2007 INFINITI M35 brake

ACS-50
[ICC]
TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS
Revision: 2007 April2007 M35/M45
DTC 13 STOP LAMP RLY FIXNKS004D7
1. PERFORM ICC SENSOR INTEGRATED UNIT SELF-DIAGNOSIS
1. Perform self-diagnosis.
2. Check if “CAN COMM CIRCUIT [U1000]” (DTC 100) other than “STOP LAMP RLY FIX [C1A13]” (DTC 13)
is indicated in self-diagnosis item in the display.
Is it indicated?
YES >> 1. CAN communication inspection. Refer to ACS-61, "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.
2. CHECK CONNECTOR FOR ECM
1. Turn ignition switch OFF.
2. Disconnect ECM connector, and connect it securely again.
3. Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system again.
4. Check if “STOP LAMP RLY FIX [C1A13]” (DTC 13) is indicated in self-diagnosis item in the display.
Is it indicated?
YES >> GO TO 3.
NO >> Poor connector connection
1. Check connector. (Check connector housing for disconnected, loose, bent, and collapsed ter-
minals. If any malfunction is detected, repair applicable part.)
2. Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system
again.
3. CHECK STOP LAMP SWITCH WITH ICC DATA MONITOR
With CONSULT-II
With “ICC” “DATA MONITOR”, check if “STOP LAMP SW” operates normally.
OK or NG
OK >> GO TO 11.
NG >> GO TO 4.
4. 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 5.
NG >> 1. Adjust stop lamp switch.
2. Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system
again.
5. CHECK STOP LAMP SWITCH
Check stop lamp switch. Refer to ACS-69, "
ICC Brake Switch and Stop Lamp Switch" .
OK or NG
OK >> GO TO 6.
NG >> 1. Replace stop lamp switch.
2. Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system
again.

TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS
ACS-51
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Revision: 2007 April2007 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-69, "
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

ACS-52
[ICC]
TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS
Revision: 2007 April2007 M35/M45
10. PERFORM ECM SELF-DIAGNOSIS
With CONSULT-II
1. Perform “ENGINE” self-diagnosis. Refer to EC-123, "
CONSULT-II Function (ENGINE)" (for VQ35DE) or
EC-826, "
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

TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS
ACS-53
[ICC]
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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
connectorTerminal
E80 3 Ground Battery voltage
PKIB9343E

ACS-54
[ICC]
TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS
Revision: 2007 April2007 M35/M45
15. CHECK HARNESS BETWEEN ICC BRAKE HOLD RELAY AND ECM
1. Turn ignition switch OFF.
2. Disconnect ECM connector.
3. Check continuity between ICC brake hold relay harness connec-
tor (A) and ECM harness connector (B).
4. Check continuity between ICC brake hold relay harness connec-
tor (A) and ground.
OK or NG
OK >> GO TO 16.
NG >> 1. Repair harness between ICC brake hold relay and ECM.
2. Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system
again.
16. CHECK ICC BRAKE HOLD RELAY
With CONSULT-II
1. Connect ECM connector and ICC brake hold relay.
2. Disconnect stop lamp switch connector.
3. Perform “ACTIVE TEST” (“STOP LAMP”) with CONSULT-II, and make sure that stop lamp is illuminated.
OK or NG
OK >> GO TO 17.
NG >> 1. Replace ICC brake hold relay.
2. Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system
again.
17. CHECK STOP LAMP SWITCH WITH ABS DATA MONITOR
With CONSULT-II
With “ABS” “DATA MONITOR”, check if “STOP LAMP SW” are operates normally.
OK or NG
OK >> GO TO 18.
NG >> GO TO 20.
18. PERFORM ECM SELF-DIAGNOSIS
With CONSULT-II
1. Perform “ENGINE”self-diagnosis. Refer to EC-123, "
CONSULT-II Function (ENGINE)" (for VQ35DE) or
EC-826, "
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 >> GO TO 19.
AB
Continuity
Connector Terminal Connector Terminal
E80 5 M71 101 Yes
A
GroundContinuity
Connector Terminal
E80 5 No
PKIB9344E

TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS
ACS-55
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Revision: 2007 April2007 M35/M45
19. PERFORM ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) SELF-DIAGNOSIS
With CONSULT-II
1. Perform “ABS” self-diagnosis. Refer to BRC-23, "
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.
20. 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 21.
NG >> 1. Adjust stop lamp switch.
2. Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system
again.
21. CHECK STOP LAMP SWITCH
Check stop lamp switch. Refer to ACS-69, "
ICC Brake Switch and Stop Lamp Switch" .
OK or NG
OK >> GO TO 22.
NG >> 1. Replace stop lamp switch.
2. Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system
again.
22. 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 23.
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
Voltage
(Approx.) (+)
(–)
Stop lamp switch
connectorTe r m i n a l
E124 3 Ground Battery voltage
PKIC0833E

