Infiniti FX35, FX50 (S51). Manual — part 355
CCS-240
< DTC/CIRCUIT DIAGNOSIS >
[DCA]
C1A13 STOP LAMP RELAY
YES
>> Perform the CAN communication system inspection. Repair or replace the malfunctioning parts.
CCS-313, "ICC SENSOR INTEGRATED UNIT : DTC Logic"
.
NO
>> GO TO 2.
2.
CHECK STOP LAMP SWITCH AND ICC BRAKE SWITCH
Check that “STOP LAMP SW” and “BRAKE SW” operate normally in “DATA MONITOR” of “ICC”.
Is the inspection result normal?
YES
>> GO TO 12.
NO-1
>> When “BRAKE SW” operation is malfunctioning: GO TO 3.
NO-2
>> When “STOP LAMP SW” operation is malfunctioning: GO TO 9.
3.
CHECK ICC BRAKE SWITCH INSTALLATION
1.
Turn ignition switch OFF.
2.
Check ICC brake switch for correct installation. Refer to
BR-7, "Inspection and Adjustment"
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> Adjust ICC brake switch installation. Refer to
BR-7, "Inspection and Adjustment"
4.
CHECK ICC BRAKE SWITCH
1.
Disconnect ICC brake switch connector.
2.
Check ICC brake switch. Refer to
CCS-222, "Component Inspection (ICC Brake Switch)"
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> Replace ICC brake switch.
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.
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
CCS
C1A13 STOP LAMP RELAY
CCS-241
< DTC/CIRCUIT DIAGNOSIS >
[DCA]
C
D
E
F
G
H
I
J
K
L
M
B
N
P
A
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?
YES
>> GO TO 8.
NO
>> Repair the harnesses or connectors.
8.
CHECK ICC BRAKE HOLD RELAY POWER SUPPLY CIRCUIT
1.
Connect ECM connector.
2.
Turn the ignition switch ON.
3.
Check the voltage between ICC brake hold relay harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 20.
NO
>> Repair ICC brake hold relay power supply circuit.
9.
CHECK STOP LAMP FOR ILLUMINATION
1.
Turn the ignition switch OFF.
2.
Remove ICC brake hold relay.
3.
Check that the stop lamp is illuminated by depressing the brake pedal to turn the stop lamp ON.
Is the inspection result normal?
YES
>> GO TO 10.
NO
>> Check the stop lamp circuit, and repair or replace the malfunctioning parts.
10.
CHECK ICC BRAKE HOLD RELAY CIRCUIT
1.
Connect ICC brake hold relay.
2.
Disconnect the stop lamp switch connector.
3.
Check that the stop lamp does not illuminate when brake pedal is not depressed.
Is the inspection result normal?
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
Terminals
Voltage
(Approx.)
(+)
(–)
ICC brake hold relay
Ground
Connector
Terminal
E91
3
Battery
voltage
CCS-242
< DTC/CIRCUIT DIAGNOSIS >
[DCA]
C1A13 STOP LAMP RELAY
YES
>> GO TO 20.
NO
>> GO TO 11.
11.
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 20.
NO
>> Replace ICC brake hold relay.
12.
CHECK HARNESS BETWEEN BRAKE BOOSTER CONTROL UNIT AND ICC BRAKE HOLD RELAY
1.
Turn ignition switch OFF.
2.
Disconnect brake booster control unit connector and remove ICC brake hold relay.
3.
Check for continuity between the brake booster control unit harness connector and ICC brake hold relay
harness connector.
4.
Check for continuity between brake booster control unit harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 13.
NO
>> Repair the harnesses or connectors.
13.
CHECK HARNESS BETWEEN ICC BRAKE HOLD RELAY AND GROUND
Check for continuity between ICC brake hold relay harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 14.
NO
>> Repair the harnesses or connectors.
14.
CHECK ICC BRAKE HOLD RELAY
Check resistance between ICC brake hold relay terminals.
Is the inspection result normal?
YES
>> GO TO 15.
NO
>> Replace ICC brake hold relay.
ICC brake hold relay
Continuity
Terminal
7
6
Not existed
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
ICC brake hold relay
Ground
Continuity
Connector
Terminal
E91
2
Existed
ICC brake hold relay
Resistance
Terminal
1
2
Approx. 75
Ω
CCS
C1A13 STOP LAMP RELAY
CCS-243
< DTC/CIRCUIT DIAGNOSIS >
[DCA]
C
D
E
F
G
H
I
J
K
L
M
B
N
P
A
15.
CHECK BRAKE BOOSTER CONTROL UNIT OUTPUT VOLTAGE
1.
Connect the brake booster control unit connector.
2.
Turn ignition switch ON.
3.
Perform “STOP LAMP” on “Active Test” of “ICC”, and then check the voltage between ICC brake hold
relay harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 16.
NO
>> GO TO 21.
16.
CHECK ICC BRAKE HOLD RELAY POWER SUPPLY CIRCUIT
1.
Turn ignition switch OFF.
2.
Check the voltage between ICC brake hold relay harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 17.
NO
>> Repair or replace ICC brake hold relay power supply circuit.
17.
CHECK HARNESS BETWEEN ICC BRAKE HOLD RELAY AND ECM
1.
Disconnect ECM, rear combination lamp, and high-mounted stop lamp connectors.
2.
Check for continuity between ICC brake hold relay harness connector and ECM harness connector.
VQ35HR
VK50VE
3.
Check for continuity between ICC brake hold relay harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 18.
Terminal
Condition
Voltage
(Approx.)
(+)
(–)
ICC brake hold relay
Ground
Active Test
item
“STOP LAMP”
Connector
Terminal
E91
1
Off
0 V
On
Battery
voltage
Terminal
Voltage
(Approx.)
(+)
(–)
ICC brake hold relay
Ground
Connector
Terminal
E91
7
Battery
voltage
ICC brake hold relay
ECM
Continuity
Connector
Terminal
Connector
Terminal
E91
6
M107
122
Existed
ICC brake hold relay
ECM
Continuity
Connector
Terminal
Connector
Terminal
E91
6
M160
110
Existed
ICC brake hold relay
Ground
Continuity
Connector
Terminal
E91
6
Not existed
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