INFINITI M35 2007 Factory Service Manual

BL-88
INTELLIGENT KEY SYSTEM
Revision: 2007 April2007 M35/M45
POWER WINDOW DOWN FUNCTION MALFUNCTION
NOTE:

Before performing the diagnosis in the following table, check “Trouble Diagnosis Procedure”. Refer to BL-
77, "Trouble Diagnosis Procedure" .

If the following “symptoms” are detected, check systems shown in the “Diagnoses/service procedure” col-
umn in this order.
Conditions of Vehicle (Operating Conditions)

Ignition switch is in OFF or ACC position.

Retained power operation does not operate. Refer to GW-17, "RETAINED POWER OPERATION" .
WARNING FUNCTION MALFUNCTION
NOTE:

Before performing the diagnosis in the following table, check “Trouble Diagnosis Procedure”. Refer to BL-
77, "Trouble Diagnosis Procedure" .

Make sure that vehicle is under the condition shown in “Conditions of vehicle” before starting diagnosis,
and check each symptom.

If the following “symptoms” are detected, check systems shown in the “Diagnosis/service procedure” col-
umn in this order.
Conditions of Vehicle (Operating Conditions)
Warning chime functions operating condition is extremely complicated, during operating confirmations, recon-
firm the list above twice in order to ensure proper operation.
Symptom Diagnosis/service procedure Reference page
Power window down function does not
operate.1. Check “P/W DOWN DELAY” setting in “WORK SUPPORT”.BL-81
2. Check Intelligent Key battery inspection.BL-124
Symptom Diagnosis/service procedure Reference page
OFF position warn-
ing does not oper-
ate.For internal1. Check ignition switch position.BL-115
2. Check door switch.BL-94
3. Check warning chime function.BL-123
4. Replace Intelligent Key unit.BL-123
For external1. Check ignition switch position.BL-1152. Check door switch.BL-94
3. Check Intelligent Key warning buzzer.BL-105
4. Replace Intelligent Key unit.BL-123
P position warning does not operate.1. Check Park position switch.BL-113
2. Check door switch.BL-94
3. Check Intelligent Key warning buzzer.BL-105
4. Check warning chime function.BL-123
5. Check combination meter display.BL-122
6. Replace Intelligent Key unit. BL-123
ACC warning does not operate1. Check ignition switch position.BL-1152. Check warning chime function.BL-123
3. Check combination meter display.BL-122
4. Replace Intelligent Key unit.BL-123

INTELLIGENT KEY SYSTEM
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Revision: 2007 April2007 M35/M45
Take away warning
does not operate.Door open to close1. Check door switch.BL-94
2. Check inside key antenna.BL-110
3. Check Intelligent Key warning buzzer.BL-105
4. Check warning chime function.BL-123
5. Check key slot illumination.BL-121
6. Check combination meter display.BL-122
7. Replace Intelligent Key unit. BL-123
Push-button ignition
switch operation1. Check ignition switch position.BL-115
2. Check inside key antenna.BL-110
3. Check warning chime function.BL-123
4. Check key slot illumination.BL-121
5. Check combination meter display.BL-122
6. Replace Intelligent Key unit. BL-123
Door is open1. Check ignition switch position.BL-1152. Check inside key antenna.BL-110
3. Check combination meter display.BL-122
4. Replace Intelligent Key unit. BL-123
Take away through
window1.Check “TAKE OUT FROM WINDOW WARN” setting in
“WORK SUPPORT”.BL-81
2. Check inside key antenna.BL-110
3. Check warning chime function.BL-123
4. Check key slot illumination.BL-121
5. Check combination meter display.BL-122
6. Replace Intelligent Key unit. BL-123
Key warning chime does not operate.1. Check key slot.BL-92
2. Check door switch.BL-94
3. Check warning chime function.BL-123
4. Check key slot illumination.BL-121
5. Check combination meter display.BL-122
6. Replace Intelligent Key unit. BL-123
Door lock operation warning chime does
not operate.1. Check door switch.BL-94
2. Check key slot illumination.BL-121
3. Check Intelligent Key warning buzzer.BL-105
4. Check inside key antenna.BL-110
5. Replace Intelligent Key unit. BL-123
Symptom Diagnosis/service procedure Reference page

BL-90
INTELLIGENT KEY SYSTEM
Revision: 2007 April2007 M35/M45
Check CAN Communication SystemNIS001XL
1. CHECK SELF-DIAGNOSTIC RESULTS
CAUTION:
If CONSULT-II is used with no connection of CONSULT-II CONVERTER, malfunctions might be
detected in self-diagnosis depending on control unit which performs CAN communication.
With CONSULT-II

Connect CONSULT-II, and turn ignition switch ON.

