Infiniti G37 Coupe. Manual — part 310
CCS
C1A13 STOP LAMP RELAY
CCS-53
< COMPONENT DIAGNOSIS >
[INTELLIGENT CRUISE CONTROL]
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2.
Check stop lamp switch for proper installation. Refer to
BR-7, "Inspection and Adjustment"
.
Is the inspection result normal?
YES
>> GO TO 33.
NO
>> GO TO 32.
32.
ADJUST STOP LAMP SWITCH
Adjust stop lamp switch. Refer to
BR-7, "Inspection and Adjustment"
>> GO TO 42.
33.
CHECK STOP LAMP SWITCH
1.
Disconnect stop lamp switch connector.
2.
Check stop lamp switch. Refer to
CCS-43, "Component Inspection (STOP LAMP SWITCH)"
.
Is the inspection result normal?
YES
>> GO TO 35.
NO
>> GO TO 34.
34.
REPLACE STOP LAMP SWITCH
Replace stop lamp switch.
>> GO TO 42.
35.
CHECK STOP LAMP SWITCH POWER SUPPLY CIRCUIT
1.
Turn ignition switch ON.
2.
Check voltage between stop lamp switch harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 37.
NO
>> GO TO 36.
36.
REPAIR OR REPLACE STOP LAMP SWITCH HARNESS OR FUSE
Repair or replace stop lamp switch power supply harness or fuse.
>> GO TO 42.
37.
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 and ABS actuator and electric unit (control
unit) harness connector.
Is the inspection result normal?
OK
>> GO TO 39.
NG
>> GO TO 38.
Terminals
Voltage
(Approx.)
(+)
(–)
Stop lamp switch
connector
Terminal
E110
3
Ground
Battery voltage
Stop lamp switch
ABS actuator and electric unit
(control unit)
Continuity
Connector
Terminal Connector
Terminal
E110
4
E41
30
Existed
CCS-54
< COMPONENT DIAGNOSIS >
[INTELLIGENT CRUISE CONTROL]
C1A13 STOP LAMP RELAY
38.
REPAIR OR REPLACE HARNESS BETWEEN STOP LAMP SWITCH AND ABS ACTUATOR AND ELEC-
TRIC UNIT (CONTROL UNIT)
Repair or replace harness between stop lamp switch and ABS actuator and electric unit (control unit).
>> GO TO 42.
39.
PERFORM SELF-DIAGNOSIS OF ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)
1.
Perform self-diagnosis of ABS actuator and electric unit (control unit).
2.
Check if DTC is detected. Refer to
.
>> GO TO 40.
40.
REPAIR OR REPLACE APPLICABLE ITEM
Repair or replace the applicable item identified by the self-diagnosis result.
>> GO TO 42.
41.
REPLACE ICC SENSOR UNTEGRATED UNIT
1.
Replace ICC sensor integrated unit.
2.
Adjust laser beam aiming. Refer to
CCS-7, "LASER BEAM AIMING ADJUSTMENT : Special Repair
.
>> GO TO 42.
42.
CHECK ICC SYSTEM
1.
Erase DTC and perform ICC system action test. Then perform self-diagnosis of ICC sensor integrated
unit. (For the details on the ICC system action test, refer to
CCS-11, "ACTION TEST : Special Repair
Requirement (Vehicle-To-Vehicle Distance Control Mode)"
).
2.
Check that no abnormal condition is present in the ICC system.
>> INSPECTION END
Component Inspection
INFOID:0000000001606900
1.
CHECK ICC BRAKE HOLD RELAY
Check continuity between ICC brake hold relay terminals.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Replace ICC brake hold relay.
terminals
condition
Continuity
3
5
Applying battery voltage to between ter-
minals 1 and 2
Existed
No battery voltage
Not existed
JSOIA0075GB
CCS
C1A14 ECM
CCS-55
< COMPONENT DIAGNOSIS >
[INTELLIGENT CRUISE CONTROL]
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C1A14 ECM
Description
INFOID:0000000001606901
• ECM transmits the accelerator pedal position signal, ICC brake switch signal, stop lamp switch signal and
ICC steering switch signal, etc. to the ICC sensor integrated unit with CAN communication.
• ECM controls the electronic control throttle based on the engine torque demand received from the ICC sen-
sor integrated unit with CAN communication.
NOTE:
If DTC C1A14 is detected along with DTC U1000, first diagnose the DTC U1000. Refer to
.
DTC Logic
INFOID:0000000001606902
DTC DETECTION LOGIC
Diagnosis Procedure
INFOID:0000000001606903
1.
PERFORM SELF-DIAGNOSIS OF ICC SENSOR INTEGRATED UNIT
1.
Perform self-diagnosis of ICC sensor integrated unit.
2.
Check if DTC “CAN COMM CIRCUIT [U1000]” (DTC 100) other than “ECM CIRCUIT [C1A14]” (DTC 14)
is detected.
Is any DTC detected?
YES
>> GO TO 2.
NO
>> GO TO 3.
2.
CAN COMMUNICATION INSPECTION
Perform the CAN communication system inspection. Repair or replace the applicable item. Refer to
.
>> GO TO 6.
3.
PERFORM SELF-DIAGNOSIS OF ECM
1.
Perform self-diagnosis of ECM.
2.
Check if DTC is detected. Refer to
.
Is any DTC detected?
YES
>> GO TO 4.
NO
>> GO TO 5.
4.
REPAIR OR REPLACE APPLICABLE ITEM
Repair or replace the applicable item identified by the self-diagnosis result.
>> GO TO 6.
5.
REPLACE ICC SENSOR INTEGRATED UNIT
1.
Replace ICC sensor integrated unit
2.
Adjust laser beam aiming. Refer to
CCS-7, "LASER BEAM AIMING ADJUSTMENT : Special Repair
.
>> GO TO 6.
DTC No.
(On board
display)
Trouble diagnosis name
DTC detecting condition
Possible cause
C1A14
(14)
ECM CIRCUIT
If an abnormal condition occurs with ECM.
• Accelerator pedal position sensor
• ECM
• ICC sensor integrated unit
CCS-56
< COMPONENT DIAGNOSIS >
[INTELLIGENT CRUISE CONTROL]
C1A14 ECM
6.
CHECK ICC SYSTEM
1.
Erase DTC and perform ICC system action test. Then perform self-diagnosis of ICC sensor integrated
unit. (For the details on the ICC system action test, refer to
CCS-11, "ACTION TEST : Special Repair
Requirement (Vehicle-To-Vehicle Distance Control Mode)"
).
2.
Check that no abnormal condition is present in the ICC system.
>> INSPECTION END
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