Infiniti FX35, FX50 (S51). Manual — part 350
CCS-220
< DTC/CIRCUIT DIAGNOSIS >
[DCA]
C1A05 BRAKE SW/STOP LAMP SW
5.
CHECK ICC BRAKE HOLD RELAY
1.
Remove ICC brake hold relay.
2.
Check for continuity between ICC brake hold relay terminals.
Is the inspection result normal?
YES
>> GO TO 6.
NO
>> Replace ICC brake hold relay.
6.
CHECK HARNESS BETWEEN ICC BRAKE HOLD RELAY AND ICC BRAKE SWITCH
1.
Check for continuity between ICC brake hold relay harness connector and ICC brake switch harness con-
nector.
2.
Check for continuity between ICC brake hold relay harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 7.
NO
>> Repair the harnesses or connectors.
7.
CHECK HARNESS BETWEEN ECM AND ICC BRAKE SWITCH
1.
Disconnect ECM connector.
2.
Check for continuity between the ECM harness connector and ICC brake switch harness connector.
VQ35HR
VK50VE
3.
Check for continuity between ECM harness connector and ground.
VQ35HR
VK50VE
Is the inspection result normal?
ICC brake hold relay
Continuity
Terminal
3
4
Existed
ICC brake hold relay
ICC brake switch
Continuity
Connector
Terminal
Connector
Terminal
E91
4
E114
1
Existed
ICC brake hold relay
Ground
Continuity
Connector
Terminal
E91
4
Not existed
ECM
ICC brake switch
Continuity
Connector
Terminal
Connector
Terminal
M107
126
E114
2
Existed
ECM
ICC brake switch
Continuity
Connector
Terminal
Connector
Terminal
M160
117
E114
2
Existed
ECM
Ground
Continuity
Connector
Terminal
M107
126
Not existed
ECM
Ground
Continuity
Connector
Terminal
M160
117
Not existed
CCS
C1A05 BRAKE SW/STOP LAMP SW
CCS-221
< DTC/CIRCUIT DIAGNOSIS >
[DCA]
C
D
E
F
G
H
I
J
K
L
M
B
N
P
A
YES
>> GO TO 12.
NO
>> Repair the harnesses or connectors.
8.
CHECK STOP LAMP FOR ILLUMINATION
Check the stop lamp for illumination.
Is the inspection result normal?
YES
>> GO TO 9.
NO
>> Repair the stop lamp circuit.
9.
CHECK ICC BRAKE HOLD RELAY
1.
Turn ignition switch OFF.
2.
Remove ICC brake hold relay.
3.
Check for continuity between ICC brake hold relay terminals.
Is the inspection result normal?
YES
>> GO TO 10.
NO
>> Replace ICC brake hold relay.
10.
CHECK HARNESS BETWEEN ECM AND ICC BRAKE HOLD RELAY
1.
Disconnect ECM, rear combination lamp, and high-mounted stop lamp connectors.
2.
Check for continuity between the ECM harness connector and ICC brake hold relay harness connector.
VQ35HR
VK50VE
3.
Check for continuity between ECM harness connector and ground.
VQ35HR
VK50VE
Is the inspection result normal?
YES
>> GO TO 11.
NO
>> Repair the harnesses or connectors.
11.
CHECK HARNESS BETWEEN BRAKE BOOSTER CONTROL UNIT AND ICC BRAKE HOLD RELAY
1.
Disconnect brake booster control unit connector.
2.
Check for continuity between the brake booster control unit harness connector and brake hold relay har-
ness connector.
ICC brake hold relay
Continuity
Terminal
3
4
Existed
7
6
Not existed
ECM
ICC brake hold relay
Continuity
Connector
Terminal
Connector
Terminal
M107
122
E91
6
Existed
ECM
ICC brake hold relay
Continuity
Connector
Terminal
Connector
Terminal
M160
110
E91
6
Existed
ECM
Ground
Continuity
Connector
Terminal
M107
122
Not existed
ECM
Ground
Continuity
Connector
Terminal
M160
110
Not existed
CCS-222
< DTC/CIRCUIT DIAGNOSIS >
[DCA]
C1A05 BRAKE SW/STOP LAMP SW
3.
Check for continuity between brake booster control unit harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 12.
NO
>> Repair the harnesses or connectors.
12.
PERFORM SELF-DIAGNOSIS OF ECM
1.
Connect all connectors again if the connectors are disconnected.
2.
Turn ignition switch ON.
3.
Perform “All DTC Reading”.
4.
Check if any DTC is detected in “Self Diagnostic Result” of “ENGINE”. Refer to
(VK50VE).
Is any DTC detected?
YES
>> Repair or replace the malfunctioning parts identified by the self-diagnosis result.
NO
>> GO TO 13.
13.
CHECK ICC BRAKE HOLD RELAY DRIVE SIGNAL OUTPUT
1.
Select the active test item “STOP LAMP” of “ICC”.
2.
Check if “STP LMP DRIVE” is turned ON when operating the test item.
Is the inspection result normal?
YES
>> Replace brake booster control unit.
NO
>> Replace ICC sensor integrated unit. Refer to
Component Inspection (ICC Brake Switch)
INFOID:0000000005501804
1.
CHECK ICC BRAKE SWITCH
Check for continuity between ICC brake switch terminals.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Replace ICC brake switch.
Component Inspection (Stop Lamp Switch)
INFOID:0000000005501805
1.
CHECK STOP LAMP SWITCH
Check for continuity between stop lamp switch terminals.
Is the inspection result normal?
Brake booster control unit
ICC brake hold relay
Continuity
Connector
Terminal
Connector
Terminal
B249
47
E91
1
Existed
Brake booster control unit
Ground
Continuity
Connector
Terminal
B249
47
Not existed
Terminal
Condition
Continuity
1
2
When brake pedal is depressed
Not exist-
ed
When brake pedal is released
Existed
Terminal
Condition
Continuity
1
2
When brake pedal is depressed
Existed
When brake pedal is released
Not exist-
ed
CCS
C1A05 BRAKE SW/STOP LAMP SW
CCS-223
< DTC/CIRCUIT DIAGNOSIS >
[DCA]
C
D
E
F
G
H
I
J
K
L
M
B
N
P
A
YES
>> INSPECTION END
NO
>> Replace stop lamp switch.
Special Repair Requirement
INFOID:0000000005501806
DESCRIPTION
Perform the action test after adjusting the laser beam aiming of ICC sensor integrated unit when the following
operation is performed.
• Removal and installation of ICC sensor integrated unit
• Replacement of ICC sensor integrated unit
SPECIAL REPAIR REQUIREMENT
1.
LASER BEAM AIMING ADJUSTMENT OF ICC SENSOR INTEGRATED UNIT
Adjust the laser beam aiming of the ICC sensor integrated unit. Refer to
>> GO TO 2.
2.
CHECK DCA SYSTEM
1.
Erase the “self-diagnosis results”, and then perform “All DTC Reading” again after performing the action
test. (Refer to
CCS-191, "ACTION TEST : Description"
for action test.)
2.
Check that the DCA system is normal.
>> WORK END
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