Cherokee 4WD L6-4.0L VIN S (1998)
Brake Warning Indicator: Description and Operation
SYSTEM OPERATION
The brake warning lamp gives an indication when the parking brake is applied, or when the pressures in the two halves of the split brake hydraulic
system are unequal. The lamp is turned on when the ignition switch is in the Start position as a bulb test. After the bulb test, the lamp is controlled
by hard-wired inputs from the parking brake switch and/or the brake warning switch.
The brake warning switch closes to ground when it senses unequal hydraulic pressures in the two halves of the split brake hydraulic system,
possibly due to low brake fluid level or brake fluid leakage. The parking brake switch closes to ground when the parking brake is applied. Refer to
Brakes and Traction Control/Brakes/Anti-Lock Brake System for more information.
