2007 INFINITI M35 relay

TROUBLE DIAGNOSIS FOR SYSTEM
BRC-39
[VDC/TCS/ABS]
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BRC
Revision: 2007 April2007 M35/M45
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.
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”.
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
ABS actuator and electric unit (control unit) Ground Voltage
3—Battery Voltage
(Approx. 12 V)
SFIA3035E

BRC-40
[VDC/TCS/ABS]
TROUBLE DIAGNOSIS FOR SYSTEM
Revision: 2007 April2007 M35/M45
4. CHECK SOLENOID, VDC CHANGE-OVER VALVE, ACTUATOR RELAY GROUND CIRCUIT
Check continuity between ABS actuator and electric unit (control
unit) harness connector E30 terminals 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”.
Pressure Sensor CircuitNFS000QR
INSPECTION PROCEDURE
1. CHECK SELF-DIAGNOSTIC RESULTS
Check self-diagnosis results.
Is above displayed on the self-diagnosis display?
YES >> GO TO 2.
NO >> INSPECTION END
2. CHECK STOP LAMP SWITCH CONNECTOR
1. Disconnect stop lamp switch connector and ABS actuator and electric unit (control unit) connector.
2. Check terminals for deformation, disconnection, looseness, and so on. If any malfunction is found, repair
or replace terminal.
3. Reconnect connectors securely.
4. Start engine.
5. Repeat pumping brake pedal carefully several times, then perform the self-diagnosis again.
OK or NG
OK >> Connector terminal contact is loose, damaged, open or shorted.
NG >> GO TO 3.
3. CHECK STOP LAMP SWITCH
1. Turn ignition switch OFF.
2. Disconnect stop lamp switch harness connector E124.
3. Operate stop lamp switch and check continuity between stop lamp switch harness connector terminals.
OK or NG
OK >> GO TO 4.
NG >> Replace stop lamp switch. Refer to BR-7, "
Removal and Installation" .
ABS actuator and electric unit (control unit) Ground Continuity
1, 4 — Yes
SFIA3033E
Self-diagnosis results
PRESS SEN CIRCUIT
Terminal Condition Continuity
3 − 4Release stop lamp switch
(When brake pedal is depressed.)Ye s
Push stop lamp switch
(When brake pedal is released.)No

