Contents

			Test results
1	COMPONENT CONCERNED	CHECK WIRING BETWEEN TYRE PRESSURE CONTROL UNIT AND INSTRUMENT PANEL	OK (NO FAULTS DETECTED)	FAULT DETECTED	OPERATION
	Wiring between tyre pressure control unit and instrument panel	Check that the CAN connections between the tyre pressure control unit and the instrument panel are not faulty. In particular, check that there are no open circuit or short circuit problems.	Go to Step 2	There are faulty connections	Restore or, if necessary, replace the wiring
2	COMPONENT CONCERNED	INSTRUMENT PANEL CONNECTION CHECK	OK (NO FAULTS DETECTED)	FAULT DETECTED	OPERATION
	Instrument panel connections	Disconnect/reconnect the instrument panel connectors and check for the presence of loose pins	Go to Step 3	Presence of a loose pin	Restore the correct operation of the connector
3	COMPONENT CONCERNED	TYRE PRESSURE CONTROL UNIT CONNECTION CHECK	OK (NO FAULTS DETECTED)	FAULT DETECTED	OPERATION
	Tyre pressure control unit connections	Disconnect/reconnect the tyre pressure control unit connectors and check for the presence of loose pins	Go to Step 4	Presence of a loose pin	Restore the correct operation of the connector
4	COMPONENT CONCERNED	INSTRUMENT PANEL SUPPLY CHECK	OK (NO FAULTS DETECTED)	FAULT DETECTED	OPERATION
	Instrument panel power supply	Check that the power supply to the Instrument panel is correct	Go to Step 5	Power supply not correct	Restore the correct power supply
5	COMPONENT CONCERNED	TYRE PRESSURE CONTROL UNIT SUPPLY CHECK	OK (NO FAULTS DETECTED)	FAULT DETECTED	OPERATION
	Tyre pressure control unit supply	Check that the power supply for the tyre pressure control unit is correct	Go to Step 6	Power supply not correct	Restore the correct power supply
6	COMPONENT CONCERNED	INSTRUMENT PANEL OPERATION CHECK	OK (NO FAULTS DETECTED)	FAULT DETECTED	OPERATION
	Instrument panel	Check that the instrument panel is operating correctly	Go to Step 7	Incorrect instrument panel operation	Replace the instrument panel Op. 5560B10 CONTROL PANEL - R+R
7	COMPONENT CONCERNED	TYRE PRESSURE CONTROL UNIT OPERATION CHECK	OK (NO FAULTS DETECTED)	FAULT DETECTED	OPERATION
	Tyre pressure control unit	Check that the tyre pressure control unit is operating correctly	End of diagnosis	Tyre pressure control unit not operating correctly	Replace the tyre pressure control unit Op. 4450B91 TPMS SYSTEM CONTROL UNIT R R