Problem Symptoms Table
If a normal system code is displayed during the DTC check but the problem still occurs, check the circuits for each problem symptom in the order given in PROBLEM SYMPTOMS REFERENCE .
HINT:
Inspect the "Fuse" and "Relay" before confirming the suspected areas shown in PROBLEM SYMPTOMS REFERENCE .
Inspect each suspected area in numerical order, in relation to the corresponding symptom.
If the malfunction still exists after checking and confirming that all the circuits are normal, replace the ECM.
WINDOW DEFOGGER SYSTEM
PROBLEM SYMPTOMS REFERENCE
| Symptom | Suspected area | See |
|---|---|---|
| Rear window defogger does not operate (Indicator ON) | 1. RR DEF relay | DEFOGGER RELAY |
| 2. Rear window defogger wire | WINDOW DEFOGGER WIRE | |
| 3. A/C ECU, Front controller | - | |
| 4. Wire harness | - | |
| Rear window defogger does not operate (Indicator OFF) | 1. RR DEF relay | DEFOGGER RELAY |
| 2. Air conditioning control panel | - | |
| 3. A/C ECU | TERMINALS OF ECU | |
| 4. Front controller | - | |
| 5. Rear window defogger wire | WINDOW DEFOGGER WIRE | |
| 6. Wire harness | - | |
| Mirror heater does not operate (Indicator ON) | 1. RR DEF relay | DEFOGGER RELAY |
| 2. Outer rear view mirror assembly | REMOVAL | |
| 3. A/C ECU, Front controller | - | |
| 4. Wire harness | - | |
| Mirror heater does not operate (Indicator OFF) | 1. RR DEF relay | DEFOGGER RELAY |
| 2. Air conditioning control panel | - | |
| 3. A/C ECU | TERMINALS OF ECU | |
| 4. Front controller | - | |
| 5. Outer rear view mirror | REMOVAL | |
| 6. Wire harness | - |