		Test results
1	BRAKE SWITCH CHECK	All OK	Problems encountered	Operation
	Check that the brake switch is working properly Check the continuity of the wiring between the brake switch and the Body Computer	Move on to Step 2	1. Brake switch defective 2. Wiring interrupted	1. Replace the brake switch Op. 5550D10 BRAKE LIGHT SWITCH - R+R 2. Restore correct wiring.
2	ABS CONTROL UNIT CORRECT OPERATION CHECK	All OK	Problems encountered	Operation
	Connect the Examiner diagnostic equipment and check for errors at the ABS control unit.	Move on to Step 3	Errors present	Continue as instructed by the diagnostic equipment.
3	BODY COMPUTER OPERATION CHECK	All OK	Problems encountered	Operation
	Check that the Body computer is working properly	End of diagnosis	Body Computer defective.	Replace the Body Computer Op. 5505A35 MAIN BODY COMPUTER/JUNCTION UNIT - R.R.

Following sharp braking which causes vehicle deceleration of 7 m/sec^2 (calculated by the Body Computer on the basis of the speed measured by the ABS sensors), the Body Computer activates the hazard warning lights. This function is automatically deactivated when the deceleration goes below the level of 2.5 m/sec^2.