EC-7
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ECA
Revision: 2007 April2007 M35/M45 DTC P2100, P2103 THROTTLE CONTROL MOTOR
RELAY .................................................................... 598
Component Description ........................................ 598
CONSULT-II Reference Value in Data Monitor Mode
. 598
On Board Diagnosis Logic ................................... 598
DTC Confirmation Procedure ............................... 598
Wiring Diagram .................................................... 600
Diagnostic Procedure ........................................... 601
DTC P2101 ELECTRIC THROTTLE CONTROL
FUNCTION .............................................................. 604
Description ........................................................... 604
On Board Diagnosis Logic ................................... 604
DTC Confirmation Procedure ............................... 604
Wiring Diagram .................................................... 605
Diagnostic Procedure ........................................... 606
Component Inspection ......................................... 609
Removal and Installation ...................................... 609
DTC P2118 THROTTLE CONTROL MOTOR ........ 610
Component Description ........................................ 610
On Board Diagnosis Logic ................................... 610
DTC Confirmation Procedure ............................... 610
Wiring Diagram ..................................................... 611
Diagnostic Procedure ........................................... 612
Component Inspection ......................................... 613
Removal and Installation ...................................... 614
DTC P2119 ELECTRIC THROTTLE CONTROL
ACTUATOR ............................................................ 615
Component Description ........................................ 615
On Board Diagnosis Logic ................................... 615
DTC Confirmation Procedure ............................... 615
Diagnostic Procedure ........................................... 616
DTC P2122, P2123 APP SENSOR ........................ 617
Component Description ........................................ 617
CONSULT-II Reference Value in Data Monitor Mode
. 617
On Board Diagnosis Logic ................................... 617
DTC Confirmation Procedure ............................... 618
Wiring Diagram .................................................... 619
Diagnostic Procedure ........................................... 620
Component Inspection ......................................... 622
Removal and Installation ...................................... 623
DTC P2127, P2128 APP SENSOR ........................ 624
Component Description ........................................ 624
CONSULT-II Reference Value in Data Monitor Mode
. 624
On Board Diagnosis Logic ................................... 624
DTC Confirmation Procedure ............................... 625
Wiring Diagram .................................................... 626
Diagnostic Procedure ........................................... 627
Component Inspection ......................................... 630
Removal and Installation ...................................... 630
DTC P2135 TP SENSOR ........................................ 631
Component Description ........................................ 631
CONSULT-II Reference Value in Data Monitor Mode
. 631
On Board Diagnosis Logic ................................... 631
DTC Confirmation Procedure ............................... 632
Wiring Diagram .................................................... 633Diagnostic Procedure ...........................................634
Component Inspection ..........................................637
Removal and Installation ......................................637
DTC P2138 APP SENSOR .....................................638
Component Description ........................................638
CONSULT-II Reference Value in Data Monitor Mode
.638
On Board Diagnosis Logic ....................................638
DTC Confirmation Procedure ...............................639
Wiring Diagram .....................................................640
Diagnostic Procedure ...........................................641
Component Inspection ..........................................645
Removal and Installation ......................................645
DTC P2A00, P2A03 A/F SENSOR 1 ......................646
Component Description ........................................646
CONSULT-II Reference Value in Data Monitor Mode
.646
On Board Diagnosis Logic ....................................646
DTC Confirmation Procedure ...............................646
Wiring Diagram .....................................................648
Diagnostic Procedure ...........................................651
Removal and Installation ......................................656
ASCD BRAKE SWITCH .........................................657
Component Description ........................................657
CONSULT-II Reference Value in Data Monitor Mode
.657
Wiring Diagram .....................................................658
Diagnostic Procedure ...........................................659
Component Inspection ..........................................663
ASCD INDICATOR ..................................................664
Component Description ........................................664
CONSULT-II Reference Value in Data Monitor Mode
.664
Wiring Diagram .....................................................665
Diagnostic Procedure ...........................................666
ELECTRICAL LOAD SIGNAL ................................667
Description ............................................................667
CONSULT-II Reference Value in Data Monitor Mode
.667
Diagnostic Procedure ...........................................667
FUEL INJECTOR ....................................................669
Component Description ........................................669
CONSULT-II Reference Value in Data Monitor Mode
.669
Wiring Diagram .....................................................670
Diagnostic Procedure ...........................................671
Component Inspection ..........................................674
Removal and Installation ......................................674
FUEL PUMP ............................................................675
Description ............................................................675
CONSULT-II Reference Value in Data Monitor Mode
.675
Wiring Diagram .....................................................676
Diagnostic Procedure ...........................................677
Component Inspection ..........................................681
Removal and Installation ......................................682
ICC BRAKE SWITCH .............................................683
Component Description ........................................683
CONSULT-II Reference Value in Data Monitor Mode

