Diagnosis Procedure

Regarding Wiring Diagram information, refer to "WIRING DIAGRAM ".

1. CHECK FUSES

   Check if any of the following fuses in the IPDM E/R are blown.

   COMPONENT PARTS	AMPERE	FUSE NO.
   IPDM E/R	15A	46
   IPDM E/R	15A	47

   Is the inspection result normal? 

   YES: GO TO 2

   NO: If fuse is blown, be sure to eliminate cause of malfunction before installing new fuse.

2. CHECK REAR WINDOW DEFOGGER RELAY

   Check rear window defogger relay.

   Terminal		Condition	Continuity
   Rear window defogger relay
   3	5	12V direct current supply between terminals 1 and 2.	Yes
   		No current supply	No

   Fig 1: Identifying Rear Window Defogger Relay Terminals

   Courtesy of NISSAN NORTH AMERICA, INC.

   Is the inspection result normal? 

   YES: GO TO 3

   NO: Replace rear window defogger relay.

3. CHECK REAR WINDOW DEFOGGER RELAY POWER SUPPLY CIRCUIT
   1. Turn ignition switch ON.
   2. Check voltage between IPDM E/R connector E124 terminal 60 and ground.

      Terminals			Condition of rear window defogger switch	Voltage (V) (Approx.)
      (+)		(-)
      IPDM E/R connector	Terminal
      E124	60	Ground	ON	Battery voltage
      			OFF	0

      Fig 2: Checking Voltage Between IPDM E/R Connector E124 Terminal 60 And Ground

      Courtesy of NISSAN NORTH AMERICA, INC.

      Is the inspection result normal? 

      YES: GO TO 4

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

4. CHECK INTERMITTENT INCIDENT

   Check intermittent incident.

   Refer to "INTERMITTENT INCIDENT "

   Is the inspection result normal? 

   YES: Check the following.

   • Battery power supply circuit.
   • IPDM E/R.

   NO: Repair or replace the malfunctioning parts.