Diagnosis Procedure

Regarding Wiring Diagram information, refer to "WIRING DIAGRAM - WITHOUT INTELLIGENT KEY SYSTEM ".

1. CHECK BACK DOOR OPENER SWITCH

   With CONSULT 

   Check back door opener switch ("TRNK OPNR SW") in "DATA MONITOR" mode.

   Monitor item	Condition
   TRNK OPNR SW	Back door opener switch is pressed: ON
   	Back door opener switch is released: OFF

   Without CONSULT 

   1. Turn ignition switch OFF.
   2. Check voltage between BCM connector M18 terminal 30 and ground.

      Connector	Terminals		Condition	Voltage (V) (Approx.)
      	(+)	(-)
      M18	30	Ground	Back door opener switch is pressed	0
      			Back door opener switch is released	5

      Fig 1: Checking Voltage Between BCM Connector M18 Terminal 30 And Ground

      Courtesy of NISSAN NORTH AMERICA, INC.

      Is the inspection result normal? 

      YES: Back door opener switch is OK.

      NO: GO TO 2

2. CHECK BACK DOOR OPENER SWITCH OPERATION
   1. Turn ignition switch OFF.
   2. Disconnect back door opener switch connector.
   3. Check continuity between back door opener switch terminals 1 and 2.

      Component	Terminals		Condition	Continuity
      Back door opener switch	1	2	Back door opener switch is pressed	Yes
      			Back door opener switch is released	No

      Is the inspection result normal? 

      YES: GO TO 3

      NO: Replace back door opener switch.

      Fig 2: Checking Continuity Between Back Door Opener Switch Terminals 1 And 2

      Courtesy of NISSAN NORTH AMERICA, INC.
3. CHECK BACK DOOR OPENER SWITCH GROUND CIRCUIT
   NOTE: The passenger door must be unlocked during this step.

   Check continuity between back door opener switch harness connector D510 terminal 2 and ground.

   2 - Ground: Continuity should exist  .

   Is the inspection result normal? 

   YES: GO TO 4

   NO: GO TO  5

   Fig 3: Checking Continuity Between Back Door Opener Switch Harness Connector D510 Terminal 2 And Ground

   Courtesy of NISSAN NORTH AMERICA, INC.
4. CHECK BACK DOOR OPENER SWITCH CIRCUIT
   1. Disconnect BCM.
   2. Check continuity between BCM harness connector (A) M18 terminal 30 and back door opener switch harness connector (B) D510 terminal 1.

      30 - 1: Continuity should exist  .

   3. Check continuity between BCM harness connector (A) M18 terminal 30 and ground.

      30 - Ground: Continuity should not exist  .

      Is the inspection result normal? 

      YES: Replace BCM. Refer to "REMOVAL AND INSTALLATION ".

      NO: Repair or replace harness between BCM and back door opener switch.

      Fig 4: Checking Continuity Between BCM Harness Connector M18 And Back Door Opener Switch Harness Connector D510 Terminals

      Courtesy of NISSAN NORTH AMERICA, INC.
5. CHECK BACK DOOR OPENER SWITCH GROUND CIRCUIT
   1. Disconnect front door lock assembly RH (door unlock sensor).
   2. Check continuity between back door opener switch harness connector (A) D510 terminal 2 and front door lock assembly RH (door unlock sensor) connector (B) D103 terminal 3.

      2 - 3: Continuity should exist  .

   3. Check continuity between back door opener switch harness connector (A) D510 terminal 2 and ground.

      2 - Ground: Continuity should not exist  .

      Is the inspection result normal? 

      YES: GO TO 6

      NO: Repair or replace harness.

      Fig 5: Checking Continuity Between Back Door Opener Switch Harness Connector D510 And Front Door Lock Assembly RH (Door Unlock Sensor) Connector D103 Terminals

      Courtesy of NISSAN NORTH AMERICA, INC.
6. CHECK DOOR UNLOCK SENSOR CIRCUIT
   1. Check continuity between front door lock assembly RH (door unlock sensor) connector D103 terminal 5 and ground.

      5 - Ground: Continuity should exist  .

      Is the inspection result normal? 

      YES: Replace front door lock assembly RH (door unlock sensor).

      NO: Repair or replace harness for open.

      Fig 6: Checking Continuity Between Front Door Lock Assembly RH (Door Unlock Sensor) Connector D103 Terminal 5 And Ground

      Courtesy of NISSAN NORTH AMERICA, INC.