2006 INFINITI M35 ground

ACS-42
[ICC]
TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS
Revision: 2006 January2006 M35/M45
3. CHECK GROUND CIRCUIT FOR ICC SENSOR INTEGRATED UNIT
1. Turn ignition switch OFF.
2. Check continuity between ICC sensor integrated unit harness
connector and ground.
OK or NG
OK >> 1. Replace ICC sensor integrated unit, and adjust laser
beam aiming.
2. Erase DTC and perform ICC system running test.
Then perform self-diagnosis of ICC system again.
NG >> 1. Repair or replace ICC sensor integrated unit ground harness.
2. Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system
again.
DTC 3 VHCL SPEED SE CIRCNKS004D2
1. PERFORM ICC SENSOR INTEGRATED UNIT SELF-DIAGNOSIS
1. Perform self-diagnosis.
2. Check if “ABS/TCS/VDC CIRC [C1A04]” (DTC 4) or “CAN COMM CIRCUIT [U1000]” (DTC 100) other
than “VHCL SPEED SE CIRC [C1A03]” (DTC 3) is indicated in self-diagnosis item in the display.
Is any indicated?
YES >> 1. Repair or replace applicable item. Refer to ACS-39, "Diagnostic Trouble Code (DTC) Chart" .
2. Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system
again.
NO >> GO TO 2.
2. CHECK A/T VEHICLE SPEED SENSOR
With CONSULT-II
With “ICC” “DATA MONITOR”, check if “VHCL SPD AT” operates normally.
OK or NG
OK >> 1. Replace ICC sensor integrated unit, and adjust laser beam aiming.
2. Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system
again.
NG >> 1. Perform “A/T” self-diagnosis. Refer to AT- 9 0 , "
CONSULT-II Function (A/T)" .
2. After repairing or replacing applicable item, erase DTC and perform ICC system running test.
Then perform self-diagnosis of ICC system again.
DTC 4 ABS/TCS/VDC CIRCNKS004D3
1. PERFORM ICC SENSOR INTEGRATED UNIT SELF-DIAGNOSIS
1. Perform self-diagnosis.
2. Check if “CAN COMM CIRCUIT [U1000]” (DTC100) other than “ABS/TCS/VDC CIRC [C1A04]” (DTC 4) is
indicated in self-diagnosis item in the display.
Is it indicated?
YES >> 1. CAN communication inspection. Refer to ACS-60, "DTC 100 CAN COMM CIRCUIT" .
2. After repairing or replacing applicable item, erase DTC and perform ICC system running test.
Then perform self-diagnosis of ICC system again.
NO >> GO TO 2.
ICC sensor integrated
unit connectorTerminal
GroundContinuity
E61 4 Yes
PKIB8376E

ACS-44
[ICC]
TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS
Revision: 2006 January2006 M35/M45
5. PERFORM ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) SELF-DIAGNOSIS
With CONSULT-II
1. Perform “ABS” self-diagnosis. Refer to BRC-22, "
CONSULT-II Functions (ABS)" .
2. Check if malfunction is indicated.
Is malfunction indicated?
YES >> 1. Repair or replace applicable item.
2. Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system
again.
NO >> 1. Replace ICC sensor integrated unit, and adjust laser beam aiming.
2. Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system
again.
6. CHECK ICC BRAKE SWITCH INSTALLATION AND ADJUSTMENT
Check ICC brake switch for proper installation, and adjust the switch if necessary. Refer to BR-6, "
BRAKE
PEDAL" .
OK or NG
OK >> GO TO 7.
NG >> 1. Adjust ICC brake switch.
2. Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system
again.
7. CHECK ICC BRAKE SWITCH
Check ICC brake switch. Refer to ACS-68, "
ICC Brake Switch and Stop Lamp Switch" .
OK or NG
OK >> GO TO 8.
NG >> 1. Replace ICC brake switch.
2. Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system
again.
8. CHECK ICC BRAKE SWITCH POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect ICC brake switch connector.
3. Turn ignition switch ON.
4. Check voltage between ICC brake switch harness connector
and ground.
OK or NG
OK >> GO TO 9.
NG >> 1. Repair or replace harness or fuse.
2. Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system
again.
Te r m i n a l s
Voltage
(Approx.) (+)
(–)
ICC brake switch
connectorTerminal
E111 1 Ground Battery voltage
PKIB9335E

TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS
ACS-45
[ICC]
C
D
E
F
G
H
I
J
L
MA
B
ACS
Revision: 2006 January2006 M35/M45
9. CHECK HARNESS BETWEEN ICC BRAKE SWITCH AND ECM
1. Turn ignition switch OFF.
2. Disconnect ECM connector.
3. Check continuity between ICC brake switch harness connector
(A) and ECM harness connector (B).
4. Check continuity between ICC brake switch harness connector
(A) and ground.
OK or NG
OK >> GO TO 10.
NG >> 1. Repair or replace harness between ICC brake switch and ECM.
2. Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system
again.
10. PERFORM ECM SELF-DIAGNOSIS
With CONSULT-II
1. Perform “ENGINE” self-diagnosis. Refer to EC-133, "
CONSULT-II Function (ENGINE)" (for VQ35DE) or
EC-846, "
CONSULT-II Function (ENGINE)" (for VK45DE).
2. Check if malfunction is indicated.
Is malfunction indicated?
YES >> 1. Repair or replace applicable item.
2. Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system
again.
NO >> 1. Replace ICC sensor integrated unit, and adjust laser beam aiming.
2. Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system
again.
11 . CHECK STOP LAMP SWITCH INSTALLATION AND ADJUSTMENT
Check stop lamp switch for proper installation, and adjust the switch if necessary. Refer to BR-6, "
BRAKE
PEDAL" .
OK or NG
OK >> GO TO 12.
NG >> 1. Adjust stop lamp switch.
2. Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system
again.
12. CHECK STOP LAMP SWITCH
Check stop lamp switch. Refer to ACS-68, "
ICC Brake Switch and Stop Lamp Switch" .
OK or NG
OK >> GO TO 13.
NG >> 1. Replace stop lamp switch.
2. Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system
again.
AB
Continuity
Connector Terminal Connector Terminal
E111 2 M71 108 Yes
A
GroundContinuity
Connector Terminal
E 111 2 N o
PKIB9336E

ACS-46
[ICC]
TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS
Revision: 2006 January2006 M35/M45
13. CHECK STOP LAMP SWITCH POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect stop lamp switch connector.
3. Turn ignition switch ON.
4. Check voltage between stop lamp switch harness connector and
ground.
OK or NG
OK >> GO TO 14.
NG >> 1. Repair or replace harness or fuse.
2. Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system
again.
14. CHECK HARNESS BETWEEN STOP LAMP SWITCH AND ABS ACTUATOR AND ELECTRIC UNIT
(CONTROL UNIT)
1. Turn ignition switch OFF.
2. Disconnect ABS actuator and electric unit (control unit) connector.
3. Check continuity between stop lamp switch harness connector
(A) and ABS actuator and electric unit (control unit) harness
connector (B).
4. Check continuity between stop lamp switch harness connector
(A) and ground.
OK or NG
OK >> 1. Perform “ABS” self-diagnosis. Refer to BRC-22, "CONSULT-II Functions (ABS)" .
2. After repairing or replacing applicable item, erase DTC and perform ICC system running test.
Then perform self-diagnosis of ICC system again.
NG >> 1. Repair or replace harness between stop lamp switch and ABS actuator and electric unit (control
unit).
2. Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system
again.
Te r m i n a l s
Voltage
(Approx.) (+)
(–)
Stop lamp switch
connectorTerminal
E124 3 Ground Battery voltage
PKIC0833E
AB
Continuity
Connector Terminal Connector Terminal
E124 4 E30 30 Yes
A
GroundContinuity
Connector Terminal
E124 4 No
PKIC0834E

ACS-48
[ICC]
TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS
Revision: 2006 January2006 M35/M45
4. CHECK ICC STEERING SWITCH SIGNAL CIRCUIT
1. Disconnect spiral cable connector and ECM connector.
2. Check continuity between spiral cable harness connector (A)
and ECM harness connector (B).
3. Check continuity between spiral cable harness connector (A)
and ground.
OK or NG
OK >> GO TO 5.
NG >> 1. Repair or replace harness between spiral cable and ECM.
2. Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system
again.
5. CHECK COMBINATION SWITCH (SPIRAL CABLE)
Check continuity between spiral cable terminals.
OK or NG
OK >> 1. Perform “ENGINE” self-diagnosis. Refer to EC-133,
"CONSULT-II Function (ENGINE)" (for VQ35DE) or
EC-846, "
CONSULT-II Function (ENGINE)" (for
VK45DE).
2. After repairing or replacing applicable item, erase DTC and perform ICC system running test.
Then perform self-diagnosis of ICC system again.
NG >> 1. Replace spiral cable.
2. Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system
again.
DTC 12 LASER BEAM OFFCNTRNKS004D6
1. ADJUST LASER BEAM AIMING
1. Adjust laser beam aiming. Refer to ACS-13, "
LASER BEAM AIMING ADJUSTMENT"
2. Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system again.
3. Check if “LASER BEAM OFFCNTR [C1A12]” (DTC 12) is indicated in self-diagnosis item in the display.
Is it indicated?
YES >> 1. Replace ICC sensor integrated unit, and adjust laser beam aiming.
2. Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system
again.
NO >> INSPECTION END
AB
Continuity
Connector Terminal Connector Terminal
M3931 F108 67
Ye s
34 M71 99
A
GroundContinuity
Connector Terminal
M3931
No
34
PKIB9339E
AB
Continuity
Terminal Terminal
31 18
Ye s
34 21
PKIB9340E

