Door Mirror Defogger LH With Automatic Drive Positioner

DOOR MIRROR DEFOGGER LH (WITH AUTOMATIC DRIVE POSITIONER)

Description

Heats the heating wire with the power supply from the rear window defogger relay to prevent the door mirror from fogging up.


Component Function Check


1. CHECK DOOR MIRROR DEFOGGER LH

Check that heating wire of door mirror defogger LH is heated when turning the rear window defogger switch
ON.
Is the inspection result normal?
YES- Door mirror defogger is OK.
NO- .


Diagnosis Procedure

Regarding Wiring Diagram information, [1][2]Electrical Diagrams.

1. CHECK POWER SUPPLY

Check if the following fuse in the IPDM E/R is blown.





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 DOOR MIRROR DEFOGGER POWER SUPPLY CIRCUIT






Check voltage between IPDM E/R connector E120 terminal 23 and ground.





Is the inspection result normal?
YES- GO TO 3
NO- Replace IPDM E/R. Service and Repair.

3. CHECK DOOR MIRROR DEFOGGER POWER SUPPLY CIRCUIT 2

1.Turn ignition switch OFF.
2.Disconnect door mirror LH.
3.Turn ignition switch ON.
4.Check voltage between door mirror LH connector D4 terminal 10 and ground.










Is the inspection result normal?
YES- GO TO 4
NO- Repair or replace harness.

4. CHECK DOOR MIRROR DEFOGGER CIRCUIT






1.Turn ignition switch OFF.
2.Disconnect IPDM E/R and door mirror LH.
3.Check continuity between IPDM E/R connector E120 terminal
23 and door mirror LH connector D4 terminal 10.
23 - 10: Continuity should exist.
Is the inspection result normal?
YES- GO TO 5
NO- Repair or replace harness.

5. CHECK DOOR MIRROR DEFOGGER GROUND CIRCUIT






Check continuity between door mirror LH connector D4 terminal 11
and ground.
11 - Ground: Continuity should exist.
Is the inspection result normal?
YES- GO TO 6
NO- Repair or replace harness.

6. CHECK DOOR MIRROR DEFOGGER LH

Check door mirror defogger LH.
.
Is the inspection result normal?
YES- GO TO 7
NO- Replace door mirror. Door Mirror Assembly.

7. CHECK INTERMITTENT INCIDENT

Check intermittent incident.
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.


Component Inspection


1. CHECK DOOR MIRROR DEFOGGER






Check continuity between door mirror LH terminals 10 and 11.
10 - 11: Continuity should exist.
Is the inspection result normal?
YES- Check the condition of the harness and the connector.
NO- Replace malfunctioning door mirror LH. Door Mirror Assembly.