOR .....595
Component Description ........................................595
On Board Diagnosis Logic ....................................595
DTC Confirmation Procedure ................................595
Diagnostic Procedure ............................................596
DTC P1715 INPUT SPEED SENSOR (TURBINE
REVOLUTION SENSOR) ........................................597
Description ............................................................597
CONSULT-II Reference Value in Data Monitor Mode
.597
On Board Diagnosis Logic ....................................597
Diagnostic Procedure ..........................................
..597
DTC P1805 BRAKE SWITCH .................................598
Component Description ........................................598
CONSULT-II Reference Value in Data Monitor Mode
.598
On Board Diagnosis Logic ....................................598
DTC Confirmation Procedure ................................599
Wiring Diagram .....................................................600
Diagnostic Procedure ............................................601
Component Inspection ..........................................606
DTC P2100, P2103 THROTTLE CONTROL MOTOR
RELAY .....................................................................607
Component Description ........................................607
CONSULT-II Reference Value in Data Monitor Mode
.607
On Board Diagnosis Logic ....................................607

EC-14Revision: 2006 January2006 M35/M45 Wiring Diagram ....................................................1325
Diagnostic Procedure ..........................................1326
Component Inspection .........................................1327
Removal and Installation .....................................1328
DTC P1805 BRAKE SWITCH ................................1329
Component Description .......................................1329
CONSULT-II Reference Value in Data Monitor Mode
1329
On Board Diagnosis Logic ...................................1329
DTC Confirmation Procedure ..............................1330
Wiring Diagram ....................................................1331
Diagnostic Procedure ..........................................1332
Component Inspection .........................................1337
DTC P2100, P2103 THROTTLE CONTROL MOTOR
RELAY ....................................................................1338
Component Description .......................................1338
CONSULT-II Reference Value in Data Monitor Mode
1338
On Board Diagnosis Logic ...................................1338
DTC Confirmation Procedure ..............................1338
Wiring Diagram ....................................................1340
Diagnostic Procedure ..........................................1341
DTC P2101 ELECTRIC THROTTLE CONTROL
FUNCTION .............................................................1344
Description ...........................................................1344
On Board Diagnosis Logic ...................................1344
DTC Confirmation Procedure ..............................1344
Wiring Diagram ....................................................1345
Diagnostic Procedure ..........................................1346
Component Inspection .........................................1350
Removal and Installation .....................................1350
DTC P2118 THROTTLE CONTROL MOTOR ........1351
Component Description .......................................1351
On Board Diagnosis Logic ...................................1351
DTC Confirmation Procedure ..............................1351
Wiring Diagram ....................................................1352
Diagnostic Procedure ..........................................1353
Component Inspection .........................................1354
Removal and Installation .....................................1355
DTC P2119 ELECTRIC THROTTLE CONTROL
ACTUATOR ............................................................1356
Component Description .......................................1356
On Board Diagnosis Logic ...................................1356
DTC Confirmation Procedure ..............................1356
Diagnostic Procedure ..........................................1357
DTC P2122, P2123 APP SENSOR ........................1358
Component Description .......................................1358
CONSULT-II Reference Value in Data Monitor Mode
1358
On Board Diagnosis Logic ...................................1358
DTC Confirmation Procedure ..............................1359
Wiring Diagram ....................................................1360
Diagnostic Procedure ..........................................1361
Component Inspection .........................................1363
Removal and Installation .....................................1364
DTC P2127, P2128 APP SENSOR ........................1365
Component Description .......................................1365
CONSULT-II Reference Value in Data Monitor Mode
1365On Board Diagnosis Logic ...................................1365
DTC Confirmation Procedure ...............................1366
Wiring Diagram ....................................................1367
Diagnostic Procedure ........................................... 1368
Component Inspection .........................................1371
Removal and Installation ......................................1371
DTC P2135 TP SENSOR .......................................1372
Component Description .......................................1372
CONSULT-II Reference Value in Data Monitor Mode
1372
On Board Diagnosis Logic ...................................1372
DTC Confirmation Procedure ...............................1373
Wiring Diagram ....................................................1374
Diagnostic Procedure ........................................... 1375
Component Inspection .........................................1378
Removal and Installation ......................................1378
DTC P2138 APP SENSOR .....................................1379
Component Description .......................................1379
CONSULT-II Reference Value in Data Monitor Mode
1379
On Board Diagnosis Logic ...................................1379
DTC Confirmation Procedure ...............................1380
Wiring Diagram ....................................................1381
Diagnostic Procedure ........................................... 1382
Component Inspection .........................................1386
Removal and Installation ......................................1386
DTC P2A00, P2A03 A/F SENSOR 1 ......................1387
Component Description .......................................1387
CONSULT-II Reference Value in Data Monitor Mode
1387
On Board Diagnosis Logic ...................................1387
DTC Confirmation Procedure ...............................1387
Wiring Diagram ....................................................1389
Diagnostic Procedure ........................................... 1392
Removal and Installation ......................................1397
VARIABLE INDUCTION AIR CONTROL SYSTEM
(VIAS) .....................................................................1398
Description ...........................................................1398
CONSULT-II Reference Value in Data Monitor Mode
1399
Wiring Diagram ....................................................1400
Diagnostic Procedure ...........................................
1402
Component Inspection .........................................1405
Removal and Installation ......................................1406
IGNITION SIGNAL .................................................1407
Component Description .......................................1407
Wiring Diagram ....................................................1408
Diagnostic Procedure ........................................... 1413
Component Inspection .........................................1417
Removal and Installation ......................................1419
FUEL INJECTOR ....................................................1420
Component Description .......................................1420
CONSULT-II Reference Value in Data Monitor Mode
1420
Wiring Diagram ....................................................1421
Diagnostic Procedure ........................................... 1422
Component Inspection .........................................1426
Removal and Installation ......................................1426

