Infiniti M35/M45 Y50. Manual — part 13
TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS
ACS-45
[ICC]
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5.
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.
6.
CHECK ICC BRAKE SWITCH INSTALLATION AND ADJUSTMENT
Check ICC brake switch for proper installation, and adjust the switch if necessary. Refer to
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-69, "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.
Terminals
Voltage
(Approx.)
(+)
(–)
ICC brake switch
connector
Terminal
E111
1 Ground
Battery
voltage
PKIB9335E
ACS-46
[ICC]
TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS
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-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 STOP LAMP SWITCH INSTALLATION AND ADJUSTMENT
Check stop lamp switch for proper installation, and adjust the switch if necessary. Refer to
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-69, "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.
A
B
Continuity
Connector
Terminal Connector
Terminal
E111
2
M71
108
Yes
A
Ground
Continuity
Connector
Terminal
E111
2
No
PKIB9336E
TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS
ACS-47
[ICC]
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ACS
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-23, "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.
Terminals
Voltage
(Approx.)
(+)
(–)
Stop lamp switch
connector
Terminal
E124
3
Ground
Battery voltage
PKIC0833E
A
B
Continuity
Connector
Terminal Connector
Terminal
E124
4
E30
30
Yes
A
Ground
Continuity
Connector
Terminal
E124
4
No
PKIC0834E
ACS-48
[ICC]
TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS
DTC 6 OPERATION SW CIRC
NKS004D5
1.
PERFORM ICC SENSOR INTEGRATED UNIT SELF-DIAGNOSIS
1.
Perform self-diagnosis.
2.
Check if “CAN COMM CIRCUIT [U1000]” (DTC 100) other than “OPERATION SW CIRC [C1A06]” (DTC
6) 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 “OPERATION SW CIRC [C1A06]” (DTC 6) 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 ICC STEERING SWITCH
1.
Turn ignition switch OFF.
2.
Check ICC steering switch. Refer to
OK or NG
OK
>> GO TO 4.
NG
>> 1. Replace ICC steering switch.
2. Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system
again.
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