145 - MiTo   1.4 16v TJet   Compressor air conditioner relay - Circuit short to battery   P0645-12   
 

 

 

 

Test results
 

1

  

COMPONENT CONCERNED

  

POWERTRAIN CONTROL MODULE AND AIR CONDITIONING COMPRESSOR RELAY ELECTRICAL CONNECTION CHECK

  

OK (NO FAULTS DETECTED)

  

FAULT DETECTED

  

OPERATION
 

 

Air conditioning compressor relay and Powertrain Control Module connections

  

Check for loose connections on the Powertrain Control Module or on the air conditioning compressor relay

  

Go to Step 2

  

Presence of loose connections

  

Restore the correct connections
 

2

  

COMPONENT CONCERNED

  

WIRING CHECK BETWEEN POWERTRAIN CONTROL MODULE AND AIR CONDITIONING COMPRESSOR RELAY

  

OK (NO FAULTS DETECTED)

  

FAULT DETECTED

  

OPERATION
 

 

Wiring between Powertrain Control Module and air conditioning compressor relay

  

Check for a short circuit to battery on the wiring between pin 29 of the Powertrain Control Module and the air conditioning compressor relay

  

End of diagnosis

  

Presence of short circuit to battery on wiring

  

Restore the correct wiring insulation to battery