AIR CONDITIONING CUT CONTROL
EC-35
[VQ35DE]
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EC
Revision: 2006 January2006 M35/M45
AIR CONDITIONING CUT CONTROLPFP:23710
Input/Output Signal ChartNBS004S6
*1: This signal is sent to the ECM through CAN communication line.
*2: ECM determines the start signal status by the signals of engine speed and battery voltage.
System DescriptionNBS004S7
This system improves engine operation when the air conditioner is used.
Under the following conditions, the air conditioner is turned off.
When the accelerator pedal is fully depressed.
When cranking the engine.
At high engine speeds.
When the engine coolant temperature becomes excessively high.
When operating power steering during low engine speed or low vehicle speed.
When engine speed is excessively low.
When refrigerant pressure is excessively low or high.
Sensor Input Signal to ECM ECM function Actuator
Air conditioner switch*
1Air conditioner ON signal
Air conditioner
cut controlAir conditioner relay Accelerator pedal position sensor Accelerator pedal position
Crankshaft position sensor (POS)
Camshaft position sensor (PHASE)Engine speed*
2
Engine coolant temperature sensor Engine coolant temperature
Battery
Battery voltage*
2
Refrigerant pressure sensor Refrigerant pressure
Power steering pressure sensor Power steering operation
Wheel sensor*
1Vehicle speed

ON BOARD REFUELING VAPOR RECOVERY (ORVR)
EC-49
[VQ35DE]
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EC
Revision: 2006 January2006 M35/M45
7. CHECK REFUELING EVAP VAPOR CUT VALVE
Refer to EC-49, "
Component Inspection" .
OK or NG
OK >> GO TO 8.
NG >> Replace refueling EVAP vapor cut valve with fuel tank.
8. CHECK FUEL FILLER TUBE
Check filler neck tube and hose connected to the fuel tank for clogging, dents and cracks.
OK or NG
OK >> GO TO 9.
NG >> Replace fuel filler tube.
9. CHECK ONE-WAY FUEL VALVE-I
Check one-way valve for clogging.
OK or NG
OK >> GO TO 10.
NG >> Repair or replace one-way fuel valve with fuel tank.
10. CHECK ONE-WAY FUEL VALVE-II
1. Make sure that fuel is drained from the tank.
2. Remove fuel filler tube and hose.
3. Check one-way fuel valve for operation as follows.
When a stick is inserted, the valve should open, when removing
stick it should close.
Do not drop any material into the tank.
OK or NG
OK >>INSPECTION END
NG >> Replace fuel filler tube or replace one-way fuel valve
with fuel tank.
Component InspectionNBS004SH
REFUELING EVAP VAPOR CUT VALVE
With CONSULT-II
1. Remove fuel tank. Refer to FL-10, "FUEL TANK" .
2. Drain fuel from the tank as follows:
a. Remove fuel feed hose located on the fuel gauge retainer.
b. Connect a spare fuel hose, one side to fuel gauge retainer where the hose was removed and the other
side to a fuel container.
c. Drain fuel using “FUEL PUMP RELAY” in “ACTIVE TEST” mode with CONSULT-II.
3. Check refueling EVAP vapor cut valve for being stuck to close as follows.
Blow air into the refueling EVAP vapor cut valve (from the end of EVAP/ORVR line hose), and check that
the air flows freely into the tank.
4. Check refueling EVAP vapor cut valve for being stuck to open as follows.
a. Connect vacuum pump to hose end.
b. Remove fuel gauge retainer with fuel gauge unit.
Always replace O-ring with new one.
c. Put fuel tank upside down.
SEF665U

