Brake Warning System Description P42
BRAKE Lamp
Battery voltage is applied through the GAUGES fuse 8 to the BRAKE indicator
when the ignition switch is in the RUN or START positions. The BRAKE indicator
is lit by having ground applied to it by one of the following circuits:
| • | The brake pressure differential switch |
| • | The park brake pedal (or handle) switch |
| • | The ignition switch, bulb check in START (Canada) |
Brake Warning Indicator System (if equipped with the UJ1 option)
This system uses a pair of switches in the hydraulic system to sense
whether there is sufficient hydraulic pressure and/or fluid flow for effective
brake operation. If either switch opens, the parking brake booster fluid
flow indicator/alarm delay module provides a ground to the brake indicator
as well as the brake booster fluid flow and pressure alarm, sounding the
alarm and lighting the BRAKE indicator to alert the driver that the vehicle's
brake system is experiencing a failure.
ABS Lamp and AUTO PARK Lamp
These lamps indicate brake related problems, but not in the foundation
brakes. Their functions and circuits are covered in the Antilock Brake System
and Park Brake sections respectively.
Brake Warning System Description P32
BRAKE Lamp
Battery voltage is applied through the GAUGES fuse 8 to the BRAKE indicator
when the ignition switch is in the RUN or START positions. The BRAKE indicator
is lit by having ground applied to it by one of the following circuits:
| • | The brake pressure differential switch |
| • | The park brake pull button switch |
| • | The park brake actuator switch |
| • | The ignition switch, bulb check in START (Canada) |
ABS Lamp and AUTO PARK Lamp
These lamps indicate brake related problems, but not in the foundation
brakes. Their functions and circuits are covered in the Antilock Brake System
and Park Brake sections respectively.
Brake Warning System Description P32 Export
BRAKE Lamp
Battery voltage is applied through the GAUGES fuse 8 to the BRAKE indicator
when the ignition switch is in the RUN or START positions. The BRAKE indicator
is lit by having ground applied to it by one of the following circuits:
| • | The brake pressure differential switch |
| • | The park brake pull button switch |
| • | The park brake actuator switch |
| • | The power brake booster fluid flow alarm circuit |
ABS Lamp and AUTO PARK Lamp
These lamps indicate brake related problems, but not in the foundation
brakes. Their functions and circuits are covered in the Antilock Brake System
and Park Brake sections respectively.