Touch “INTELLIGENT KEY” on “SELECT SYSTEM” screen.

Touch “SELF-DIAG RESULTS” on “SELECT DIAG MODE” screen.

Check display content in self-diagnostic results.
OK or NG
NO DTC IS DETECTED>> INSPECTION END
CAN COMM CIRCUIT [U1000]>> After printing “SELF-DIAGNOSIS RESULTS”, go to “CAN SYSTEM”,
Refer to LAN-3, "
Precautions When Using CONSULT-II" .
CONTROL UNIT (CAN) [U1010]>> Replace Intelligent Key unit.
CONSULT-II display item DTC code
NO DTC IS DETECTED —
CAN COMM CIRCUIT U1000
CONTROL UNIT (CAN) U1010

INTELLIGENT KEY SYSTEM
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Revision: 2007 April2007 M35/M45
Check Power Supply and Ground CircuitNIS001XM
1. CHECK POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect Intelligent Key unit connector.
3. Check voltage between Intelligent Key unit harness connector and ground.
OK or NG
OK >> GO TO 2.
NG >> Repair or replace Intelligent Key power supply circuit.
2. CHECK GROUND CIRCUIT
Check continuity between Intelligent Key unit harness connector and ground.
OK or NG
OK >> Power supply and ground circuits are OK.
NG >> Repair or replace the Intelligent Key unit ground circuit.
Terminals
Voltage (V)
(Approx.) (+)
(–)
Intelligent Key unit
connectorTerminal
M32 1
Ground Battery voltage
M3341
57
PIIB6251E
Intelligent Key unit connector Terminal
GroundContinuity
M3220
Ye s 40
M3356
72
PIIB6318E

BL-92
INTELLIGENT KEY SYSTEM
Revision: 2007 April2007 M35/M45
Check Key SlotNIS001XN
1. CHECK KEY SLOT INPUT SIGNAL
Check voltage between Intelligent Key unit harness connector and ground.
OK or NG
OK >> Key slot is OK.
NG >> GO TO 2.
2. CHECK KEY SLOT POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect key slot connector.
3. Check voltage between slot connector and ground.
OK or NG
OK >> GO TO 3.
NG >> Repair or replace key slot power supply circuit.
3. CHECK KEY SLOT
Check key slot.
OK or NG
OK >> GO TO 4.
NG >> Replace key slot.
Terminals
ConditionVoltage (V)
(Approx.) (+)
(–)
Intelligent Key
unit connectorTerminal
M32 19 GroundIntelligent Key inserted Battery voltage
Intelligent Key removed 0
PIIB6319E
Terminals
Voltage (V)
(Approx.) (+)
(–)
Key slot connector Terminal
M14 1 Ground Battery voltage
PIIB6320E
Terminal
Condition Continuity
Key slot
13Intelligent Key inserted Yes
Intelligent Key removed No
PIIB6321E

INTELLIGENT KEY SYSTEM
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Revision: 2007 April2007 M35/M45
4. CHECK KEY SLOT GROUND CIRCUIT
Check continuity between key slot connector and ground.
OK or NG
OK >> GO TO 5.
NG >> Repair or replace key slot ground circuit.
5. CHECK KEY SWITCH CIRCUIT
1. Disconnect Intelligent Key unit connector.
2. Check continuity between Intelligent Key unit connector 7 and key slot connector.
3. Check continuity between Intelligent Key unit connector and
ground.
OK or NG
OK >> Check the condition of harness and harness connector.
NG >> Repair or replace harness between Intelligent Key unit and key slot.
Key slot connector Terminal
GroundContinuity
M14 8 Yes
PIIB6322E
AB
Continuity
Intelligent Key
unit connectorTerminal Key slot connector Terminal
M32 19 M14 2 Yes
A
GroundContinuity
Intelligent Key unit connector Terminal
M32 19 No
PIIB6323E

