Infiniti QX56 (Z62). Manual — part 1247

SRC-192

< DTC/CIRCUIT DIAGNOSIS >

B1314 SATELLITE SEN LH

B1314 SATELLITE SEN LH

DTC Logic

INFOID:0000000006220155

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

CHECK SELF-DIAG RESULT

With CONSULT-III

1.

Turn ignition switch ON.

2.

Perform “Self Diagnostic Result” mode of “AIR BAG” using CONSULT-III.

Without CONSULT-III

1.

Turn ignition switch ON.

2.

Check the air bag warning lamp status. Refer to

SRC-14, "On Board Diagnosis Function"

.

NOTE:
SRS does not enter the diagnosis mode if no malfunction is detected in the user mode.

Is malfunctioning part detected?

YES

>> Refer to

SRC-192, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000006220156

WARNING:

• Before servicing, turn ignition switch OFF, disconnect battery negative terminal, and wait at least 3

minutes or more. (To discharge backup capacitor.)

• Never use unspecified tester or other measuring device.

1.

REPLACE REAR SATELLITE SENSOR

1.

Replace rear satellite sensor LH. Refer to

SR-24, "Removal and Installation"

.

2.

Perform DTC confirmation procedure. Refer to

SRC-192, "DTC Logic"

.

Is DTC detected?

YES

>> GO TO 2.

NO

>> INSPECTION END

2.

REPLACE AIR BAG DIAGNOSIS SENSOR UNIT

1.

Replace air bag diagnosis sensor unit. Refer to

SR-26, "Removal and Installation"

.

2.

Perform DTC confirmation procedure. Refer to

SRC-192, "DTC Logic"

.

Is DTC detected?

YES

>> GO TO 1.

NO

>> INSPECTION END

DTC

Display contents of

CONSULT-III

DTC detecting condition

Possible cause

B1314

SATELLITE SENS LH
[UNMATCH]

Rear satellite sensor LH is out of the spec-
ified specification

Diagnosis sensor unit or rear satellite sensor LH
is different from the part specified

SRS AIR BAG WARNING LAMP DOES NOT TURN OFF

SRC-193

< SYMPTOM DIAGNOSIS >

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SRC

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SYMPTOM DIAGNOSIS

SRS AIR BAG WARNING LAMP DOES NOT TURN OFF

Diagnosis Procedure

INFOID:0000000006220157

1.

CHECK AIR BAG MODULE AND SEAT BELT PRE-TENSIONER

Check the deployment of air bag module and seat belt pre-tensioner.

Is air bag module deployed?

YES

>> Replace the malfunctioning parts.

NO

>> GO TO 2.

2.

CHECK AIR BAG FUSE

Check 10 A fuse [No.2, located in fuse block (J/B)].

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Replace the fuse.

3.

CHECK HARNESS CONNECTOR

Check the harness connector.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Replace harness connectors.

4.

CHECK WIRING HARNESS

Check the wiring harness externals.
Is the inspection result normal?

YES

>> GO TO 5.

NO

>> Replace wiring harness.

5.

REPLACE AIR BAG DIAGNOSIS SENSOR UNIT

1.

Replace air bag diagnosis sensor unit. Refer to

SR-26, "Removal and Installation"

.

2.

Check air bag warning lamp operation.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> GO TO 6.

6.

REPLACE COMBINATION METER

1.

Replace combination meter. Refer to

MWI-85, "Removal and Installation"

.

2.

Check air bag warning lamp operation.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> GO TO 1.

SRC-194

< SYMPTOM DIAGNOSIS >

SRS AIR BAG WARNING LAMP DOES NOT TURN ON

SRS AIR BAG WARNING LAMP DOES NOT TURN ON

Diagnosis Procedure

INFOID:0000000006220158

1.

CHECK COMBINATION METER POWER SUPPLY AND GROUND CIRCUIT

Check conbination meter unit power supply and ground circuit. Refer to

MWI-64, "COMBINATION METER :

Diagnosis Procedure"

.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair or replace the malfunctioning parts.

2.

CHECK HARNESS CONNECTOR

Check the harness connector.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Replace harness connectors.

