Infiniti FX35 / FX45. Manual — part 11
ACS-38
< SERVICE INFORMATION >
[ICC]
TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS
2.
Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system
again.
NO
>> GO TO 2.
2.
CHECK AT VEHICLE SPEED SENSOR
With “Data Monitor” of “ICC”, check “VHCL SPD AT” operates normally.
OK or NG
OK
>> 1.
Replace ICC unit.
2.
Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system
again.
NG
>> 1.
Perform self-diagnosis of TCM.
2.
After repairing or replacing applicable item, erase DTC and perform ICC system running test.
Then perform self-diagnosis of ICC system again.
DTC 43 ABS/TCS/VDC CIRC
INFOID:0000000001328830
1.
PERFORM SELF-DIAGNOSIS OF ICC SYSTEM
1.
Perform self-diagnosis of ICC system.
2.
Check if “DTC 20 CAN COMM CIRCUIT” other than “DTC 43 ABS/TCS/VDC CIRC” is indicated in self-
diagnosis item in the display.
Is it 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 2.
2.
PERFORM SELF-DIAGNOSIS OF ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)
1.
Perform self-diagnosis of ABS actuator and electric unit (control unit). Refer to
.
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 unit.
2.
Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system
again.
DTC 45 BRAKE SW/STOP L SW
INFOID:0000000001328831
1.
CHECK CONNECTOR FOR ICC UNIT
1.
Turn ignition switch OFF.
2.
Disconnect ICC unit connector, and connect it securely again.
3.
Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system again.
Is malfunction indicated?
YES
>> GO TO 2.
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.
2.
CHECK STOP LAMP SWITCH AND ICC BRAKE SWITCH
With “Data Monitor” of “ICC”, check if “STOP LAMP SW” and “BRAKE SW” are operated normally.
OK or NG
OK
>> 1.
Replace ICC unit.
2.
Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system
again.
NG-1
>> “BRAKE SW” NG: GO TO 3.
TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS
ACS-39
< SERVICE INFORMATION >
[ICC]
C
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ACS
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NG-2
>> “STOP LAMP SW” NG: GO TO 5.
3.
CHECK BRAKE SWITCH INSTALLATION AND ADJUSTMENT
Check brake switch for proper installation, and adjust the switch if necessary. Refer to
.
OK or NG
OK
>> GO TO 4.
NG
>> After adjustment, erase DTC and perform ICC system running test. Then perform self-diagnosis
of ICC system again.
4.
CHECK ICC BRAKE SWITCH
Check ICC brake switch. Refer to
ACS-64, "ICC Brake Switch and Stop Lamp Switch"
.
OK or NG
OK
>> 1.
Replace ICC unit.
2.
Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system
again.
NG
>> 1.
Replace ICC brake switch.
2.
Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system
again.
5.
CHECK STOP LAMP ILLUMINATION
Check stop lamp illumination.
OK or NG
OK
>> GO TO 6.
NG
>> 1.
Check stop lamp circuit.
2.
After repairing, erase DTC and perform ICC system running test. Then perform self-diagnosis
of ICC system again.
6.
CHECK ICC BRAKE HOLD RELAY
1.
Turn ignition switch OFF.
2.
Remove ICC brake hold relay.
3.
Check ICC brake hold relay. Refer to
ACS-64, "ICC Brake Hold Relay"
OK or NG
OK
>> GO TO 7.
NG
>> 1.
Replace brake hold relay.
2.
Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system
again.
7.
CHECK ICC BRAKE HOLD RELAY CIRCUIT
1.
Disconnect ICC unit connector and stop lamp switch connector.
2.
Check continuity between ICC unit harness connector and ICC
brake hold relay harness connector.
3.
Check continuity between ICC unit harness connector and
ground.
OK or NG
OK
>> GO TO 8.
NG
>> 1.
Repair harness between ICC unit and ICC brake hold relay.
2.
Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system
again.
8.
CHECK STOP LAMP SWITCH CIRCUIT
ICC unit connector
Terminal
ICC brake hold relay
connector
Terminal
Continuity
M89
38
E14
7
Yes
ICC unit connector
Terminal
Ground
Continuity
M89
38
No
PKIA9907E
ACS-40
< SERVICE INFORMATION >
[ICC]
TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS
Check continuity between ICC unit harness connector and stop lamp
switch harness connector.
OK or NG
OK
>> 1.
Replace ICC unit.
2.
Erase DTC and perform ICC system running test.
Then perform self-diagnosis of ICC system again.
NG
>> 1.
Repair harness between ICC unit and stop lamp
switch.
2.
Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system
again.
DTC 46 OPERATION SW CIRC
INFOID:0000000001328832
1.
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.
Is malfunction indicated?
YES
>> GO TO 2.
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.
2.
CHECK ICC STEERING SWITCH
Check ICC steering switch. Refer to
OK or NG
OK
>> GO TO 3.
NG
>> 1.
Replace ICC steering switch.
2.
Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system
again.
3.
CHECK ICC STEERING SWITCH SIGNAL CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect ECM connector and spiral cable connector.
3.
Check continuity between spiral cable harness connector and
ECM harness connector.
ICC unit connector
Terminal
Stop lamp switch
connector
Terminal
Continuity
M89
38
E210
2
Yes
PKIB4163E
Spiral cable
connector
Terminal
ECM connector
Terminal
Continuity
M15
33
M90
82
Yes
34
99
PKIB4164E
TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS
ACS-41
< SERVICE INFORMATION >
[ICC]
C
D
E
F
G
H
I
J
L
M
A
B
ACS
N
O
P
4.
Check continuity between spiral cable harness connector and
ground.
OK or NG
OK
>> GO TO 4.
NG
>> 1.
Repair harness between ECM and spiral cable.
2.
Erase DTC and perform ICC system running test.
Then perform self-diagnosis of ICC system again.
4.
CHECK SPIRAL CABLE
Check continuity between spiral cable connector terminals.
OK or NG
OK
>> 1.
Perform self-diagnosis of ECM.
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 61 PRESS SEN CIRCUIT
INFOID:0000000001328833
1.
CHECK CONNECTOR BRAKE PRESSURE SENSOR AND ICC UNIT
1.
Turn ignition switch OFF.
2.
Disconnect brake pressure sensor connector and ICC unit connector, and connect them securely again.
3.
Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system again.
Is malfunction indicated?
YES
>> GO TO 2.
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.
2.
CHECK HARNESS BETWEEN BRAKE PRESSURE SENSOR AND ICC UNIT
1.
Turn ignition switch OFF.
2.
Disconnect ICC unit connector and brake pressure sensor con-
nector.
3.
Check continuity between brake pressure sensor harness con-
nector and ICC unit harness connector.
Spiral cable
connector
Terminal
Ground
Continuity
M15
33
No
34
PKIB4165E
Spiral cable
connector
Terminal
Spiral cable
connector
Terminal
Continuity
M15
33
M203
14
Yes
34
15
PKIB4166E
Brake pressure
sensor connector
Terminal
ICC unit
connector
Terminal
Continuity
E142
1
M88
24
Yes
2
17
3
8
SKIA6652E
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