Problem Symptoms Table

2007 Lexus ES 350SECTION Problem Symptoms Table

WINDOW DEFOGGER SYSTEM: 

PROBLEM SYMPTOMS CHART

Symptom Suspected Area See
Rear window defogger does not operate 1. A/C No. 2 fuse -
2. RR DEF fuse -
3. RR DEF relay REAR WINDOW DEFOGGER SYSTEM DOES NOT OPERATE 
4. A/C controller assembly REAR WINDOW DEFOGGER SYSTEM DOES NOT OPERATE 
5. A/C amplifier assembly REAR WINDOW DEFOGGER SYSTEM DOES NOT OPERATE 
6. Rear window defogger wire REAR WINDOW DEFOGGER SYSTEM DOES NOT OPERATE 
7. Wire harness -
RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • You smell fuel, burning insulation, or see smoke.
  • Brakes feel soft, pull hard to one side, or make grinding noises.
  • The engine overheats, stalls repeatedly, or misfires under load.
  • You are missing required tools, torque specs, or safe lifting equipment.
  • You are not confident in the next step or safety outcome.