Back Door Handle 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 HANDLE SWITCH SIGNAL INSPECTION

Turn ignition switch OFF.

While operating the back door handle switch, check voltage between back door control unit connector B55 terminal 26 and ground.

TERMINALS VOLTAGE CHART

Terminals		Condition	Voltage (V) (Approx.)
(+)	(-)	Condition	Voltage (V) (Approx.)
26	Ground	Back door handle switch (ON)	0
26	Ground	Other (OFF)	5

Fig 1: Identifying Voltage Between Back Door Control Unit Connector B55 Terminal 26 And Ground

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

OK or NG

OK : Back door handle switch is OK.
NG : GO TO 2.

BACK DOOR HANDLE SWITCH CIRCUIT INSPECTION
1. Disconnect back door handle switch and back door control unit.
2. Check continuity between back door handle switch connector D706 terminal 3 and back door control unit connector B55 terminal 26.
  3 - 26 : Continuity should exist.
  
  Fig 2: Identifying Continuity Between Connector D706 Terminal 3 And Connector B55 Terminal 26
  Courtesy of NISSAN MOTOR CO., U.S.A.
OK or NG
- OK : GO TO 4.
- NG : Repair or replace harness.
BACK DOOR HANDLE SWITCH GROUND INSPECTION
Check continuity between back door handle switch connector D706 terminal 4 and ground.

4 - Ground : Continuity should exist.

Fig 3: Identifying Continuity Between Back Door Handle Switch Connector D706 Terminal 4 And Ground
Courtesy of NISSAN MOTOR CO., U.S.A.

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