TROUBLE DIAGNOSIS
EC-107
[VQ35DE]
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EC
Revision: 2006 January2006 M35/M45
*: With ICC models2
P0031 P0032 P0051 P0052 Air fuel ratio (A/F) sensor 1 heater
P0037 P0038 P0057 P0058 Heated oxygen sensor 2 heater
P0075 P0081 Intake valve timing control solenoid valve
P0130 P0131 P0132 P0133 P0150 P0151 P0152 P0153 P2A00 P2A03 Air fuel ratio (A/F) sensor 1
P0137 P0138 P0139 P0157 P0158 P0159 Heated oxygen sensor 2
P0441 EVAP control system purge flow monitoring
P0443 P0444 P0445 EVAP canister purge volume control solenoid valve
P0447 P0448 EVAP canister vent control valve
P0451 P0452 P0453 EVAP control system pressure sensor
P0550 Power steering pressure sensor
P0603 ECM power supply
P0710 P0717 P0720 P0725 P0740 P0744 P0745 P1705 P1715 P1730 P1752 P1754 P1757 P1759 P1762 P1764
P1767 P1769 P1772 P1774 A/T related sensors, solenoid valves and switches
P1217 Engine over temperature (OVERHEAT)
P1220 Fuel pump control module
P1805 Brake switch
P2100 P2103 Throttle control motor relay
P2101 Electric throttle control function
P2118 Throttle control motor
3
P0011 P0021 Intake valve timing control
P0171 P0172 P0174 P0175 Fuel injection system function
P0300 - P0306 Misfire
P0420 P0430 Three way catalyst function
P0442 P0456 EVAP control system (SMALL LEAK, VERY SMALL LEAK)
P0455 EVAP control system (GROSS LEAK)
P0506 P0507 Idle speed control system
P1148 P1168 Closed loop control
P1211 TCS control unit
P1212 TCS communication line
P1564 ICC steering switch / ASCD steering switch
P1568 ICC command value*
P1572 ICC brake switch / ASCD brake switch
P1574 ICC vehicle speed sensor / ASCD vehicle speed sensor
P2119 Electric throttle control actuator Priority Detected items (DTC)

EC-108
[VQ35DE]
TROUBLE DIAGNOSIS
Revision: 2006 January2006 M35/M45
Fail-Safe ChartNBS004T0
When the DTC listed below is detected, the ECM enters fail-safe mode and the MIL lights up.
When there is an open circuit on MIL circuit, the ECM cannot warn the driver by lighting up MIL when
there is malfunction on engine control system.
Therefore, when electrical controlled throttle and part of ECM related diagnoses are continuously detected
as NG for 5 trips, ECM warns the driver that engine control system malfunctions and MIL circuit is open by
means of operating fail-safe function.
The fail-safe function also operates when above diagnoses except MIL circuit are detected and demands
the driver to repair the malfunction.
DTC No. Detected items Engine operating condition in fail-safe mode
P0102
P0103Mass air flow sensor circuit Engine speed will not rise more than 2,400 rpm due to the fuel cut.
P0117
P0118Engine coolant tempera-
ture sensor circuitEngine coolant temperature will be determined by ECM based on the time after turning
ignition switch ON or START.
CONSULT-II displays the engine coolant temperature decided by ECM.
ConditionEngine coolant temperature decided
(CONSULT-II display)
Just as ignition switch is turned
ON or START40
C (104F)
More than approx. 4 minutes after
ignition ON or START80
C (176F)
Except as shown above40 - 80
C (104 - 176F)
(Depends on the time)
When the fail-safe system for engine coolant temperature sensor is activated, the cooling
fan operates while engine is running.
P0122
P0123
P0222
P0223
P2135Throttle position sensor The ECM controls the electric throttle control actuator in regulating the throttle opening in
order for the idle position to be within +10 degrees.
The ECM regulates the opening speed of the throttle valve to be slower than the normal
condition.
So, the acceleration will be poor.
P0643 Sensor power supply ECM stops the electric throttle control actuator control, throttle valve is maintained at a
fixed opening (approx. 5 degrees) by the return spring.
P2100
P2103Throttle control motor relay ECM stops the electric throttle control actuator control, throttle valve is maintained at a
fixed opening (approx. 5 degrees) by the return spring.
P2101 Electric throttle control
functionECM stops the electric throttle control actuator control, throttle valve is maintained at a
fixed opening (approx. 5 degrees) by the return spring.
P2118 Throttle control motor ECM stops the electric throttle control actuator control, throttle valve is maintained at a
fixed opening (approx. 5 degrees) by the return spring.
P2119 Electric throttle control
actuator(When electric throttle control actuator does not function properly due to the return spring
malfunction:)
ECM controls the electric throttle actuator by regulating the throttle opening around the
idle position. The engine speed will not rise more than 2,000 rpm.
(When throttle valve opening angle in fail-safe mode is not in specified range:)
ECM controls the electric throttle control actuator by regulating the throttle opening to 20
degrees or less.
(When ECM detects the throttle valve is stuck open:)
While the vehicle is driving, it slows down gradually by fuel cut. After the vehicle stops,
the engine stalls.
The engine can restart in N or P position, and engine speed will not exceed 1,000 rpm or
more.
P2122
P2123
P2127
P2128
P2138Accelerator pedal position
sensorThe ECM controls the electric throttle control actuator in regulating the throttle opening in
order for the idle position to be within +10 degrees.
The ECM regulates the opening speed of the throttle valve to be slower than the normal
condition.
So, the acceleration will be poor.
Engine operating condition in fail-safe mode Engine speed will not rise more than 2,500 rpm due to the fuel cut