Diagnosis Procedure

Regarding Wiring Diagram information, refer to "WIRING DIAGRAM - COUPE " or "WIRING DIAGRAM - SEDAN ".

1. CHECK PUSH-BUTTON IGNITION SWITCH OPERATION

   Press push-button ignition switch and check if it turns to ON.

   Does ignition switch turn to ON? 

   YES: GO TO 2

   NO: GO TO  4

2. CHECK IGNITION SWITCH OUTPUT SIGNAL (IPDM E/R)
   1. Disconnect push-button ignition switch.
   2. Check voltage between IPDM E/R harness connector and ground.

      Terminals			Voltage (V)
      (+)		(-)
      IPDM E/R		Ground
      Connector	Terminal
      E18	28		Battery voltage

      Fig 1: Checking Ignition Switch Output Signal (IPDM E/R)

      Courtesy of NISSAN NORTH AMERICA, INC.

      Is the inspection result normal? 

      YES: GO TO 3

      NO: Replace IPDM E/R. Refer to "REMOVAL AND INSTALLATION ".

3. CHECK PUSH-BUTTON IGNITION SWITCH CIRCUIT (IPDM E/R)
   1. Disconnect IPDM E/R and BCM.
   2. Check continuity between IPDM E/R harness connector (A) and push-button ignition switch harness connector (B).

      IPDM E/R		Push-button ignition switch		Continuity
      Connector	Terminal	Connector	Terminal
      E18 (A)	28	M38 (B)	4	Yes

      Fig 2: Checking Push-Button Ignition Switch Circuit (IPDM E/R)

      Courtesy of NISSAN NORTH AMERICA, INC.
   3. Check continuity between IPDM E/R harness connector and ground.

      IPDM E/R		Ground	Continuity
      Connector	Terminal
      E18	28		No

      Fig 3: Checking Push-Button Ignition Switch Circuit (IPDM E/R)

      Courtesy of NISSAN NORTH AMERICA, INC.

      Is the inspection result normal? 

      YES: GO TO  6

      NO: Repair or replace harness.

4. CHECK IGNITION SWITCH OUTPUT SIGNAL (BCM)
   1. Disconnect push-button ignition switch.
   2. Check voltage between BCM harness connector and ground.

      Terminals			Voltage (V)
      (+)		(-)
      BCM		Ground
      Connector	Terminal
      M21	140		Battery voltage

      Is the inspection result normal? 

      YES: GO TO 5

      NO: Replace BCM. Refer to "REMOVAL AND INSTALLATION ".

5. CHECK PUSH-BUTTON IGNITION SWITCH CIRCUIT (BCM)
   1. Disconnect BCM and IPDM E/R.
   2. Check continuity between BCM harness connector and push-button ignition switch harness connector.

      BCM		Push-button ignition switch		Continuity
      Connector	Terminal	Connector	Terminal
      M21	140	M38	4	Yes

   3. Check continuity between BCM harness connector and ground.

      BCM		Ground	Continuity
      Connector	Terminal
      M21	140		No

      Is the inspection result normal? 

      YES: GO TO 6

      NO: Repair or replace harness.

6. CHECK INTERMITTENT INCIDENT

   Refer to "INTERMITTENT INCIDENT ".

   Inspection End.