BURNT OUT BULB CHECK FUNCTION CONSTRUCTION/OPERATION


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System Wiring Diagram

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1
Instrument cluster
2
Brake system warning light
3
Microcomputer
4
Timer
5
AND
6
CAN control circuit
7
Parking brake switch
8
Brake fluid level sensor


Operation

•  The microcomputer in the instrument cluster illuminates the brake system warning light for approx. 3 s and then turns it off when the ignition switch is turned to the ON position. (When the parking brake switch or the brake fluid level sensor is on, the brake system warning light remains illuminated.)