3.

CHECK WIRING HARNESS

Check the wiring harness externals.
Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Replace wiring harness.

4.

CHECK AIR BAG DIAGNOSIS SENSOR UNIT

Disconnect air bag diagnosis sensor unit connector and turn ignition switch ON.

Does air bag warning lamp turn ON?

YES

>> Replace air bag diagnosis sensor unit. Refer to

SR-26, "Removal and Installation"

.

NO

>> Replace combination meter. Refer to

MWI-85, "Removal and Installation"

.

ST-1

STEERING

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SECTION

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CONTENTS

STEERING SYSTEM

PRECAUTION . . . . . . . . . . . ...

3

PRECAUTIONS . . . . . . . . . . . . ...

3

Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" . . . . . . . . . . . . . . . . ...

3

Precaution Necessary for Steering Wheel Rota-
tion after Battery Disconnect . . . . . . . . .....

3

Service Notice or Precautions for Steering System

. ..

4

PREPARATION . . . . . . . . . . .

5

PREPARATION . . . . . . . . . . . . ...

5

Special Service Tools . . . . . . . . . . . ....

5

Commercial Service Tools . . . . . . . . . ....

6

SYSTEM DESCRIPTION . . . . . . . ..

7

COMPONENT PARTS . . . . . . . . . .

7

Component Parts Location (Heated Steering
Wheel) . . . . . . . . . . . . . . . . . ...

7

Component Description (Heated Steering Wheel)

. ..

7

Heated Steering Wheel . . . . . . . . . . .....

7

Heated Steering Wheel Switch . . . . . . . .....

8

Heated Steering Wheel Relay . . . . . . . . ...

8

SYSTEM . . . . . . . . . . . . . . . ..

9

System Description (Heated Steering Wheel) . . ...

9

WIRING DIAGRAM . . . . . . . . . ..

10

HEATED STEERING WHEEL . . . . . . .

10

Wiring Diagram . . . . . . . . . . . . . ...

10

BASIC INSPECTION . . . . . . . . ...

13

DIAGNOSIS AND REPAIR WORK FLOW . .

13

WorkFlow (Heated Steering Wheel) . . . . . .

13

STEERING WHEEL . . . . . . . . . . .

14

Inspection . . . . . . . . . . . . . . . .

14

DTC/CIRCUIT DIAGNOSIS . . . . . . .

16

HEATED STEERING WHEEL SYSTEM . . ...

16

Component Function Check . . . . . . . . .

16

Diagnosis Procedure . . . . . . . . . . . ...

16

Component Inspection (Heated Steering Wheel) .

18

Component Inspection (Heated Steering Wheel
Relay) . . . . . . . . . . . . . . . . . ..

19

HEATED STEERING WHEEL SWITCH INDI-
CATOR LAMP . . . . . . . . . . . . ...

20

Component Function Check . . . . . . . . .

20

Diagnosis Procedure . . . . . . . . . . . ...

20

Component Inspection (Heated Steering Wheel
Relay) . . . . . . . . . . . . . . . . . ..

22

SYMPTOM DIAGNOSIS . . . . . . . ..

23

HEATED STEERING WHEEL SYSTEM DOES
NOT ACTIVATE . . . . . . . . . . . .

23

Description . . . . . . . . . . . . . . . ...

23

Diagnosis Procedure . . . . . . . . . . . ...

23

HEATED STEERING WHEEL SWITCH INDI-
CATOR LAMP DOES NOT TURN ON . . . ..

26

Description . . . . . . . . . . . . . . . ...

26

Diagnosis Procedure . . . . . . . . . . . ...

26

NOISE, VIBRATION AND HARSHNESS
(NVH) TROUBLESHOOTING . . . . . . ...

29

NVH Troubleshooting Chart . . . . . . . . .

29

PERIODIC MAINTENANCE . . . . . .

30

POWER STEERING FLUID . . . . . . . ..

30

Inspection . . . . . . . . . . . . . . . .

30

STEERING WHEEL . . . . . . . . . . ..

32

Inspection . . . . . . . . . . . . . . . .

32

REMOVAL AND INSTALLATION . . . ...

33