Back Door Close (Close) Switch System Inspection

WARNING: This page is about a different car, the 2006 Infiniti QX56. However, it is still accessible from the selected car via links, so may be relevant.

BACK DOOR CLOSE SWITCH FUNCTION INSPECTION
Check back door close (close) switch using switch operation.

OK or NG
- OK : Back door close switch is OK.
- NG : GO TO 2.

BACK DOOR CLOSE SWITCH SIGNAL INSPECTION

Turn ignition switch OFF.

While operating the back door close switch, check voltage between back door control unit connector B55 terminal 8 and ground.

TERMINALS VOLTAGE CHART

Terminals		Condition		Voltage (V) (Approx.)
(+)	(-)	Condition		Voltage (V) (Approx.)
8	Ground	Back door close switch	ON	0
8	Ground	Back door close switch	OFF	5

Fig 1: Identifying Voltage Between Back Door Control Unit Connector B55 Terminal 8 And Ground

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

OK or NG

OK : Back door close switch is OK.
NG : GO TO 3.

BACK DOOR CLOSE SWITCH CIRCUIT INSPECTION
1. Disconnect back door close switch and back door control unit connector.
2. Check continuity between back door close switch connector B63 terminal 1 and back door control unit connector B55 terminal 8.
  1 - 8 : Continuity should exist.
  
  Fig 2: Identifying Connector B63 Terminal 1 And Back Door Control Unit Connector B55 Terminal 8
  Courtesy of NISSAN MOTOR CO., U.S.A.
OK or NG
- OK : GO TO 4.
- NG : Repair or replace harness.
BACK DOOR CLOSE SWITCH GROUND INSPECTION
Check continuity between back door close switch connector B63 terminal 3 and ground.

3 - Ground : Continuity should exist.

Fig 3: Identifying Continuity Between Back Door Close Switch Connector B63 Terminal 3 And Ground
Courtesy of NISSAN MOTOR CO., U.S.A.

OK or NG
- OK : Replace the back door close switch.
- NG : Repair or replace harness.