Infiniti Q45. Manual - part 330

REAR VIEW MONITOR

DI-187

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SYMPTOM CHART

Preliminary Inspection 

NKS001E8

1. 

CHECK BACK-UP LAMP

1.

Turn ignition switch ON.

2.

Shift A/T selector lever to “R” position.

Does back-up lamp illuminate?

YES

>> GO TO 2.

NO

>> Check back-up lamp system. Refer to 

LT-104, "BACK-UP LAMP"

  in LT section.

2. 

CHECK AV COMMUNICATION SYSTEM 

Perform self-diagnosis in the self-diagnosis mode. Refer to 

DI-126, "SELF-DIAGNOSIS MODE"

  (without

NAVI) or 

AV-102, "Self-Diagnosis Mode"

  (with NAVI).

OK or NG

OK

>> INSPECTION END

NG

>> Check applicable parts.

Power Supply and Ground Circuit Inspection

NKS001E9

1. 

CHECK FUSE

Check for blown rear view camera control unit fuses.

OK or NG

OK

>> GO TO 2.

NG

>> If fuse is blown, be sure to eliminate cause of malfunction before installing new fuse. Refer to 

PG-

2, "POWER SUPPLY ROUTING"

 .

Symptom

Diagnoses/Service procedure 

Rear view image is not displayed with the A/T 
selector lever in “R” position.
(Rear view camera guide line is displayed only.) 

Perform the following inspections.

1.

DI-187, "Power Supply and Ground Circuit Inspection"

2.

DI-188, "Rear View Camera Control Unit Reverse Signal Inspection"

3.

DI-189, "Rear View Camera Circuit Inspection"

4.

DI-190, "Composite Image Signal Circuit Inspection"

Replace display, found normal function in the above inspections. 

Display does not switch rear view image with 
the A/T selector lever in “R” position.

Without NAVI
Perform the following inspections.

1.

DI-191, "AV Control Unit Reverse Signal Inspection [Without NAVI]"

2.

DI-192, "Rear View Camera Recognition Signal Inspection [Without NAVI]"

Replace AV control unit, found normal function in the above inspections. 

With NAVI
Perform the following inspections.

1.

DI-193, "AV and NAVI Control Unit Reverse Signal Inspection [With NAVI]"

2.

DI-193, "Rear View Camera Recognition Signal Inspection [With NAVI]"

Replace AV and NAVI control unit, found normal function in the above inspections. 

Rear view image is distorted.

DI-194, "Rear View Image is Distorted"

.

Unit

Power source

Fuse No.

 Rear view camera control unit

Battery

52

Ignition switch (ACC)

21

DI-188

REAR VIEW MONITOR

2. 

CHECK POWER SUPPLY CIRCUIT

Check voltage between rear view camera control unit harness con-
nector B236 terminals 1, 2 and ground.

OK or NG

OK

>> GO TO 3.

NG

>> Check harness between rear view camera control unit and fuse.

3. 

CHECK REAR VIEW CAMERA CONTROL UNIT GROUND CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect rear view camera control unit connector. 

3.

Check continuity between rear view camera control unit harness
connector B236 terminal 3 and ground.

OK or NG

OK

>> Power supply and ground circuit are OK. Return to 

DI-

187, "SYMPTOM CHART"

 .

NG

>> Repair ground harness.

Rear View Camera Control Unit Reverse Signal Inspection

NKS001EA

1. 

CHECK REVERSE POSITION INPUT SIGNAL

1.

Turn ignition switch OFF.

2.

Disconnect rear view camera control unit connector.

3.

Turn ignition switch ON.

4.

Shift A/T selector lever to “R” position.

5.

Check voltage between rear view camera control unit harness
connector B236 terminal 4 and ground.

OK or NG

OK

>> Reverse signal is OK. Return to 

DI-187, "SYMPTOM

CHART"

 .

NG

>> Check harness between rear view camera control unit and back-up lamp relay.

Terminals

OFF

ACC

(+)

(–)

Connector

Terminal

B236

1

Ground

Battery voltage

Battery voltage

2

0  V

Battery  voltage

SKIB0703E

3 – Ground

: Continuity should exist.

SKIB0704E

4 – Ground

: Approx. 12 V

SKIB0712E

REAR VIEW MONITOR

DI-189

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Rear View Camera Circuit Inspection

NKS001EB

1. 

CHECK REAR VIEW CAMERA OPEN CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect rear view camera connector and rear view camera
control unit connector.

3.

Check continuity between rear view camera harness connector
B314 terminal 1 and rear view camera control unit harness con-
nector B236 terminal 8.

4.

Check continuity between rear view camera harness connector
B314 terminal 3 and rear view camera control unit harness con-
nector B236 terminal 10.

5.

Check continuity between rear view camera harness connector B314 terminal 4 and rear view camera
control unit harness connector B236 terminal 9.

OK or NG

OK

>> GO TO 2.

NG

>> Repair harness or connector.

2. 

CHECK REAR VIEW CAMERA SHORT CIRCUIT

1.

Check continuity between rear view camera control unit harness
connector B236 terminal 8 and ground.

2.

Check continuity between rear view camera control unit harness
connector B236 terminal 10 and ground.

OK or NG

OK

>> GO TO 3.

NG

>> Repair harness or connector.

3. 

CHECK REAR VIEW CAMERA GROUND CIRCUIT

Check continuity between rear view camera harness connector
B314 terminal 2 and ground.

OK or NG

OK

>> GO TO 4.

NG

>> Repair harness or connector.

1 – 8

: Continuity should exist.

3 – 10

: Continuity should exist.

4 – 9 

: Continuity should exist.

SKIB0705E

8 – Ground

: Continuity should not exist.

10 – Ground

: Continuity should not exist.

SKIB0706E

2 – Ground

: Continuity should exist.

SKIB0707E

DI-190

REAR VIEW MONITOR

4. 

CHECK REAR VIEW CAMERA POWER OUTPUT

1.

Connect rear view camera control unit connector.

2.

Turn ignition switch ON.

3.

Shift A/T selector lever to “R” position.

4.

Check voltage between rear view camera control unit harness
connector B236 terminal 8 and ground.

OK or NG

OK

>> GO TO 5.

NG

>> Replace rear view camera control unit.

5. 

CHECK REAR VIEW CAMERA IMAGE INPUT SIGNAL

1.

Turn ignition switch OFF.

2.

Connect rear view camera connector.

3.

Turn ignition switch ON.

4.

Shift A/T selector lever to “R” position.

5.

Check voltage signal between rear view camera control unit har-
ness connector B236 terminals 10 and 9.

OK or NG

OK

>> Rear view camera is OK. Return to 

DI-187, "SYMPTOM CHART"

 .

NG

>> Replace rear view camera.

Composite Image Signal Circuit Inspection

NKS001EC

1. 

CHECK COMPOSITE IMAGE SIGNAL CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect rear view camera control unit connector and display
connector.

3.

Check continuity between rear view camera control unit harness
connector B236 terminal 12 and display harness connector M82
terminal 9.

4.

Check continuity between rear view camera control unit harness
connector B236 terminal 12 and ground.

OK or NG

OK

>> GO TO 2.

NG

>> Repair harness or connector.

8 – Ground

: Approx. 6 V

SKIB0709E

10 – 9:

SKIB0708E

SKIA4894E

12 – 9

: Continuity should exist.

12 – Ground

: Continuity should not exist.

SKIB0713E