Infiniti QX56 (JA60). Manual - part 869

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DRIVER INFORMATION & MULTIMEDIA

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SECTION 

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CONTENTS

SONAR SYSTEM

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

3

DIAGNOSIS AND REPAIR WORKFLOW  ..........

3

Work Flow  .................................................................

3

INSPECTION AND ADJUSTMENT .....................

5

Preliminary Check  .....................................................

5

FUNCTION DIAGNOSIS ...............................

6

REAR SONAR SYSTEM  .....................................

6

System Diagram ........................................................

6

System Description  ...................................................

6

Component Parts Location ........................................

7

Component Description .............................................

7

Self-Diagnosis Function  ............................................

7

FRONT AND REAR SONAR SYSTEM ..............

10

System Diagram ......................................................

10

System Description  .................................................

10

Component Parts Location ......................................

11

Component Description ...........................................

12

CONSULT-III Function (SONAR) ............................

12

COMPONENT DIAGNOSIS  .........................

13

POWER SUPPLY AND GROUND CIRCUIT ......

13

Diagnosis Procedure (With Rear Sonar System) ....

13

Diagnosis Procedure (With Front and Rear Sonar 
System) ...................................................................

13

SONAR SENSOR CIRCUIT INSPECTION  ........

15

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

15

Diagnosis Procedure (With Rear Sonar System) ....

15

Diagnosis Procedure (With Front and Rear Sonar 
System) ...................................................................

15

SONAR BUZZER CIRCUIT INSPECTION .........

17

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

17

Diagnosis Procedure (With Rear Sonar System) ....

17

Diagnosis Procedure (With Front and Rear Sonar 
System) ...................................................................

17

Component Inspection .............................................

18

SONAR SYSTEM OFF SWITCH CIRCUIT IN-
SPECTION ........................................................

19

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

19

Diagnosis Procedure (With Rear Sonar System) ....

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Diagnosis Procedure (With Front and Rear Sonar 
System) ...................................................................

19

Component Inspection .............................................

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ECU DIAGNOSIS .........................................

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SONAR CONTROL UNIT FOR REAR SONAR 
SYSTEM ............................................................

21

Reference Value ......................................................

21

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

23

DTC Index  ...............................................................

30

SONAR CONTROL UNIT FOR FRONT AND 
REAR SONAR SYSTEM ...................................

31

Reference Value ......................................................

31

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

33

DTC Index  ...............................................................

44

SYMPTOM DIAGNOSIS  ..............................

45

SONAR SYSTEM SYMPTOMS  ........................

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Symptom Table  .......................................................

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

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

46

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

46

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

46

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

48

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

48

Commercial Service Tool  ........................................

48

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REMOVAL AND INSTALLATION ...............

49

SONAR SENSOR  ..............................................

49

Removal and Installation  ........................................

49

SONAR CONTROL UNIT  ..................................

50

Removal and Installation .........................................

50

BUZZER .............................................................

51

Removal and Installation .........................................

51

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DIAGNOSIS AND REPAIR WORKFLOW

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< BASIC INSPECTION >

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BASIC INSPECTION

DIAGNOSIS AND REPAIR WORKFLOW

Work Flow

INFOID:0000000005146182

WORK FLOW

DETAILED FLOW

1.

CUSTOMER INFORMATION

Interview the customer to obtain detailed information about the symptom.

>> GO TO 2

2.

PRELIMINARY CHECK

Perform preliminary check.  Refer to 

SN-5, "Preliminary Check"

.

>> GO TO 3

3.

SELF-DIAGNOSIS

AWNIA1592GB

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< BASIC INSPECTION >

DIAGNOSIS AND REPAIR WORKFLOW

Perform self-diagnosis.  Refer to 

SN-7, "Self-Diagnosis Function"

 (with rear sonar system) or 

SN-12, "CON-

SULT-III Function (SONAR)"

 (with front and rear sonar system).

>> GO TO 4

4.

SYMPTOM

Check for symptoms.  Refer to 

SN-45, "Symptom Table"

.

>> GO TO 5

5.

MALFUNCTIONING PARTS

Repair or replace the applicable parts.

>> GO TO 6

6.

SYSTEM OPERATION

Check system operation.  Refer to 

SN-5, "Preliminary Check"

.

>> GO TO 7

7.

SELF-DIAGNOSIS

Perform self-diagnosis.  Refer to 

SN-7, "Self-Diagnosis Function"

 (with rear sonar system) or 

SN-12, "CON-

SULT-III Function (SONAR)"

 (with front and rear sonar system).

Are any fault codes displayed?

YES

>> GO TO 5

NO

>> Inspection End.