Contents

			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	COMPONENT CONCERNED	CHECK THROTTLE BODY WIRING	OK (NO FAULTS DETECTED)	FAULT DETECTED	OPERATION
	Wiring between throttle body and Powertrain Control Module	Check for the presence of a short circuit to earth in the wiring from motorised throttle to Powertrain Control Module	Go to Step 3	Presence of short circuit to earth	Restore the correct wiring insulation to earth
3	COMPONENT CONCERNED	CHECK THROTTLE BODY WIRING	OK (NO FAULTS DETECTED)	FAULT DETECTED	OPERATION
	Wiring between throttle body and Powertrain Control Module	Check for the presence of a short circuit to battery in the wiring from motorised throttle to Powertrain Control Module	Go to Step 4	Presence of short circuit to battery	Restore the correct wiring insulation to battery
4	COMPONENT CONCERNED	THROTTLE BODY WIRING CONTINUITY CHECK	OK (NO FAULTS DETECTED)	FAULT DETECTED	OPERATION
	Wiring between throttle body and Powertrain Control Module	Check for the presence of an open circuit in the wiring from motorised throttle to Powertrain Control Module	Go to Step 5	Presence of open circuit	Restore the correct continuity for the wiring
5	COMPONENT CONCERNED	THROTTLE BODY EARTH CONNECTION CHECK	OK (NO FAULTS DETECTED)	FAULT DETECTED	OPERATION
	Throttle body earth connections	Check that the throttle body earth connections are correctly tightened and check for the presence of oxidised or painted earth connections	Go to Step 6	Failure on the throttle body earth connections	Restore the correct throttle body earth connections
6	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