Contents

		Test results
1	CHECK USING DIAGNOSTIC EQUIPMENT	All OK	Problems encountered	Operation
	Connect the diagnostic equipment to the Body Computer Node and check the vehicle speed parameter.	End of diagnosis	Absence of vehicle speed parameter	Move on to Step 2
2	LINE CONTINUITY CHECK	All OK	Problems encountered	Operation
	Check the continuity of the two-way serial line between the ABS control unit and the Body Computer See E7023 ESP	Go to Step 3	Serial line interrupted.	Restore the correct continuity for the line.
3	CHECK USING DIAGNOSTIC EQUIPMENT	All OK	Problems encountered	Operation
	Keeping the diagnostic equipment connected, connect to the ABS control unit and check the consistency of the individual wheel speeds by selecting the following parameters: - RH front wheel speed - LH front wheel speed - RH rear wheel speed - LH rear wheel speed	End of diagnosis	1. Front speed sensor broken 2. Rear speed sensor broken	1. Replace the front speed sensor Op. 3340A30 RPM SENSOR (ONE) FOR ONE FRONT WHEEL, LEFT OR RIGHT - R.R. 2. Replace the rear speed sensor Op. 3340A34 LEFT OR RIGHT REAR WHEEL RPM SENSOR (ONE) - R.R.