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

MONITOR ITEM CONDITION

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

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

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

Without CONSULT-II

Check voltage between BCM connector and ground.

Fig 2: Terminal Reference Chart

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

Fig 3: Checking Voltage Between BCM Connector And Ground

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

OK or NG

OK : Door switch circuit is OK.
NG : GO TO 2.

CHECK BACK DOOR SWITCH CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect back door switch connector.
3. Check voltage between back door switch connector D109 terminal 7 and ground. (Check harness for open.)
  1. 7 (L) - Ground : Approx. 9V
  Fig 4: Checking Voltage Between Back Door Switch Connector D109 Terminal 7 And Ground
  Courtesy of NISSAN MOTOR CO., U.S.A.
4. Check continuity between back door switch connector D109 terminal 7 and ground. (Check harness for short.)
  1. 7 (L) - Ground : Continuity should not exist.
Fig 5: Checking Continuity Between Back Door Switch Connector D109 Terminal 7 And Ground
Courtesy of NISSAN MOTOR CO., U.S.A.

OK or NG
1. OK : GO TO 3.
2. NG : Repair or replace harness.
CHECK BACK DOOR SWITCH
Check continuity between back door switch terminals 7 and 8.

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

Fig 7: Checking Continuity Between Back Door Switch Terminals 7 And 8
Courtesy of NISSAN MOTOR CO., U.S.A.

OK or NG
1. OK : GO TO 4.
2. NG : GO TO Replace back door closure motor (door switch).
CHECK BACK DOOR SWITCH GROUND HARNESS
Check continuity between back door switch connector D109 terminal 8 and ground.
1. 8 (B) - Ground : Continuity should exist.
Fig 8: Checking Continuity Between Back Door Switch Connector D109 Terminal 8 And Ground
Courtesy of NISSAN MOTOR CO., U.S.A.

OK or NG
1. OK : Check harness connection.
2. NG : Repair or replace harness.