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Home >> Oldsmobile >> 1999 >> Alero V6-3.4L VIN E >> Repair and Diagnosis >> Relays and Modules >> Relays and Modules - Powertrain Management >> Relays and Modules - Computers and Control Systems >> Body Control Module >> Description and Operation >> Body Control System >> Brake Indicator
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Brake Indicator

The red BRAKE indicator illuminates when Ignition 1 is active and the park brake is engaged. The Body Control Module (BCM) transmits a Class 2 serial data message to the instrument cluster indicating the park brake status. Also, the BRAKE indicator illuminates when the Electronic Brake Control Module (EBCM) detects a brake fail condition. The instrument cluster commands the BRAKE indicator ON. The BRAKE Indicator turns OFF under the following conditions:

The brake fail indicator command Class 2 serial data message from the EBCM is disabled The Class 2 BCM park brake message is disengaged

If the EBCM commands the BRAKE indicator to illuminate, the cruise function is canceled. In the event of an EBCM Class 2 serial data loss, the BRAKE indicator illuminates. In the event of a BCM Class 2 serial data loss, the park brake status and the indicator remain in their last states.
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