Nissan Sentra Service Manual: Defogger system symptoms

Symptom diagnosis

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Rear window defogger and door mirror defoggers do not operate

Diagnosis procedure Regarding Wiring Diagram information, refer to DEF-20, "Wiring Diagram". 1. Check rear window defogger switch Check rear window defogger switch. Refer to def-30, &q ...

Other materials:

Basic inspection
Diagnosis and repair workflow Work Flow OVERALL SEQUENCE DETAILED FLOW 1.OBTAIN INFORMATION ABOUT SYMPTOM Interview the customer to obtain as much information as possible about the conditions and environment under which the malfunction occurred. >> GO TO 2. 2.CHECK SYMPTOM ...

Positive crankcase ventilation
Inspection 1.CHECK PCV VALVE With engine running at idle, remove PCV valve from rocker cover. A properly working valve makes a hissing noise as air passes through it. A strong vacuum should be felt immediately when a finger is placed over valve inlet. Is the inspection result normal? YES &g ...

Push-Button Ignition Switch (if so equipped)
WARNINGDo not operate the push-button ignition switch while driving the vehicle except in an emergency. (The engine will stop when the ignition switch is pushed 3 consecutive times in quick succession or the ignition switch is pushed and held for more than 2 seconds.) If ...