ACS-64
[ICC]
TROUBLE DIAGNOSIS FOR SYMPTOMS
Revision: 2007 April2007 M35/M45
Symptom 2: ICC System Cannot Be Set (MAIN Switch Turns ON/OFF)NKS004DL
The ICC system cannot be set in the following cases.

When the vehicle speed is not in range of approx. 25 MPH (40 km/h) to 90 MPH (144 km/h).

When the A/T selector lever is in “N”.

When A/T mode switch is at the snow mode position.

While the brake is in operation.

When wiper switch is at LOW/HI position.
1. CHECK CAUSE OF AUTOMATIC CANCELLATION
With CONSULT-II
With “CAUSE OF AUTO-CANCEL” in “WORK SUPPORT” at “ICC”, check if any cause of cancellation is
found.
Is any cause found?
YES >> Cancel with appropriate cause, and go to specified diagnosis.

“OPE SW VOLT CIRC”: Refer to ACS-48, "DTC 6 OPERATION SW CIRC" .

“VHCL SPD UNMATCH”: Refer to ACS-43, "DTC 3 VHCL SPEED SE CIRC" .

“IGN LOW VOLT”: Refer to ACS-42, "DTC 1 POWER SUPPLY CIR, DTC 2 POWER SUPPLY
CIR 2" .

“ECM CIRCUIT”: Refer to ACS-56, "DTC 14 ECM CIRCUIT" .
NO >> GO TO 2.
2. PERFORM ICC SENSOR INTEGRATED UNIT SELF-DIAGNOSIS
With CONSULT-II
Perform self-diagnosis to check for malfunctioning items.
Is malfunction indicated?
YES >> 1. Repair or replace applicable item. Refer to ACS-40, "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 3.
3. CHECK SWITCHES AND VEHICLE SPEED SIGNAL
With CONSULT-II
With “ICC” “DATA MONITOR”, check if switches and vehicle speed signal operate normally. Refer to ACS-31,
"DATA MONITOR" .

VHCL SPEED SE

D RANGE SW

BRAKE SW

SET/COAST SW
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 >> Check items which do not function normally.

VHCL SPEED SE. Refer to ACS-43, "DTC 3 VHCL SPEED SE CIRC" .

D RANGE SW. Refer to ACS-65, "Symptom 4: ICC System Is Not Cancelled When the A/T
Selector Lever Is In Other Than “D” and “M”" .

BRAKE SW. Refer to ACS-44, "DTC 5 BRAKE SW/STOP L SW" .

SET/COAST SW. Refer to ACS-48, "DTC 6 OPERATION SW CIRC" .

ELECTRICAL COMPONENT INSPECTION
ACS-69
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ELECTRICAL COMPONENT INSPECTIONPFP:00000
ICC Steering SwitchNKS004DS
1. Disconnect ICC steering switch.
2. Check resistance between terminals by pressing each switch.
ICC Brake Hold RelayNKS004DT
Check continuity between ICC brake hold relay terminals.
ICC Brake Switch and Stop Lamp SwitchNKS004DU

Check continuity between ICC brake switch terminals.

Check continuity between stop lamp switch terminals.
Check each switch after adjusting brake pedal, refer to BR-6,
"BRAKE PEDAL" .
Terminals Switch Condition Resistance [kΩ]
18 21MAINPressed Approx. 0
Released Approx. 5.5
CANCELPressed Approx. 0.3
Released Approx. 5.5
DISTANCEPressed Approx. 0.7
Released Approx. 5.5
SET/COASTPressed Approx. 1.4
Released Approx. 5.5
RESUME/ACCELERATE Pressed Approx. 2.6
Released Approx. 5.5
PKIB9345E
terminals condition Continuity
35Applying battery voltage to between ter-
minals 1 and 2Ye s
No battery voltage No
PKIB9346E
terminals Condition Continuity
12When brake pedal is depressed No
When brake pedal is released Yes
PKIC0597E
terminals Condition Continuity
12When brake pedal is depressed Yes
When brake pedal is released No
34When brake pedal is depressed Yes
When brake pedal is released No
PKIC0695E