2006 INFINITI M35 Fuse

DI-98
LANE DEPARTURE WARNING SYSTEM
Revision: 2006 January2006 M35/M45
DTC [U1000] CAN COMM CIRCUITNKS003VT
1. CHECK CAN COMMUNICATION
1. Select “SELF-DIAG RESULTS” mode for “LDW” with CONSULT-II.
2. Print out CONSULT-II screen.
>> Go to “LAN SYSTEM”. Refer to LAN-7, "
Precautions When Using CONSULT-II" .
DTC [U1010] CONTROL UNIT (CAN)NKS003VU
Replace LDW camera unit, when “[U1010] CONTROL UNIT (CAN)” is displayed on self-diagnosis display.
LDW Chime Circuit InspectionNKS003VV
1. CHECK OPERATION OF LDW CHIME
Check LDW chime operation “BUZZER DRIVE” in “ACTIVE TEST”
mode with CONSULT-II.
OK or NG
OK >> LDW chime is OK. Return to DI-96, "SYMPTOM
CHART" .
NG >> GO TO 2.
2. CHECK LDW CHIME POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect LDW chime connector.
3. Turn ignition switch ON.
4. Check voltage between LDW chime harness connector and
ground.
OK or NG
OK >> GO TO 3.
NG >> Check harness between fuse and LDW chime.
3. CHECK LDW CHIME GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Check continuity between LDW chime harness connector and
ground.
OK or NG
OK >> GO TO 4.
NG >> Repair harness or connector.“BUZZER DRIVE”
Touch “ON” : LDW chime is activated.
Touch “OFF” : LDW chime is not activated.
SKIB1787E
Terminals
Voltage (Approx.) (+)
(–)
LDW chime connector Terminal
M58 1 Ground Battery voltage
PKIC0248E
LDW chime connector Terminal
GroundContinuity
M58 3 Yes
PKIC0249E

LANE DEPARTURE WARNING SYSTEM
DI-101
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DI
Revision: 2006 January2006 M35/M45
7. CHECK LDW SYSTEM ON INDICATOR POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect LDW switch connector.
3. Turn ignition switch ON.
4. Check voltage between LDW switch harness connector and
ground.
OK or NG
OK >> GO TO 8.
NG >> Check harness between fuse and LDW switch.
8. CHECK LDW SYSTEM ON INDICATOR SIGNAL CIRCUIT
1. Disconnect LDW camera unit connector.
2. Check continuity between LDW camera unit harness connector
(A) and LDW switch harness connector (B).
3. Check continuity between LDW camera unit harness connector
(A) and ground.
OK or NG
OK >> GO TO 9.
NG >> Repair harness or connector.
9. CHECK LDW SYSTEM ON INDICATOR
1. Connect LDW switch connector.
2. Turn ignition switch ON.
3. Apply ground to LDW switch terminal.
4. Check condition of the LDW system ON indicator.
OK or NG
OK >> Replace LDW camera unit.
NG >> Replace LDW switch.
Te r m i n a l s
Voltage (Approx.) (+)
(–)
LDW chime connector Terminal
M49 3 Ground Battery voltage
PKIC0255E
AB
Continuity
Connector Terminal Connector Terminal
M1824 M492 Yes
A
GroundContinuity
Connector Terminal
M182 4 No
PKIC0256E
LDW switch
connectorTerminal
GroundCondition
M49 2 LDW system ON indicator
should illuminate.
PKIC0257E

EC-84
[VQ35DE]
BASIC SERVICE PROCEDURE
Revision: 2006 January2006 M35/M45
Idle Mixture Ratio AdjustmentNBS004SS
PREPARATION
1. Make sure that the following parts are in good order.
Battery
Ignition system
Engine oil and coolant levels
Fuses
ECM harness connector
Vacuum hoses
Air intake system
(Oil filler cap, oil level gauge, etc.)
Fuel pressure
Engine compression
Throttle valve
Evaporative emission system
2. On air conditioner equipped models, checks should be carried out while the air conditioner is OFF.
3. Checks should be carried out while selector lever is in P or N position.
4. When measuring CO percentage, insert probe more than 40 cm (15.7 in) into tail pipe.
5. Turn off headlamp, heater blower, rear window defogger.
6. Keep front wheels pointed straight ahead.

EC-98
[VQ35DE]
BASIC SERVICE PROCEDURE
Revision: 2006 January2006 M35/M45
13. If idle speed and ignition timing are not within the specification, Idle Air Volume Learning will not be carried
out successfully. In this case, find the cause of the incident by referring to the Diagnostic Procedure below.
DIAGNOSTIC PROCEDURE
If idle air volume learning cannot be performed successfully, proceed as follows:
1.Check that throttle valve is fully closed.
2.Check PCV valve operation.
3.Check that downstream of throttle valve is free from air leakage.
4.When the above three items check out OK, engine component parts and their installation condi-
tion are questionable. Check and eliminate the cause of the incident.
It is useful to perform EC-155, "
TROUBLE DIAGNOSIS - SPECIFICATION VALUE" .
5.If any of the following conditions occur after the engine has started, eliminate the cause of the
incident and perform Idle Air Volume Learning all over again:
–Engine stalls.
–Erroneous idle.
Fuel Pressure CheckNBS004SX
FUEL PRESSURE RELEASE
With CONSULT-II
1. Turn ignition switch ON.
2. Perform “FUEL PRESSURE RELEASE” in “WORK SUPPORT”
mode with CONSULT-II.
3. Start engine.
4. After engine stalls, crank it two or three times to release all fuel
pressure.
5. Turn ignition switch OFF.
Without CONSULT-II
1. Remove fuel pump fuse (1) located in IPDM E/R (2).
2. Start engine.
3. After engine stalls, crank it two or three times to release all fuel
pressure.
4. Turn ignition switch OFF.
5. Reinstall fuel pump fuse after servicing fuel system.
FUEL PRESSURE CHECK
CAUTION:
Before disconnecting fuel line, release fuel pressure from fuel line to eliminate danger.
NOTE:
Prepare pans or saucers under the disconnected fuel line because the fuel may spill out. The fuel
pressure cannot be completely released because Y50 models do not have fuel return system.
Use Fuel Pressure Gauge Kit (J-44321) to check fuel pressure.
1. Release fuel pressure to zero. Refer to EC-98, "
FUEL PRESSURE RELEASE" .
ITEM SPECIFICATION
Idle speed 650
50 rpm (in P or N position)
Ignition timing 15
5 BTDC (in P or N position)
SEF214Y
PBIB2697E

