Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSTOYOTA2007HIGHLANDER HYBRID, FWDREPAIR AND DIAGNOSIS (SINGLE PAGE)BODY & FRAMEWINDOWSWINDSHIELD/WINDOW GLASS (HYBRID)WINDOW DEFOGGER SYSTEMPROBLEM SYMPTOMS TABLE
2007 Toyota Highlander Hybrid, FWD
Problem Symptoms Table
2007 Toyota Highlander Hybrid, FWDSECTION Problem Symptoms Table
WINDOW DEFOGGER SYSTEM
WINDOW DEFOGGER SYSTEM - PROBLEM SYMPTOMS CHART
| Symptom | Suspected area | See |
|---|---|---|
| w/ Deicer: Front window deicer does not operate (Indicator ON) | 1. FR DEF fuse | PARTS LOCATION |
| 2. HEATER fuse | PARTS LOCATION | |
| 3. DEICER relay | PARTS LOCATION | |
| 4. Front window deicer wire | WINDOW DEFOGGER WIRE | |
| 5. Wire harness | - | |
| w/ Deicer: Front window deicer does not operate (Indicator OFF) | 1. FR DEF fuse | PARTS LOCATION |
| 2. HEATER fuse | PARTS LOCATION | |
| 3. DEICER relay | PARTS LOCATION | |
| 4. Front window deicer wire | WINDOW DEFOGGER WIRE | |
| 5. Wire harness | - | |
| Rear window defogger does not operate (Indicator ON) | 1. RR DEF M-fuse | PARTS LOCATION |
| 2. HEATER fuse | PARTS LOCATION | |
| 3. RR-DEF relay | PARTS LOCATION | |
| 4. Rear window defogger wire | WINDOW DEFOGGER WIRE | |
| 5. Wire harness | - | |
| Rear window defogger does not operate (Indicator OFF) | 1. RR DEF M-fuse | PARTS LOCATION |
| 2. HEATER fuse | PARTS LOCATION | |
| 3. RR-DEF relay | PARTS LOCATION | |
| 4. Rear window defogger wire | WINDOW DEFOGGER WIRE | |
| 5. 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.