Infiniti FX35, FX50 (S51). Manual - part 355

 

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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.

Refer to 

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 

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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