Brake Warning Indication
WARNING: This page is about a different car, the 2004 Mercury Monterey and 2004 Ford Freestar. However, it is still accessible from the selected car via links, so may be relevant.
The brake warning indicator supports 3 separate functions: base brake system failure, low brake fluid level, and engagement of the parking brake. These functions are controlled by the parking brake control switch, the brake fluid level switch and the brake system itself. The brake fluid level switch and the parking brake control switch are hardwired directly to the SJB. The status of both the brake fluid level and parking brake switches are sent from the SJB to the instrument cluster over circuits 1309 (RD/YE) and 1305 (DB). The base brake system status is monitored by the ABS/TC module and sent to the instrument cluster over the SCP communication network.