|
|
TROUBLESHOOTING HEATER, AIR CONDITIONER AND VENTILATION 55-17 Step 4. Check the air thermo sensor. Refer to Q: Is the check result normal? YES : Go to Step 5. NO : Replace the air thermo sensor. Step 5. MUT-III diagnosis code Q: Is the diagnosis code set? YES : Replace the automatic air conditioner control panel (A/C-ECU) NO : The trouble can be an intermittent Code No. B1041,B1042: Potentiometer system for the front air mix damper <LHD> COMMENTS ON TROUBLE SYMPTOM This code is set when the air mixing damper control POSSIBLE CAUSES • Malfunction of the front air mixing damper control motor and potentiometer • Damaged the wiring harness or connectors • Malfunction of the automatic air conditioner control panel (A/C-ECU) DIAGNOSIS Step 1. MUT-III data list Check that the following service data display • Item 10: F.Air mix potentiometer • Item 11: F.Air mix potentiometer (Target) Q: Is the check result normal? YES : Go to Step 5. NO : Go to Step 2. FRONT AIR MIXING DAMPER A/C-ECU Wire colour code Front Air Mixing Damper Control Motor And Potentiometer Circuit |