Test results
1
COMPONENT CONCERNED
ELECTRICAL CONNECTIONS CHECK
OK (NO FAULTS DETECTED)
FAULT DETECTED
OPERATION
Connections on throttle body
Check for the presence of loose electrical connections on the throttle body connector
Go to Step 2
Presence of loose electrical connections.
Restore the correct connections.
2
CHECK THROTTLE BODY WIRING
Throttle body wiring
Check for the presence of a short circuit to earth in the wiring from motorised throttle to engine management control unit
Go to Step 3
Presence of short circuit to earth
Restore correct insulation to earth
3
Check for the presence of a short circuit to Vbatt in the wiring from motorised throttle to engine management control unit
Go to Step 4
Presence of short circuit to Vbatt.
Restore correct insulation to +battery
4
Check for the presence of an open circuit in the wiring from motorised throttle to engine management control unit
Go to Step 5
Presence of open circuit
Restore the correct continuity
5
THROTTLE BODY OPERATION CHECK
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