The Rear View Image Is Distorted

WARNING: This page is about a different car, the 2002 Infiniti Q45. However, it is still accessible from the selected car via links, so may be relevant.

CHECK SYNCHRO SIGNAL OPEN OR SHORT CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect rear view camera control unit connector and display.
3. Check the following
  - Continuity between rear view camera control unit harness connector B236 terminal 22 (PU) and display harness connector M82 terminal 10 (PU).
  - Continuity between rear view camera control unit harness connector B236 terminal 22 (PU) and ground.
  Fig 1: Checking Synchro Signal Open Or Short Circuit (1 Of 2)
  Courtesy of NISSAN MOTOR CO., U.S.A.
  
  Fig 2: Checking Synchro Signal Open Or Short Circuit (2 Of 2)
  Courtesy of NISSAN MOTOR CO., U.S.A.
OK or NG
1. OK >> GO TO 2.
2. NG >> Repair or replace harness.
CHECK VIDEO SIGNAL GROUND CIRCUIT
Check continuity between rear view camera control unit B236 harness connector terminal 23 and display harness connector M82 terminal 11.

OK or NG

Fig 3: Checking Video Signal Ground Circuit
Courtesy of NISSAN MOTOR CO., U.S.A.
1. OK >> GO TO 3.
2. NG >> Repair or replace harness.
CHECK REAR VIEW CONTROL UNIT SYNCHRO SIGNAL
1. Connect rear view camera control unit connector.
2. Turn ignition switch ON.
3. Check signal between rear view camera control unit harness connector B236 terminal 22 (PU) and ground.
  22-Ground : Refer to TERMINALS AND REFERENCE VALUE FOR REAR VIEW CAMERA CONTROL UNIT .
  
  Fig 4: Checking Rear View Control Unit Synchro Signal
  Courtesy of NISSAN MOTOR CO., U.S.A.
OK or NG
1. OK >> Replace rear view camera control unit.
2. NG >> Replace display