145 - MiTo   1.4 16v TJet   Fire Prevention System status (FPS) from Body Control Module (BCM) - Erratic   U0422-8F   


 

 

 

 

Test results

 

1

 

COMPONENT CONCERNED

 

CHECK ERRORS IN BODY COMPUTER

 

OK (NO FAULTS DETECTED)

 

FAULT DETECTED

 

OPERATION

 

 

Body Computer

 

Connect the diagnosis equipment to the Body Computer and check for the presence of errors on the key recognition

 

Go to Step 2

 

Presence of errors on the key recognition

 

Continue as instructed by the diagnosis equipment

 

2

 

COMPONENT CONCERNED

 

CHECK CONNECTIONS ON POWERTRAIN CONTROL MODULE

 

OK (NO FAULTS DETECTED)

 

FAULT DETECTED

 

OPERATION

 

 

Connections on the Powertrain Control Module

 

Check for loose connections on the Powertrain Control Module and the Body Computer

 

Go to Step 3

 

Presence of loose connections

 

Restore the correct connections

 

3

 

COMPONENT CONCERNED

 

POWERTRAIN CONTROL MODULE WIRING CHECK

 

OK (NO FAULTS DETECTED)

 

FAULT DETECTED

 

OPERATION

 

 

Powertrain Control Module wiring

 

Check the continuity of the wiring from the Powertrain Control Module to the Body Computer

 

Go to Step 4

 

Faults in the continuity of the wiring

 

Restore the correct continuity for the wiring

 

4

 

COMPONENT CONCERNED

 

BODY COMPUTER OPERATION CHECK

 

OK (NO FAULTS DETECTED)

 

FAULT DETECTED

 

OPERATION

 

 

Body Computer

 

Check that the Body Computer is working correctly

 

Go to Step 5

 

The Body Computer is not working correctly

 

Replace Body Computer

 Op. 5505A35 MAIN BODY COMPUTER/JUNCTION UNIT - R.R.

 

5

 

COMPONENT CONCERNED

 

POWERTRAIN CONTROL MODULE OPERATION CHECK

 

OK (NO FAULTS DETECTED)

 

FAULT DETECTED

 

OPERATION

 

 

Powertrain Control Module

 

Check that the Powertrain Control Module is working correctly

 

End of diagnosis

 

Powertrain Control Module not working properly

 

Replace the Powertrain Control Module

 Op. 1056B82 INJECTION/IGNITION SYSTEM E.C.U. (ONE) - R + R