Infiniti FX35 / FX45. Manual - part 13

 

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Infiniti FX35 / FX45. Manual - part 13

 

 

ACS-46

< SERVICE INFORMATION >

[ICC]

TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS

2.

Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system
again.

NO

>> INSPECTION END

DTC 90 STOP LAMP RLY FIX

INFOID:0000000001328838

1.

CHECK CONNECTOR ICC UNIT 

1.

Turn ignition switch OFF.

2.

Disconnect ICC unit connector, and connect it securely again.

3.

Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system again.

Is malfunction indicated?

YES

>> GO TO 2.

NO

>>

Poor connector connection

1.

Check connector (Check connector housing for disconnected, loose, bent, and collapsed ter-
minals. If any malfunction is detected, repair applicable part).

2.

Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system
again.

2.

CHECK STOP LAMP SWITCH AND ICC BRAKE SWITCH

With “Data Monitor” of “ICC”, check that “STOP LAMP SW” and “BRAKE SW” operate normally.

OK or NG

OK

>> GO TO 12.

NG-1

>> “BRAKE SW” NG: GO TO 3.

NG-2

>> “STOP LAMP SW” NG: GO TO 9.

3.

CHECK BRAKE SWITCH INSTALLATION AND ADJUSTMENT

Check brake switch for proper installation, and adjust the switch if necessary. Refer to 

BR-5, "Inspection and

Adjustment"

.

OK or NG

OK

>> GO TO 4.

NG

>> After adjustment, erase DTC and perform ICC system running test. Then perform self-diagnosis

of ICC system again.

4.

CHECK ICC BRAKE SWITCH AND STOP LAMP SWITCH

Check ICC brake switch and stop lamp switch. Refer to 

ACS-64, "ICC Brake Switch and Stop Lamp Switch"

.

OK or NG

OK

>> GO TO 5.

NG

>> 1.

Replace ICC brake switch.

2.

Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system
again.

5.

CHECK ICC BRAKE HOLD RELAY 

1.

Turn ignition switch OFF.

2.

Disconnect ICC brake hold relay.

3.

Check ICC brake hold relay. Refer to 

ACS-64, "ICC Brake Hold Relay"

OK or NG

OK

>> GO TO 6.

NG

>> 1.

Replace ICC brake hold relay.

2.

Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system
again.

6.

CHECK HARNESS BETWEEN ICC BRAKE HOLD RELAY AND ICC BRAKE SWITCH

1.

Disconnect ICC brake switch connector and ICC unit connector.

TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS

ACS-47

< SERVICE INFORMATION >

[ICC]

C

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F

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ACS

N

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2.

Check continuity between ICC brake hold relay harness connec-
tor and ICC brake switch harness connector.

3.

Check continuity between ICC brake hold relay harness connec-
tor and ground.

OK or NG

OK

>> GO TO 7.

NG

>> 1.

Repair harness between ICC brake hold relay and ICC brake switch.

2.

Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system
again.

7.

CHECK HARNESS BETWEEN ICC UNIT AND ICC BRAKE HOLD RELAY

1.

Disconnect ECM connector.

2.

Check continuity between ICC unit harness connector and ICC
brake hold relay harness connector. 

3.

Check continuity between ICC unit harness connector and
ground.

OK or NG

OK

>> GO TO 8.

NG

>> 1.

Repair harness between ICC unit and ICC brake hold relay.

2.

Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system
again.

8.

CHECK ICC BRAKE SWITCH POWER SUPPLY CIRCUIT 

1.

Turn ignition switch ON.

2.

Check voltage between ICC brake switch harness connector
and ground.

OK or NG

OK

>> 1.

Replace ICC unit.

2.

Erase DTC and perform ICC system running test.
Then perform self-diagnosis of ICC system again.

NG

>> 1.

Repair or replace harness or fuse.

2.

Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system
again.

9.

CHECK STOP LAMP ILLUMINATION

ICC brake hold 

relay connector

Terminal

ICC brake switch 

connector

Terminal

Continuity

E14

3

E209

2

Yes

ICC brake hold 

relay connector

Terminal

Ground

Continuity

E14

3

No

PKIB4167E

ICC unit connector

Terminal

ICC brake hold relay 

connector

Terminal

Continuity

M89

29

E14

4

Yes

ICC unit connector

Terminal

Ground

Continuity

M89

29

No

SKIA5980E

ICC brake switch 

connector

Terminal

Voltage (Approx.)

