Defogger System

This system uses the multiplex communication system, so check diagnosis system of the multiplex communication system before you proceed with troubleshooting.

DEFOGGER SYSTEM PROBLEM SYMPTOMS

Symptom	Suspect Area	Action
Rear window defogger does not operate.	HTR Fuse DEF M-Fuse Defogger Relay Circuit Defogger Switch (in A/C Panel Switch) Defogger Wire Wire Harness Body ECU Noise Filter A/C ECU	LOCATION LOCATION REAR DEFOGGER RELAY CIRCUIT HOW TO PROCEED WITH TROUBLESHOOTING INSPECTION - HOW TO PROCEED WITH TROUBLESHOOTING - HOW TO PROCEED WITH TROUBLESHOOTING
Mirror heater does not operate.	MIR-HTR Fuse (Passenger Side J/B) Mirror Heater Relay Mirror Heater Wire Harness	LOCATION INSPECTION INSPECTION -