Test results

 

1

 

CHECK USING DIAGNOSIS EQUIPMENT

 

OK (NO FAULTS DETECTED)

 

FAULT DETECTED

 

OPERATION

   

With vehicle's engine running, with climate control system on (compressor button ON).

Connect the diagnosis equipment and check the error indicating pressure switch malfunction.

 

Go to Step 2

 

The diagnosis equipment signals errors related to malfunction of the pressure switch

 

Proceed as instructed by the diagnosis tool

 

2

 

PRESSURE SWITCH PIN ELECTRICAL CONNECTION CHECK

 

OK (NO FAULTS DETECTED)

 

FAULT DETECTED

 

OPERATION

   

Check for loose or faulty pressure switch connections

 

Go to Step 3

 

Identify any faults on the pressure switch connections

 

Restore the correct pressure switch connections

 

3

 

PRESSURE SWITCH OPERATION CHECK

 

OK (NO FAULTS DETECTED)

 

FAULT DETECTED

 

OPERATION

   

Check that the pressure switch is working correctly

 

End of diagnosis

 

The pressure switch is not working correctly

 

Replace the pressure switch

Op. 5040B20 AIR CONDITIONING LINEAR PRESSURE TRANSDUCER - R.R.