TROUBLE DIAGNOSIS
EC-115
[VQ35DE]
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EC
Revision: 2006 January2006 M35/M45
: Vehicle front
1. Knock sensor 2. Fuel damper 3. Camshaft position sensor (PHASE)
(Bank 1)
4. Fuel injector harness connector 5. Condenser 6. Fuel damper
7. Camshaft position sensor (PHASE)
(Bank 2)8. Fuel pump fuse 9. IPDM E/R
PBIB2788E

POWER SUPPLY AND GROUND CIRCUIT
EC-167
[VQ35DE]
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EC
Revision: 2006 January2006 M35/M45
Specification data are reference values and are measured between each terminal and ground.
CAUTION:
Do not use ECM ground terminals when measuring input/output voltage. Doing so may result in dam-
age to the ECM's transistor. Use a ground other than ECM terminals, such as the ground.
Diagnostic ProcedureNBS004TI
1. INSPECTION START
Start engine.
Is engine running?
Ye s o r N o
Ye s > > G O T O 8 .
No >> GO TO 2.
2. CHECK ECM POWER SUPPLY CIRCUIT-I
1. Turn ignition switch OFF and then ON.
2. Check voltage between ECM terminal 109 and ground with
CONSULT-II or tester.
OK or NG
OK >> GO TO 4.
NG >> GO TO 3.
3. DETECT MALFUNCTIONING PART
Check the following.
Fuse block (J/B) connector M4
15A fuse
Harness for open or short between ECM and fuse
>> Repair open circuit or short to ground or short to power in harness or connectors.
TER-
MINAL
NO.WIRE
COLORITEM CONDITION DATA (DC Voltage)
1 B ECM ground[Engine is running]
Idle speedBody ground
109 L Ignition switch[Ignition switch: OFF]0V
[Ignition switch: ON]BATTERY VOLTAGE
(11 - 14V)
111 S BECM relay
(Self shut-off)[Engine is running]
[Ignition switch: OFF]
A few seconds after turning ignition switch
OFF0 - 1.5V
[Ignition switch: OFF]
More than a few seconds after turning igni-
tion switch OFFBATTERY VOLTAGE
(11 - 14V)
11 5
11 6B
BECM ground[Engine is running]
Idle speedBody ground
11 9
120R
RPower supply for ECM[Ignition switch: ON]BATTERY VOLTAGE
(11 - 14V)
Voltage: Battery voltage
MBIB0015E

EC-170
[VQ35DE]
POWER SUPPLY AND GROUND CIRCUIT
Revision: 2006 January2006 M35/M45
12. CHECK ECM POWER SUPPLY CIRCUIT-VI
1. Disconnect ECM harness connector.
2. Disconnect IPDM E/R harness connector E9.
3. Check harness continuity between ECM terminal 111 and IPDM E/R terminal 46.
Refer to Wiring Diagram.
4. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 14.
NG >> GO TO 13.
13. DETECT MALFUNCTIONING PART
Check the following.
Harness or connectors E108, M15
Harness for open or short between ECM and IPDM E/R
>> Repair open circuit or short to ground or short to power in harness or connectors.
14. CHECK 20A FUSE
1. Disconnect 20A fuse from IPDM E/R.
2. Check 20A fuse.
OK or NG
OK >> GO TO 18.
NG >> Replace 20A fuse.
15. CHECK GROUND CONNECTIONS-II
Loosen and retighten two ground screws on the body.
Refer to EC-172, "
Ground Inspection" .
OK or NG
OK >> GO TO 16.
NG >> Repair or replace ground connections.Continuity should exist.
1. Body ground M70 2. Body ground M16
PBIB2782E

DTC P0031, P0032, P0051, P0052 A/F SENSOR 1 HEATER
EC-187
[VQ35DE]
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Revision: 2006 January2006 M35/M45
2. CHECK AIR FUEL RATIO (A/F) SENSOR 1 POWER SUPPLY CIRCUIT
1. Disconnect air fuel ratio (A/F) sensor 1 harness connector.
2. Turn ignition switch ON.
3. Check voltage between A/F sensor 1 terminal 3 and ground with
CONSULT-II or tester.
OK or NG
OK >> GO TO 4.
NG >> GO TO 3.
3. DETECT MALFUNCTIONING PART
Check the following.
Harness connectors E12, F3
IPDM E/R harness connector E7
15A fuse
Harness for open or short between A/F sensor 1 and fuse
>> Repair or replace harness or connectors.
4. CHECK A/F SENSOR 1 HEATER OUTPUT SIGNAL CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Check harness continuity between the following;
ECM terminal 2 and A/F sensor 1 (bank 1) terminal 4 or
ECM terminal 24 and A/F sensor 1 (bank 2) terminal 4.
Refer to Wiring Diagram.
4. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 5.
NG >> Repair open circuit or short to ground or short to power in harness or connectors. Voltage: Battery voltage
PBIB2794E
PBIB1683E
Continuity should exist.