The brake warning indicator is located in the instrument cluster. The
brake warning indicator illuminates in order to warn the driver of conditions
in the brake system which may result in reduced braking capability.
The following conditions will turn on the brake warning indicator:
| • | The ignition switch is in the ON position. The brake warning
indicator illuminates When the key is turned ON for a bulb check in order
to notify the driver that the brake warning circuit is operating properly. |
| | The brake indicator receives ignition voltage through the IG
fuse. When the ignition switch is in the ON position, a path to ground is
provided to the brake indicator through the ignition switch to G200. With
power and ground provided, the indicator illuminates for 3 secoinds. |
| • | The park brake is applied or not fully released. |
| | When the parking brake is applied, the switch on the park brake lever closes,
sending a ground signal to the daytime running lamps (DRL) control module.
The DRL control module controls the ground for the brake indicator. |
| • | The brake fluid level is low. |
| | If the brake fluid level
drops in the master cylinder reservoir, the brake fluid level switch closes,
providing a path to G104 for the brake indicator. |
