Check Back Door Switch

WARNING: This page is about a different car, the 2005 Infiniti FX45 and 2005 Infiniti FX35. However, it is still accessible from the selected car via links, so may be relevant.

CHECK BACK DOOR SWITCH INPUT SIGNAL

With CONSULT-II

Check ("BACK DOOR SW") in "DATA MONITOR" mode with CONSULT-II.

MONITOR ITEM CONDITION

Monitor item	Condition	DATA MONITOR
BACK DOOR SW	OPEN-->CLOSE	ON-->OFF

Fig 1: Displaying ("BACK DOOR SW") In "DATA MONITOR" Mode

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

Without CONSULT-II

Fig 2: Connector Terminal Reference Chart

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

Check voltage between BCM connector and ground.

Fig 3: Checking Voltage Between BCM Connector And Ground

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

OK or NG

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

CHECK HARNESS CONTINUITY
1. Turn ignition switch OFF.
2. Disconnect BCM and back door closure motor connector.
3. Check continuity between BCM connector B14 terminal 58 and back door closure motor connector D109 terminal 7.
  1. 58 (L) - 7 (L) : Continuity should exist.
4. Check continuity between BCM connector B14 terminal 58 and ground.
  1. 58 (L) - Ground : Continuity should not exist.
OK or NG
1. OK : GO TO 3.
2. NG : Repair or replace harness.
Fig 4: Checking Continuity Between BCM Connector B14 Terminal 58 And Back Door Closure Motor Connector D109 Terminal 7
Courtesy of NISSAN MOTOR CO., U.S.A.
CHECK GROUND CIRCUIT
Check continuity between back door closure motor connector D109 terminal 8 and ground.
1. 8 (B) - Ground : Continuity should exist.
OK or NG
1. OK : GO TO 4.
2. NG : Repair or replace harness.
Fig 5: Checking Continuity Between Back Door Closure Motor Connector D109 Terminal 8 And Ground
Courtesy of NISSAN MOTOR CO., U.S.A.
CHECK BACK DOOR SWITCH
Check continuity between back door closure motor D109 terminals 7 and 8.

Fig 6: Connector Terminal Reference Chart
Courtesy of NISSAN MOTOR CO., U.S.A.

OK or NG
1. OK : GO TO 5.
2. NG : Replace back door closure motor.
Fig 7: Checking Continuity Between Back Door Closure Motor D109 Terminals 7 And 8
Courtesy of NISSAN MOTOR CO., U.S.A.
CHECK BCM OUTPUT SIGNAL
1. Connect BCM connector.
2. Check voltage between BCM connector and ground.
  1. 58 (L) - Ground : Approx. 9V
OK or NG
1. OK : Check condition of harness and connector.
2. NG : Replace BCM.
Fig 8: Checking Voltage Between BCM Connector And Ground
Courtesy of NISSAN MOTOR CO., U.S.A.