SW L4-1.9L DOHC VIN 7 (1993)
Brake Warning Indicator: Description and Operation
The brake indicator lamp is switched to ground by either the low brake fluid switch (indicating low brake fluid), antilock brake system (ABS) module
(indicating a possible problem within the mechanical function of the brakes), or the park brake switch (indicating the park brake is engaged). When the
brake indicator lamp is switch to ground, current from the ignition circuit flows through the indicator lamp, allowing it to illuminate. This indicates to the
vehicle's operator that the park brake is engaged, brake fluid is low, or there is a possible problem in the mechanical portion of the antilock brake system.
During engine start-up the brake indicator lamp is illuminated, for 2.5 seconds (+/- 0.5 seconds), by the integrated circuit built into the instrument cluster
for a bulb check.
