Both Doors Mirror Defogger Do Not Operate But Rear Window Defogger Operates

BOTH DOORS MIRROR DEFOGGER DON'T OPERATE BUT REAR WINDOW DEFOGGER OPERATES

Diagnosis Procedure

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

1. CHECK DOOR MIRROR DEFOGGER FUSE

Check if the following fuse in fuse block (J/B) is blown.





Is the inspection result normal?
YES- GO TO 2.
NO- Replace the blown fuse after repairing the affected circuit.

2. CHECK DOOR MIRROR DEFOGGER CIRCUIT

1.Turn ignition switch OFF.
2.Disconnect the following harness connectors.
-Fuse block (J/B) connector M4
-Door mirror LH D4 (without automatic drive positioner), D6 (with automatic drive positioner)
-Door mirror RH D107 (without automatic drive positioner), D116 (with automatic drive positioner)
3.Check continuity between fuse block (J/B) harness connector and door mirror defogger harness connectors.





4.Check continuity between fuse block (J/B) harness connector M4 terminal 5P and ground.





Is the inspection result normal?
YES- GO TO 3.
NO- Repair or replace harness.

3. CHECK DOOR MIRROR DEFOGGER

Check door mirror LH.
Refer to "Component Function Check" Door Mirror Defogger LH Without Automatic Drive Positioner (without automatic drive positioner) or

Component
Function Check" (with automatic drive positioner).
Check door mirror RH.
Refer to "Component Function Check" Door Mirror Defogger RH Without Automatic Drive Positioner (without automatic drive positioner)
"Component
Function Check" (with automatic drive positioner).
Is the inspection result normal?
Revision: March 20122013 Infiniti JX
YES- Check intermittent incident. Refer to "Intermittent Incident" Intermittent Incident.
NO- Repair or replace the malfunctioning parts.
Revision: March 20122013 Infiniti JX