Power Supply and Ground Circuit Inspection

WARNING: This page is about a different car, the 2008 Infiniti FX45 and 2008 Infiniti FX35. However, it is still accessible from the selected car via links, so may be relevant.

CHECK FUSE

Make sure the fuses for rear view camera control unit is blown.

FUSES SPECIFICATIONS

Power source	Fuse No.
Battery power supply	19
ACC power supply	6

OK or NG

OK: GO TO 2.

NG: Be sure to eliminate cause of malfunction before installing new fuse. Refer to "POWER SUPPLY ROUTING CIRCUIT ".

CHECK POWER SUPPLY CIRCUIT

Check voltage between rear view camera control unit harness connector M48 terminals 1, 2 and ground.

Fig 1: Identifying Voltage Between Rear View Camera Control Unit Harness Connector M48 Terminals 1, 2 And Ground

Courtesy of NISSAN MOTOR CO., U.S.A.

VOLTAGE SPECIFICATIONS

Terminals			OFF	ACC
(+)		(-)
Connector	Terminal	(-)
M48	1	Ground	Battery voltage	Battery voltage
M48	2	Ground	0 V	Battery voltage

OK or NG

OK: GO TO 3.

NG: Check harness between rear view camera control unit and fuse.

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 M48 terminal 3 and ground.
  3 - Ground : Continuity should exist.
OK or NG

OK: INSPECTION END

NG: Repair harness or connector.