Infiniti QX56 (JA60). Manual - part 175

CCS-36

< COMPONENT DIAGNOSIS >

DTC 90 STOP LAMP RLY FIX

1. Connect connectors of ICC unit and stop lamp switch.

2. While performing active test (STOP LAMP: STP LMP DRIVE

ON) with CONSULT-III, check voltage between ICC unit harness

connector B17 terminal 47 and ground.

Does battery voltage exist?

YES

>> GO TO 14

NO

>> Replace ICC unit. Refer to 

CCS-71, "ICC Unit"

. Erase

DTC and perform ICC system running test. Refer to

CCS-8, "ACTION TEST : ICC System Running Test"

.

14.

CHECK ICC BRAKE HOLD RELAY POWER SUPPLY CIRCUIT 

Check voltage between ICC brake hold relay harness connector

E134 terminal 7 and ground.

Does battery voltage exist?

YES

>> GO TO 15

NO

>> • Check fuse or ICC brake hold relay power supply har-

ness.

• Erase DTC and perform ICC system running test.

Refer to 

CCS-8, "ACTION TEST : ICC System Run-

ning Test"

.

15.

CHECK HARNESS BETWEEN ICC BRAKE HOLD RELAY AND ICC UNIT

1. Turn ignition switch OFF.

2. Disconnect ICC unit harness connectors.

3. Check continuity between ICC brake hold relay harness connec-

tor (B) E134 terminal 6 and ICC unit harness connector (A) B17

terminal 38.

4. Check continuity between ICC unit harness connector (A) B17

terminal 38 and ground.

Are continuity test results as specified?

YES

>> GO TO 16

NO

>> • Repair harness between ICC brake hold relay and ICC unit or between ICC brake hold relay

and stop lamp switch.

• Erase DTC and perform ICC system running test. Refer to 

CCS-8, "ACTION TEST : ICC Sys-

tem Running Test"

.

16.

CHECK ICC BRAKE HOLD RELAY 

1. Connect ICC unit and ICC brake hold relay harness connectors.

2. Disconnect stop lamp switch connector.

3. Perform active test (STOP LAMP) with CONSULT-III, and make sure that stop lamps are illuminated.
Do the stop lamps illuminate?

YES

>> GO TO 17

NO

>> Replace ICC brake hold relay. Erase DTC and perform ICC system running test. Refer to 

CCS-8,

"ACTION TEST : ICC System Running Test"

.

17.

CHECK ICC UNIT STANDARD VOLTAGE 

47 - Ground

Battery voltage should exist 
(during active test) 

SKIA3075E

7 - Ground

Battery voltage should exist

ALOIA0010ZZ

6 - 38

Continuity should exist.

38 - Ground

Continuity should not exist.

ALOIA0011ZZ

CCS

DTC 90 STOP LAMP RLY FIX

CCS-37

< COMPONENT DIAGNOSIS >

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1. Connect stop lamp switch connector.

2. While performing active test (STOP LAMP: STP LMP DRIVE

ON) with CONSULT-III, check voltage between ICC unit harness

connector B17 terminal 29 and ground.

Are voltage readings as specified?

YES

>> Replace ICC unit. Refer to 

CCS-71, "ICC Unit"

. Erase

DTC and perform ICC system running test. Refer to

CCS-8, "ACTION TEST : ICC System Running Test"

.

NO

>> Replace stop lamp switch. Erase DTC and perform ICC

system running test. Refer to 

CCS-8, "ACTION TEST : ICC System Running Test"

.

29 - Ground

Approx. 0V (during active test) 

SKIA1200E

CCS-38

< COMPONENT DIAGNOSIS >

DTC 92 ECM CIRCUIT

DTC 92 ECM CIRCUIT

DTC 92 ECM CIRCUIT

INFOID:0000000005145995

1.

DIAGNOSIS CHECK 1

Perform self-diagnosis with CONSULT-III.
Is "CAN COMM CIRCUIT" indicated?

YES

>> Repair or replace as necessary. Erase DTC and perform ICC system running test. Refer to 

CCS-

8, "ACTION TEST : ICC System Running Test"

 .

NO

>> GO TO 2

2.

DIAGNOSIS CHECK 2

Perform ECM self-diagnosis.
Is malfunction indicated?

YES

>> Repair or replace as necessary. Erase DTC and perform ICC system running test. Refer to 

CCS-

8, "ACTION TEST : ICC System Running Test"

.

NO

>> Replace ICC unit. Refer to 

CCS-71, "ICC Unit"

. Erase DTC and perform ICC system running test.

Refer to 

CCS-8, "ACTION TEST : ICC System Running Test"

.

CCS

DTC 96 NP RANGE

CCS-39

< COMPONENT DIAGNOSIS >

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DTC 96 NP RANGE

DTC 96 NP RANGE

INFOID:0000000005145996

Regarding Wiring Diagram information, refer to 

CCS-48, "Wiring Diagram"

.

1.

CHECK ICC UNIT CONNECTORS

1. Turn ignition switch OFF.

2. Disconnect ICC unit harness connectors and connect them securely again. Erase DTC, then perform self-

diagnosis of ICC system again.

Does the DTC reset?

YES

>> GO TO 2

NO

>> • Poor connector connection.

• Check connector. Check connector housing for disconnected, loose, bent, and collapsed termi-

nals. If any malfunction is detected, repair as necessary. Erase DTC and perform ICC system

running test. Refer to 

CCS-8, "ACTION TEST : ICC System Running Test"

.

2.

CHECK NP RANGE SWITCH SIGNAL 

With data monitor, check that “NP RANGE SW” operates normally.
Does the "NP RANGE SW" monitor item operate normally?

YES

>> Perform TCM diagnosis. Refer to 

TM-30, "Introduction"

.

NO

>> GO TO 3

3.

CHECK HARNESS BETWEEN ICC UNIT AND TCM

1. Turn ignition switch OFF.

2. Disconnect ICC unit harness connectors and A/T assembly har-

ness connector.

3. Check continuity between ICC unit harness connector B13 ter-

minal 7 and A/T assembly harness connector F9 terminal 9.

Does continuity exist?

YES

>> Replace ICC unit. Refer to 

CCS-71, "ICC Unit"

. Erase

DTC and perform ICC system running test. Refer to

CCS-8, "ACTION TEST : ICC System Running Test"

.

NO

>> • Repair harness between ICC unit and TCM.

• Erase DTC and perform ICC system running test. Refer to 

CCS-8, "ACTION TEST : ICC Sys-

tem Running Test"

.

7 - 9

Continuity should exist.

SKIA5982E