Trouble Diagnoses Symptom Chart

WARNING: This page is about a different car, the 2006 Nissan Titan. However, it is still accessible from the selected car via links, so may be relevant.

Make sure other systems using the signal of the following systems operate normally.

TROUBLE DIAGNOSES SYMPTOM CHART

Symptom	Diagnoses / Service procedure
Rear window defogger and door mirror defoggers do not operate. (With heated mirrors)	1. BCM POWER SUPPLY AND GROUND CIRCUIT CHECK
	2. IPDM E/R AUTO ACTIVE TEST CHECK
	3. REAR WINDOW DEFOGGER SWITCH CIRCUIT CHECK
	4. REAR WINDOW DEFOGGER CIRCUIT CHECK
	5. REPLACE IPDM E/R
Rear window defogger does not operate. (Without heated mirrors)	1. BCM POWER SUPPLY AND GROUND CIRCUIT CHECK
	2. IPDM E/R AUTO ACTIVE TEST CHECK
	3. REAR WINDOW DEFOGGER SWITCH CIRCUIT CHECK
	4. REAR WINDOW DEFOGGER CIRCUIT CHECK
	5. FILAMENT CHECK
	6. REPLACE IPDM E/R
Rear window defogger does not operate but both of door mirror defoggers operate. (With heated mirrors)	1. REAR WINDOW DEFOGGER CIRCUIT CHECK
	2. FILAMENT CHECK
	3. REPLACE IPDM E/R
Both door mirror defoggers do not operate but rear window defogger operates. (With heated mirrors)	1. DOOR MIRROR DEFOGGER POWER SUPPLY CIRCUIT CHECK
	2. REPLACE IPDM E/R
Door mirror LH defogger does not operate.	1. DOOR MIRROR LH DEFOGGER CIRCUIT CHECK
Door mirror RH defogger does not operate.	1. DOOR MIRROR RH DEFOGGER CIRCUIT CHECK
Rear window defogger switch does not light, and rear window defogger is not shown on the display, but rear window defogger operates.	1. REAR WINDOW DEFOGGER SIGNAL CHECK