Rear View Is Not Displayed With The A/T Selector Lever In R Position

WARNING: This page is about a different car, the 2006 Nissan Quest. However, it is still accessible from the selected car via links, so may be relevant.

BACK-UP LAMP INSPECTION
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 , "BACK-UP LAMP ".
CHECK REVERSE POSITION INPUT SIGNAL
With CONSULT-II

Select "DATA MONITOR" of "REARVIEW CAMERA". Operate ignition switch with "R POSI SIG" of "DATA MONITOR" and check operate status.

Fig 1: CONSULT-II Screen Display - DATA MONITOR
Courtesy of NISSAN MOTOR CO., U.S.A.

Without CONSULT-II
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 P125 terminal 4 and ground.
  Battery voltage should exist.
  
  Fig 2: Checking Voltage Between Rear View Camera Control Unit P125 Terminal 4 And Ground
  Courtesy of NISSAN MOTOR CO., U.S.A.
OK or NG

OK: GO TO 3.

NG: Check harness for open or short between rear view camera control unit and park/neutral position (PNP) switch.
CHECK DISPLAY CONTROL UNIT OUTPUT SIGNAL
Check voltage between rear view camera control unit harness connector P125 terminal 5 and ground.

Voltage: Approx. 5V

Fig 3: Checking Voltage Between Rear View Camera Control Unit P125 Terminal 5 And Ground
Courtesy of NISSAN MOTOR CO., U.S.A.

OK or NG

OK: GO TO 5.

NG: GO TO 4.
CHECK DISPLAY CONTROL UNIT CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect display control unit connector.
3. Check continuity between rear view camera control unit harness connector P125 terminal 5 and display control unit harness connector M94 terminal 8.
  Continuity should exist.
4. Check continuity between rear view camera control unit harness connector P125 terminal 5 and ground.
  Continuity should not exist.
  
  Fig 4: Checking Continuity Between Rear View Camera Control Unit P125 Terminal 5 And Ground
  Courtesy of NISSAN MOTOR CO., U.S.A.
OK or NG

OK: Replace display control unit. Refer to , "REMOVAL AND INSTALLATION ".

NG: Repair harness or connector.
CHECK AV CONTROL SIGNAL
1. Turn ignition switch OFF.
2. Connect 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 P125 terminal 5 and ground.
  Voltage: Approx. 0V
Fig 5: Checking Voltage Between Rear View Camera Control Unit P125 Terminal 5 And Ground
Courtesy of NISSAN MOTOR CO., U.S.A.

OK or NG

OK: GO TO 6.

NG: Replace rear view camera control unit. Refer to , "REAR VIEW CAMERA CONTROL UNIT ".
CHECK REAR VIEW CAMERA OPEN CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect rear view camera connector.
3. Check continuity between rear view camera control unit harness connector P125 terminal 8 and rear view camera harness connector D518 terminal 1.
  Continuity should exist.
4. Check continuity between rear view camera control unit harness connector P125 terminal 9 and rear view camera harness connector D518 terminal 4.
  Continuity should exist.
5. Check continuity between rear view camera control unit harness connector P125 terminal 10 and rear view camera harness connector D518 terminal 3.
  Continuity should exist.
Fig 6: Checking Rear View Camera Open Circuit
Courtesy of NISSAN MOTOR CO., U.S.A.

OK or NG

OK: GO TO 7.

NG: Repair harness or connector.
CHECK REAR VIEW CAMERA SHORT CIRCUIT
1. Check continuity between rear view camera control unit harness connector P125 terminal 8 and ground.
  Continuity should not exist.
2. Check continuity between rear view camera control unit harness connector P125 terminal 9 and ground.
  Continuity should not exist.
3. Check continuity between rear view camera control unit harness connector P125 terminal 10 and ground.
  Continuity should not exist.
  
  Fig 7: Checking Rear View Camera Short Circuit
  Courtesy of NISSAN MOTOR CO., U.S.A.
OK or NG

OK: GO TO 8.

NG: Repair harness on connector.
CHECK POWER SUPPLY AND GROUND CIRCUIT
Check power supply and ground circuit. Refer to , "POWER SUPPLY AND GROUND CIRCUIT INSPECTION ".

OK or NG

OK: GO TO 9.

NG: Repair power supply or ground circuit.
CHECK REAR VIEW CAMERA CONTROL UNIT OUTPUT SIGNAL
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 P125 terminal 8 and ground.
  Voltage: Approx. 6V
OK or NG

OK: GO TO 10.

NG: Replace the rear view camera control unit. Refer to , "REAR VIEW CAMERA CONTROL UNIT ".
CHECK REAR VIEW CAMERA SIGNAL
1. Connect rear view camera connector.
2. Turn ignition switch ON.
3. Shift A/T selector lever to R position.
4. Check voltage signal between rear view camera control unit harness connector P125 terminal 10 and ground.
  10 - Ground:
  
  Fig 9: Voltage Signal Wave Foam
  Courtesy of NISSAN MOTOR CO., U.S.A.
  
  Fig 10: Checking Voltage Signal Between Rear View Camera Control Unit P125 Terminal 10 And Ground
  Courtesy of NISSAN MOTOR CO., U.S.A.
OK or NG

OK: GO TO 11.

NG: Replace the rear view camera. Refer to , "REAR VIEW CAMERA ".
CHECK COMPOSITE SIGNAL OPEN OR SHORT CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect rear view camera control unit connector and display unit connector.
3. Check continuity between rear view camera control unit harness connector P125 (A) terminal 12 and display unit harness connector M93 (B) terminal 15.
  Continuity should exist.
4. Check continuity between rear view camera control unit harness connector P125 (A) terminal 12 and ground.
  Continuity should not exist.
  
  Fig 11: Checking Composite Signal Open Or Short Circuit
  Courtesy of NISSAN MOTOR CO., U.S.A.
OK or NG

OK: GO TO 12.

NG: Repair harness or connector.
CHECK COMPOSITE SIGNAL GROUND CIRCUIT
1. Check continuity between rear view camera control unit harness connector P125 (A) terminal 11 and display unit harness connector M93 (B) terminal 4.
  Continuity should exist.
2. Check continuity between rear view camera control unit harness connector P125 (A) terminal 11 and ground.
  Continuity should not exist.
  
  Fig 12: Checking Composite Signal Ground Circuit
  Courtesy of NISSAN MOTOR CO., U.S.A.
OK or NG

OK: GO TO 13.

NG: Repair harness or connector.
CHECK REAR VIEW CAMERA CONTROL UNIT COMPOSITE SIGNAL
1. Connect rear view camera control unit connector and display unit connector.
2. Turn ignition switch ON.
3. Check voltage signal between rear view camera control unit harness connector P125 terminal 12 and ground.
  12 - Ground:
  
  Fig 13: Voltage Signal Wave Form
  Courtesy of NISSAN MOTOR CO., U.S.A.
  
  Fig 14: Checking Voltage Signal Between Rear View Camera Control Unit P125 Terminal 12 And Ground
  Courtesy of NISSAN MOTOR CO., U.S.A.
OK or NG

OK: Replace the display unit. Refer to , "REMOVAL AND INSTALLATION ".

NG: Replace the rear view camera control unit. Refer to , "REAR VIEW CAMERA CONTROL UNIT ".