Contents

			Test results
1	COMPONENT CONCERNED	ELECTRICAL CONNECTIONS CHECK	OK (NO FAULTS DETECTED)	FAULT DETECTED	OPERATION
	Connections on timing sensor and engine management control unit	Check for loose electrical connections at the sensor and/or at the engine management control unit.	Go to Step 2	Presence of loose electrical connections.	Restore the correct connections.
2	COMPONENT CONCERNED	TIMING SENSOR WIRING CHECK	OK (NO FAULTS DETECTED)	FAULT DETECTED	OPERATION
	Timing sensor wiring	Check for the presence of a short circuit to earth in the wiring from timing sensor to engine management control unit	Go to Step 3	Presence of short circuit to earth	Restore correct insulation to earth
3	COMPONENT CONCERNED	TIMING SENSOR WIRING CHECK	OK (NO FAULTS DETECTED)	FAULT DETECTED	OPERATION
	Timing sensor wiring	Check for the presence of a short circuit to Vbatt in the wiring from timing sensor to engine management control unit	Go to Step 4	Presence of short circuit to Vbatt.	Restore correct insulation to +battery
4	COMPONENT CONCERNED	TIMING SENSOR WIRING CHECK	OK (NO FAULTS DETECTED)	FAULT DETECTED	OPERATION
	Timing sensor wiring	Check for the presence of an open circuit in the wiring from timing sensor to engine management control unit	Go to Step 5	Presence of open circuit	Restore the correct continuity for the wiring
5	COMPONENT CONCERNED	TIMING CHECK	OK (NO FAULTS DETECTED)	FAULT DETECTED	OPERATION
	Engine	Check that the timing is correct	Go to Step 6	Timing not correct.	Restore the correct timing
6	COMPONENT CONCERNED	SENSOR POSITION CHECK	OK (NO FAULTS DETECTED)	FAULT DETECTED	OPERATION
	timing sensor	Check that the sensor is correctly positioned	Go to Step 7	Sensor not in the correct position.	Place the sensor in the correct position.
7	COMPONENT CONCERNED	CHECK ON OPERATION OF TIMING SENSOR	OK (NO FAULTS DETECTED)	FAULT DETECTED	OPERATION
	timing sensor	Check that the timing sensor is working properly.	End of diagnosis	Timing sensor not working	Replace the timing sensor Op. 1056B51 CAM ANGLE SENSOR - R.R.