BL-94
INTELLIGENT KEY SYSTEM
Revision: 2007 April2007 M35/M45
Check Door SwitchNIS001XO
1. CHECK DOOR SWITCH INPUT SIGNAL
With CONSULT-II
Check door switches (“DOOR SW-DR”, “DOOR SW-AS”, “DOOR SW-RL” and “DOOR SW-RR”) in “DATA
MONITOR” mode with CONSULT-II.
Without CONSULT-II
1. Turn ignition switch OFF.
2. Check voltage between BCM connector and ground.
OK or NG
OK >> Door switch circuit is OK.
NG >> GO TO 2.
Monitor item Condition
DOOR SW-DR
CLOSE → OPEN: OFF → ON DOOR SW-AS
DOOR SW-RL
DOOR SW-RR
PIIA6469E
Terminals
Door conditionVoltage (V)
(Approx.) (+)
(–)
BCM
connectorTerminal
M112
GroundFront
passenger
sideOPEN 0
CLOSE Battery voltage
13Rear RH
sideOPEN 0
CLOSE Battery voltage
M362 Driver sideOPEN 0
CLOSE Battery voltage
63Rear LH
sideOPEN 0
CLOSE Battery voltage
PIIB6324E

INTELLIGENT KEY SYSTEM
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Revision: 2007 April2007 M35/M45
2. CHECK DOOR SWITCH
1. Turn ignition switch OFF.
2. Disconnect door switch connector.
3. Check door switch.
OK or NG
OK >> GO TO 3.
NG >> Replace malfunction door switch.
3. CHECK DOOR SWITCH CIRCUIT
1. Disconnect BCM connector.
2. Check continuity between BCM connector and door switch connector.
3. Check continuity between BCM connector and ground.
OK or NG
OK >> GO TO 4.
NG >> Repair or replace harness between BCM and door
switch.
Terminal
Door switch Continuity
Door switch
2Ground part of
door switchPushed No
Released Yes
PIIB5977E
AB
Continuity
BCM connector TerminalDoor switch
connectorTerminal
M112 B35
2Yes 13 B403
M362 B11
63 B53
A
GroundContinuity
BCM connector Terminal
M112
No 13
M362
63
PIIB6325E

BL-96
INTELLIGENT KEY SYSTEM
Revision: 2007 April2007 M35/M45
4. CHECK BCM OUTPUT SIGNAL
1. Connect BCM connector.
2. Check voltage between BCM connector and ground.
OK or NG
OK >> Check the condition of harness and connector.
NG >> Replace BCM.
Terminals
Voltage (V)
(Approx.) (+)
(–)
BCM connector Terminal
M112
Ground Battery voltage 13
M362
63
PIIB6324E

INTELLIGENT KEY SYSTEM
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Revision: 2007 April2007 M35/M45
Check Trunk Room Lamp SwitchNIS001XP
1. CHECK TRUNK ROOM LAMP SWITCH INPUT SIGNAL
With CONSULT-II
Check (“TRUNK SW”) in “DATA MONITOR” mode with CONSULT-II.
Without CONSULT-II
1. Turn ignition switch OFF.
2. Check voltage between BCM connector and ground.
OK or NG
OK >> Trunk room lamp switch circuit is OK.
NG >> GO TO 2.
2. CHECK TRUNK ROOM LAMP SWITCH
1. Turn ignition switch OFF.
2. Disconnect trunk lid lock assembly connector.
3. Check trunk room lamp switch.
OK or NG
OK >> GO TO 3.
NG >> Replace trunk room lamp switch.
Monitor item Condition
TRUNK SWOPEN : ON
CLOSE : OFF
PIIB1362E
Terminals
Trunk
conditionVoltage (V)
(Approx.) (+)
(–)
BCM connector Terminal
M3 57 GroundOPEN 0
CLOSE Battery voltage
PIIB6326E
Terminal
Trunk condition Continuity
Trunk room lamp switch
12OPEN Yes
CLOSE No
PIIB8995E