Contents

			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 continuity of the wiring	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	Earths not correctly tightened, oxidised, painted	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 correctly See Test 1056BW Check on the throttle body actuator operation	End of diagnosis	Throttle body not working correctly	Replace the throttle body Op. 1056B14 THROTTLE BODY - R + R