145 - MiTo   1.4 16v TJet   Throttle potentiometer track 1   P0121   


 

 

 

 

Test results

 

1

 

COMPONENT CONCERNED

 

ELECTRICAL CONNECTIONS CHECK

 

OK (NO FAULTS DETECTED)

 

FAULT DETECTED

 

OPERATION

 

 

Connections on throttle body and engine management control unit

 

Check for loose electrical connections at the throttle body connector and at the engine management control unit.

 

Go to Step 2

 

Presence of loose electrical connections.

 

Restore the correct connections.

 

2

 

COMPONENT CONCERNED

 

WIRING CONTINUITY CHECK

 

OK (NO FAULTS DETECTED)

 

FAULT DETECTED

 

OPERATION

 

 

Throttle body wiring

 

Check for breaks in the wiring continuity

 

Go to Step 3

 

Breaks in the wiring continuity.

 

Restore the correct continuity for the wiring.

 

3

 

COMPONENT CONCERNED

 

WIRING INSULATION CHECK

 

OK (NO FAULTS DETECTED)

 

FAULT DETECTED

 

OPERATION

 

 

Throttle body wiring

 

Check the condition of the wiring insulation

 

Go to Step 4

 

Wiring insulation faulty.

 

Restore correct wiring insulation.

 

4

 

COMPONENT CONCERNED

 

EARTH CONNECTIONS CHECK

 

OK (NO FAULTS DETECTED)

 

FAULT DETECTED

 

OPERATION

 

 

Throttle body wiring

 

Check the continuity of the earth connections.

 

Go to Step 5

 

Breaks in the wiring continuity.

 

Restore the correct earth connections.

 

5

 

COMPONENT CONCERNED

 

THROTTLE BODY OPERATION CHECK

 

OK (NO FAULTS DETECTED)

 

FAULT DETECTED

 

OPERATION

 

 

Throttle body

 

Check that the throttle body is working properly

 

End of diagnosis

 

Throttle body not working properly.

 

Replace the throttle body

 Op. 1056B14 THROTTLE BODY - R + R