EC-14Revision: 2007 April2007 M35/M45 On Board Diagnosis Logic ...................................1302
DTC Confirmation Procedure ..............................1302
Wiring Diagram ....................................................1303
Diagnostic Procedure ..........................................1304
Component Inspection .........................................1305
Removal and Installation .....................................1306
DTC P1805 BRAKE SWITCH ................................1307
Component Description .......................................1307
CONSULT-II Reference Value in Data Monitor Mode
1307
On Board Diagnosis Logic ...................................1307
DTC Confirmation Procedure ..............................1308
Wiring Diagram ....................................................1309
Diagnostic Procedure ..........................................1310
Component Inspection .........................................1315
DTC P2100, P2103 THROTTLE CONTROL MOTOR
RELAY ....................................................................1316
Component Description .......................................1316
CONSULT-II Reference Value in Data Monitor Mode
1316
On Board Diagnosis Logic ...................................1316
DTC Confirmation Procedure ..............................1316
Wiring Diagram ....................................................1318
Diagnostic Procedure ..........................................1319
DTC P2101 ELECTRIC THROTTLE CONTROL
FUNCTION .............................................................1322
Description ...........................................................1322
On Board Diagnosis Logic ...................................1322
DTC Confirmation Procedure ..............................1322
Wiring Diagram ....................................................1323
Diagnostic Procedure ..........................................1324
Component Inspection .........................................1328
Removal and Installation .....................................1328
DTC P2118 THROTTLE CONTROL MOTOR ........1329
Component Description .......................................1329
On Board Diagnosis Logic ...................................1329
DTC Confirmation Procedure ..............................1329
Wiring Diagram ....................................................1330
Diagnostic Procedure ..........................................1331
Component Inspection .........................................1332
Removal and Installation .....................................1333
DTC P2119 ELECTRIC THROTTLE CONTROL
ACTUATOR ............................................................1334
Component Description .......................................1334
On Board Diagnosis Logic ...................................1334
DTC Confirmation Procedure ..............................1334
Diagnostic Procedure ..........................................1335
DTC P2122, P2123 APP SENSOR ........................1336
Component Description .......................................1336
CONSULT-II Reference Value in Data Monitor Mode
1336
On Board Diagnosis Logic ...................................1336
DTC Confirmation Procedure ..............................1337
Wiring Diagram ....................................................1338
Diagnostic Procedure ..........................................1339
Component Inspection .........................................1341
Removal and Installation .....................................1342
DTC P2127, P2128 APP SENSOR ........................1343
Component Description .......................................1343CONSULT-II Reference Value in Data Monitor Mode
1343
On Board Diagnosis Logic ...................................1343
DTC Confirmation Procedure ...............................1344
Wiring Diagram ....................................................1345
Diagnostic Procedure ...........................................1346
Component Inspection .........................................1349
Removal and Installation ......................................1349
DTC P2135 TP SENSOR .......................................1350
Component Description .......................................1350
CONSULT-II Reference Value in Data Monitor Mode
1350
On Board Diagnosis Logic ...................................1350
DTC Confirmation Procedure ...............................1351
Wiring Diagram ....................................................1352
Diagnostic Procedure ...........................................1353
Component Inspection .........................................1356
Removal and Installation ......................................1356
DTC P2138 APP SENSOR .....................................1357
Component Description .......................................1357
CONSULT-II Reference Value in Data Monitor Mode
1357
On Board Diagnosis Logic ...................................1357
DTC Confirmation Procedure ...............................1358
Wiring Diagram ....................................................1359
Diagnostic Procedure ...........................................1360
Component Inspection .........................................1364
Removal and Installation ......................................1364
DTC P2A00, P2A03 A/F SENSOR 1 ......................1365
Component Description .......................................1365
CONSULT-II Reference Value in Data Monitor Mode
1365
On Board Diagnosis Logic ...................................1365
DTC Confirmation Procedure ...............................1365
Wiring Diagram ....................................................1367
Diagnostic Procedure ...........................................1370
Removal and Installation ......................................1376
ASCD BRAKE SWITCH .........................................1377
Component Description .......................................1377
CONSULT-II Reference Value in Data Monitor Mode
1377
Wiring Diagram ....................................................1378
Diagnostic Procedure ...........................................1379
Component Inspection .........................................1383
ASCD INDICATOR .................................................1384
Component Description .......................................1384
CONSULT-II Reference Value in Data Monitor Mode
1384
Wiring Diagram ....................................................1385
Diagnostic Procedure ...........................................1386
ELECTRICAL LOAD SIGNAL ...............................1387
Description ...........................................................1387
CONSULT-II Reference Value in Data Monitor Mode
1387
Diagnostic Procedure ...........................................1387
FUEL INJECTOR ....................................................1389
Component Description .......................................1389
CONSULT-II Reference Value in Data Monitor Mode
1389

AIR CONDITIONING CUT CONTROL
EC-35
[VQ35DE]
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EC
Revision: 2007 April2007 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
Air conditioner ON signal*
1
Air conditioner
cut controlAir conditioner relay Accelerator pedal position sensor Accelerator pedal position
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
Vehicle speed*
1

ON BOARD REFUELING VAPOR RECOVERY (ORVR)
EC-49
[VQ35DE]
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EC
Revision: 2007 April2007 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-97
[VQ35DE]
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Revision: 2007 April2007 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

P1421 Cold start control

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-98
[VQ35DE]
TROUBLE DIAGNOSIS
Revision: 2007 April2007 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 (104°F)
More than approx. 4 minutes after
ignition ON or START80°C (176°F)
Except as shown above40 - 80°C (104 - 176°F)
(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