Trunk Motor Check

MOTOR OPERATION CHECK

Check voltage between auto trunk control unit connector and ground.

CONNECTOR VOLTAGE CHART

Connector	Terminals (Wire color)		Condition	Voltage (V) (Approx.)
Connector	(+)	(-)	Condition	Voltage (V) (Approx.)
B111	20 (G/W)	Ground	Trunk is closed	0
	20 (G/W)		Trunk is opened	Battery voltage
	21 (L/W)		Trunk is closed	Battery voltage
	21 (L/W)		Trunk is opened	0

Fig 1: Checking Voltage Between Auto Trunk Control Unit Connector And Ground

G04129546

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

OK or NG

OK : GO TO 2.
NG : Replace auto trunk control unit.

CHECK HARNESS CONTINUITY
1. Turn ignition switch OFF.
2. Disconnect auto trunk control unit and auto trunk motor connectors.
3. Check continuity between auto trunk control unit connector B111 terminals 20, 21 and auto trunk motor connector B109 terminals 6, 7.
  20 (G/W) - 7 (G/W) : Continuity should exist.
  
  21 (L/W) - 6 (L/W) : Continuity should exist.
4. Check continuity between auto trunk motor connector B109 terminals 6, 7 and ground.
  6 (L/W) - Ground : Continuity should not exist.
  
  7 (G/W) - Ground : Continuity should not exist.
OK or NG
- OK : Replace auto trunk motor.
- NG : Repair or replace harness.
  
  Fig 2: Checking Continuity Between Auto Trunk Motor Connector B109 Terminals 6, 7 And Ground
  Courtesy of NISSAN MOTOR CO., U.S.A.