ACS-50
[ICC]
TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS
Revision: 2006 January2006 M35/M45
6. CHECK STOP LAMP ILLUMINATION
1. Turn ignition switch OFF.
2. Disconnect ICC brake hold relay.
3. Connect stop lamp switch connector.
4. Check if stop lamp is turned ON when depressing brake pedal.
OK or NG
OK >> GO TO 7.
NG >> 1. Repair or replace stop lamp circuit.
2. Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system
again.
7. CHECK HARNESS BETWEEN STOP LAMP SWITCH AND ECM
1. Disconnect stop lamp switch connector and ECM connector.
2. Check continuity between stop lamp switch harness connector
(A) and ECM harness connector (B).
3. Check continuity between stop lamp switch harness connector
(A) and ground.
OK or NG
OK >> GO TO 8.
NG >> 1. Repair or replace harness between stop lamp switch and ECM.
2. Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system
again.
8. CHECK ICC BRAKE HOLD RELAY CIRCUIT
1. Connect ICC brake hold relay and ECM connector.
2. When brake pedal is not depressed, make sure that stop lamp does not illuminate.
OK or NG
OK >> GO TO 10.
NG >> GO TO 9.
9. CHECK ICC BRAKE HOLD RELAY
1. Disconnect ICC brake hold relay.
2. Check ICC brake hold relay. Refer to ACS-68, "
ICC Brake Hold Relay" .
OK or NG
OK >> GO TO 10.
NG >> 1. Replace ICC brake hold relay.
2. Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system
again.
AB
Continuity
Connector Terminal Connector Terminal
E124 2 M71 101 Yes
A
GroundContinuity
Connector Terminal
E124 2 No
PKIC0927E

TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS
ACS-51
[ICC]
C
D
E
F
G
H
I
J
L
MA
B
ACS
Revision: 2006 January2006 M35/M45
10. PERFORM ECM SELF-DIAGNOSIS
With CONSULT-II
1. Perform “ENGINE” self-diagnosis. Refer to EC-133, "
CONSULT-II Function (ENGINE)" (for VQ35DE) or
EC-846, "
CONSULT-II Function (ENGINE)" (for VK45DE).
2. Check if malfunction is indicated.
Is malfunction indicated?
YES >> 1. Repair or replace applicable item.
2. Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system
again.
NO >> 1. Replace ICC sensor integrated unit, and adjust laser beam aiming.
2. Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system
again.
11 . CHECK HARNESS BETWEEN ICC SENSOR INTEGRATED UNIT AND ICC BRAKE HOLD RELAY
1. Turn ignition switch OFF.
2. Disconnect ICC sensor integrated unit connector and ICC brake hold relay.
3. Check continuity between ICC sensor integrated unit harness
connector (A) and ICC brake hold relay harness connector (B).
4. Check continuity between ICC sensor integrated unit harness
connector (A) and ground.
OK or NG
OK >> GO TO 12.
NG >> 1. Repair harness between ICC sensor integrated unit and ICC brake hold relay.
2. Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system
again.
12. CHECK ICC BRAKE HOLD RELAY GROUND CIRCUIT
Check continuity between ICC brake hold relay harness connector
and ground.
OK or NG
OK >> GO TO 13.
NG >> 1. Repair or replace harness between ICC brake hold
relay and ground.
2. Erase DTC and perform ICC system running test.
Then perform self-diagnosis of ICC system again.
AB
Continuity
Connector Terminal Connector Terminal
E61 2 E80 2 Yes
A
GroundContinuity
Connector Terminal
E61 2 No
PKIB9338E
ICC brake hold relay
connectorTerminal
GroundContinuity
E80 1 Yes
PKIB9341E

ACS-52
[ICC]
TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS
Revision: 2006 January2006 M35/M45
13. CHECK ICC SENSOR INTEGRATED UNIT STANDARD VOLTAGE
With CONSULT-II
1. Connect ICC sensor integrated unit connector.
2. Turn ignition switch ON.
3. Perform “ACTIVE TEST” (“STOP LAMP”: “STP LMP DRIVE
ON”) with CONSULT-II, check voltage between ICC brake hold
relay harness connector and ground.
OK or NG
OK >> GO TO 14.
NG >> 1. Replace ICC sensor integrated unit, and adjust laser beam aiming.
2. Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system
again.
14. CHECK ICC BRAKE HOLD RELAY POWER SUPPLY CIRCUIT
1. Turn ignition switch ON.
2. Check voltage between ICC brake hold relay harness connector
and ground.
OK or NG
OK >> GO TO 15.
NG >> 1. Repair or replace harness or fuse.
2. Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system
again.
Terminals
ConditionVoltage
(Approx.) (+)
(–)
ICC brake hold
relay connectorTerminal
E80 2 GroundDuring
“ACTIVE TEST”12 V
PKIB9342E
Terminals
Voltage
(Approx.) (+)
(–)
ICC brake hold relay
connectorTe r m i n a l
E80 3 Ground Battery voltage
PKIB9343E