(+)

(

)

E209

1

Ground

Battery voltage

PKIB4168E

ACS-48

< SERVICE INFORMATION >

[ICC]

TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS

1.

Turn ignition switch OFF.

2.

Disconnect ICC brake hold relay.

3.

Check stop lamp circuit.

OK or NG

OK

>> GO TO 10.

NG

>> After repairing, erase DTC and perform ICC system running test. Then perform self-diagnosis of

ICC system again.

10.

CHECK ICC BRAKE HOLD RELAY CIRCUIT 

1.

Connect ICC brake hold relay connector.

2.

Disconnect stop lamp switch connector.

3.

When brake pedal is not depressed, make sure that stop lamp does not illuminate.

OK or NG

OK

>> 1.

Replace ICC unit.

2.

Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system
again.

NG

>> GO TO 11.

11.

CHECK ICC BRAKE HOLD RELAY 

1.

Disconnect ICC brake hold relay.

2.

Check ICC brake hold relay. Refer to 

ACS-64, "ICC Brake Hold Relay"

.

OK or NG

OK

>> 1.

Replace ICC unit.

2.

Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system
again.

NG

>> 1.

Replace ICC brake hold relay.

2.

Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system
again.

12.

 CHECK HARNESS BETWEEN ICC UNIT AND ICC BRAKE HOLD RELAY

1.

Turn ignition switch OFF.

2.

Disconnect ICC unit connector and ICC brake hold relay.

3.

Check continuity between ICC unit harness connector and ICC
brake hold relay harness connector.

4.

Check continuity between ICC unit harness connector and
ground.

OK or NG

OK

>> GO TO 13.

NG

>> 1.

Repair harness between ICC unit and ICC brake hold relay.

2.

Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system
again.

13.

CHECK ICC BRAKE HOLD RELAY GROUND CIRCUIT

ICC unit connector

Terminal

ICC brake hold relay 

connector

Terminal

Continuity

M89

47

E14

1

Yes

ICC unit connector

Terminal

Ground

Continuity

M89

47

No

SKIA6660E

TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS

ACS-49

< SERVICE INFORMATION >

[ICC]

C

D

E

F

G

H

I

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A

B

ACS

N

O

P

Check continuity between ICC brake hold relay harness connector
and ground.

OK or NG

OK

>> GO TO 14.

NG

>> 1.

Repair harness between ICC brake hold relay and
ground.

2.

Erase DTC and perform ICC system running test.
Then perform self-diagnosis of ICC system again.

14.

CHECK ICC BRAKE HOLD RELAY 

Check ICC brake hold relay. Refer to 

ACS-64, "ICC Brake Hold Relay"

.

OK or NG

OK

>> GO TO 15.

NG

>> 1.

Replace ICC brake hold relay.

2.

Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system
again.

15.

CHECK ICC UNIT STANDARD VOLTAGE 

1.

Connect ICC unit connector and stop lamp switch connector.

2.

Perform “Active Test” (“STOP LAMP”: “STP LMP DRIVE ON”)
with CONSULT-III, check voltage between ICC unit harness
connector and ground.

OK or NG

OK

>> GO TO 16.

NG

>> 1.

Replace ICC unit.

2.

Erase DTC and perform ICC system running test. Then perform self-diagnosis of ICC system
again.

16.

CHECK ICC BRAKE HOLD RELAY POWER SUPPLY CIRCUIT 

Check voltage between ICC brake hold relay harness connector and
ground.

OK or NG

OK

>> GO TO 17.

NG

>> 1.

Repair or replace harness or fuse.

2.

Erase DTC and perform ICC system running test.
Then perform self-diagnosis of ICC system again.

17.

CHECK HARNESS BETWEEN ICC UNIT AND ICC BRAKE HOLD RELAY 

1.

Turn ignition switch OFF.

ICC brake hold re-

lay connector

Terminal

Ground

Continuity

E14

2

Yes

SKIA6661E

ICC unit 

connector

Terminal

Condition

Voltage (Ap-

prox.)

(+)

(

)

M89

47

Ground

During “Active Test”

12 V

SKIA3075E

ICC brake hold relay con-

nector

Terminal

Voltage (Ap-

prox.)

(+)

(

)

E14

6

Ground

Battery voltage

SKIA1198E

 

 

 

 

 

 

 

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