Test results

 

1

 

CLIMATE CONTROL SYSTEM CONTROL BULB HOLDER VOLTAGE CHECK

 

OK (NO FAULTS DETECTED)

 

FAULT DETECTED

 

OPERATION

   

Connect a multimeter and switch the engine on, then check that voltage at the ends of the climate control system control bulb holder is correct

 

End of diagnosis

 

Voltage at the ends of the climate control system control bulb holder is not correct

 

Go to Step 2

 

2

 

CLIMATE CONTROL SYSTEM CONTROL UNIT WIRING CHECK

 

OK (NO FAULTS DETECTED)

 

FAULT DETECTED

 

OPERATION

   

Check that the climate control system control unit wiring continuity is correct

 

Go to Step 3

 

Faults in the continuity of the climate control system control unit wiring

 

Restore the correct continuity of the climate control system control unit wiring

 

3

 

CLIMATE CONTROL SYSTEM CONTROL UNIT OPERATION CHECK

 

OK (NO FAULTS DETECTED)

 

FAULT DETECTED

 

OPERATION

   

Check that the climate control system control unit is operating correctly

 

End of diagnosis

 

Climate control system control unit not operating correctly

 

Replace the climate control unit

Op. 5040D10 AIR CONDITIONER CONTROLS SUPPORT - R+R OR REPLACE