Infiniti G37 Coupe. Manual - part 306

CCS

C1A05 BRAKE SW/STOP LAMP SW

CCS-37

< COMPONENT DIAGNOSIS >

[INTELLIGENT CRUISE CONTROL]

C

D

E

F

G

H

I

J

K

L

M

B

N

P

A

YES

>> GO TO 20.

NO

>> GO TO 19.

19.

REPLACE STOP LAMP SWITCH

Replace stop lamp switch.

>> GO TO 27.

20.

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 22.

NO

>> GO TO 21.

21.

REPAIR OR REPLACE STOP LAMP SWITCH HARNESS OR FUSE

Repair or replace stop lamp switch power supply harness or fuse.

>> GO TO 27.

22.

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?

YES

>> GO TO 24.

NO

>> GO TO 23.

23.

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 27.

24.

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 

BRC-88, "DTC No. Index"

.

>> GO TO 25.

25.

REPAIR OR REPLACE APPLICABLE ITEM

Repair or replace the applicable item identified by the self-diagnosis result.

Terminal

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-38

< COMPONENT DIAGNOSIS >

[INTELLIGENT CRUISE CONTROL]

C1A05 BRAKE SW/STOP LAMP SW

>> GO TO 27.

26.

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

Requirement (Preparation)"

.

>> GO TO 27.

27.

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

Diagnosis Procedure (M/T Models)

INFOID:0000000001606886

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), “ECM CAN CIR 1 [U0401]” (DTC 120), “VDC
CAN CIR 1 [U0415]” (DTC 126) or “VDC CON CIR 2 [U0121]” (DTC 127) other than “BRAKE SW/STOP L
SW [C1A05]” (DTC 5) is detected.

Is any DTC detected?

YES

>> GO TO 2.

NO

>> GO TO 3.

2.

DIAGNOSIS FOR DETECTED DTC

Perform diagnosis on the detected DTC and repair or replace the applicable item. Refer to 

CCS-92, "DTC

Index"

.

>> GO TO 33.

3.

CHECK ICC BRAKE SWITCH WITH ICC DATA MONITOR

With CONSULT-III

With “Data Monitor” of “ICC”, check if “BRAKE SW” operates normally. 

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> GO TO 7.

4.

CHECK STOP LAMP SWITCH WITH ABS DATA MONITOR

With CONSULT-III

With “Data Monitor” of “ABS”, check if “STOP LAMP SW” operates normally. 

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> GO TO 22.

5.

PERFORM SELF-DIAGNOSIS OF ECM

1.

Perform self-diagnosis of ECM.

2.

Check if DTC is detected. Refer to 

EC-552, "DTC Index"

.

Is any DTC detected?

YES

>> GO TO 31.

NO

>> GO TO 6.

6.

PERFORM SELF-DIAGNOSIS OF ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)

CCS

C1A05 BRAKE SW/STOP LAMP SW

CCS-39

< COMPONENT DIAGNOSIS >

[INTELLIGENT CRUISE CONTROL]

C

D

E

F

G

H

I

J

K

L

M

B

N

P

A

1.

Perform self-diagnosis of ABS actuator and electric unit (control unit).

2.

Check if DTC is detected. Refer to 

BRC-88, "DTC No. Index"

.

Is any DTC detected?

YES

>> GO TO 31.

NO

>> GO TO 32.

7.

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.

Is the inspection result normal?

YES

>> GO TO 15.

NO

>> GO TO 8.

8.

CHECK ICC CLUTCH SWITCH POWER SUPPLY CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect ICC clutch switch connector.

3.

Turn ignition switch ON.

4.

Check voltage between ICC clutch switch harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 10.

NO

>> GO TO 9.

9.

REPAIR OR REPLACE ICC CLUTCH SWITCH HARNESS OR FUSE

Repair or replace ICC clutch switch power supply harness or fuse.

>> GO TO 33.

10.

CHECK ICC CLUTCH SWITCH INSTALLATION

1.

Turn ignition switch OFF.

2.

Check ICC clutch switch for proper installation. Refer to 

CL-5, "Inspection and Adjustment"

.

Is the inspection result normal?

YES

>> GO TO 12.

NO

>> GO TO 11.

11.

ADJUST ICC CLUTCH SWITCH

Adjust ICC clutch switch. Refer to 

CL-5, "Inspection and Adjustment"

.

>> GO TO 33.

Terminal

Condition

Voltage

(Approx.)

(+)

(–)

ICC brake switch 
connector

Terminal

E114

1 Ground

Clutch pedal released

Battery voltage

Clutch pedal de-
pressed

0 V

Terminal

Voltage

(Approx.)

(+)

(–)

ICC clutch switch 
connector

Terminal

E113

1 Ground

Battery 

voltage

CCS-40

< COMPONENT DIAGNOSIS >

[INTELLIGENT CRUISE CONTROL]

C1A05 BRAKE SW/STOP LAMP SW

12.

CHECK ICC CLUTCH SWITCH

Check ICC clutch switch. Refer to 

CCS-42, "Component Inspection (ICC BRAKE SWITCH)"

.

Is the inspection result normal?

YES

>> GO TO 14.

NO

>> GO TO 13.

13.

REPLACE ICC CLUTCH SWITCH

Replace ICC clutch switch.

>> GO TO 33.

14.

REPAIR OR REPLACE HARNESS BETWEEN ICC BRAKE SWITCH AND ICC CLUTCH SWITCH

Repair or replace harness between ICC brake switch and ICC clutch switch.

>> GO TO 33.

15.

CHECK ICC BRAKE SWITCH INSTALLATION

1.

Turn ignition switch OFF.

2.

Check ICC brake switch for proper installation. Refer to 

BR-7, "Inspection and Adjustment"

.

Is the inspection result normal?

YES

>> GO TO 17.

NO

>> GO TO 16.

16.

ADJUST ICC BRAKE SWITCH

Adjust ICC brake switch. Refer to 

BR-7, "Inspection and Adjustment"

.

>> GO TO 33.

17.

CHECK ICC BRAKE SWITCH

1.

Turn ignition switch OFF.

2.

Check ICC brake switch. Refer to 

CCS-43, "Component Inspection (ICC CLUTCH SWITCH)"

.

Is the inspection result normal?

YES

>> GO TO 19.

NO

>> GO TO 18.

18.

REPLACE ICC BRAKE SWITCH

Replace ICC brake switch.

>> GO TO 33.

19.

CHECK HARNESS BETWEEN ICC BRAKE SWITCH AND ECM

1.

Disconnect ECM connector.

2.

Check continuity between ICC brake switch harness connector and ECM harness connector.

Is the inspection result normal?

YES

>> GO TO 21.

NO

>> GO TO 20.

20.

REPAIR OR REPLACE HARNESS BETWEEN ICC CLUTCH SWITCH AND ECM

Repair or replace harness between ICC clutch switch and ECM.

ICC brake switch

ECM

Continuity

Connector

Terminal Connector

Terminal

E114

2

M107

126

Existed