Diagnosis Procedure

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

1. CHECK HEATED MIRROR RELAY

   Check heated mirror relay.

   Fig 1: Identifying Heated Mirror Relay Terminals

   Courtesy of NISSAN NORTH AMERICA, INC.

   Terminal		Condition	Continuity
   Heated mirror relay
   3	5	12V direct current supply between terminals 1 and 2.	Yes
   		No current supply	No

   Is the inspection result normal? 

   YES: GO TO 2

   NO: Replace heated mirror relay.

2. CHECK DOOR MIRROR DEFOGGER FUSE

   Check fuse 43 (15A) in IPDM E/R.

   Is the inspection result normal? 

   YES: GO TO  4

   NO: GO TO 3

3. CHECK DOOR MIRROR DEFOGGER POWER SUPPLY CIRCUIT FOR A SHORT
   1. Turn ignition switch OFF.
   2. Disconnect the following harness connectors.
      • IPDM E/R connector E120
      • Door mirror LH
      • Door mirror RH
   3. Check continuity between IPDM E/R harness connector E120 terminal 23 and ground.

      IPDM E/R connector	Terminal	Ground	Continuity
      E120	23		No

      Is the inspection result normal? 

      YES: Replace fuse 43 (15A).

      NO: Repair or replace harness.

4. CHECK DOOR MIRROR DEFOGGER POWER SUPPLY CIRCUIT
   1. Turn ignition switch ON.
   2. Check voltage between IPDM E/R harness connector E120 terminal 23 and ground.

      Terminals			Condition of rear window defogger switch	Voltage (V) (Approx.)
      (+)		(-)
      IPDM E/R connector	Terminal
      E120	23	Ground	ON	Battery voltage
      			OFF	0

      Is the inspection result normal? 

      YES: GO TO 5

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

5. CHECK DOOR MIRROR DEFOGGER
   1. Check door mirror LH. Refer to "DIAGNOSIS PROCEDURE ".
   2. Check door mirror RH. Refer to "DIAGNOSIS PROCEDURE ".

      Is the inspection result normal? 

      YES: Check intermittent incident. Refer to "INTERMITTENT INCIDENT ".

      NO: Repair or replace the malfunctioning parts.