CAUTION:: This system operates using fluid pressure up to 12 400 kPa
(1800 psi). Some malfunctions can cause this pressure to be trapped
in the system. Use caution when loosening pipe fittings on a system that does
not work or personal injury can result.
CAUTION:: Do not disassemble the actuator. Always service the actuator as a unit.
The actuator contains a large spring under tension. Disassembling the actuator
allows the spring to expand with great force, which can result in personal
injury.
CAUTION:: If the parking brake applies due to an electrical system failure, activate
the parking brake by pulling out the parking brake switch before exiting the
vehicle. Failure to do so can result in the parking brake releasing when
the electrical system is repaired. This can allow the vehicle to move and
cause personal injury.
The electric/auto parking brake system is basically maintenance
free. When doing work on this system, the following must be observed:
| • | Before doing welding work on the vehicle with an electric welding
unit, turn the ignition switch OFF and disconnect the PCM connector. |
| • | Do not use a fast charger for starting the engine. |
| • | Disconnect the negative battery cable when fast charging. Refer
to
Battery Charging
in Engine
Electrical. |
| • | Never disconnect the battery from the vehicle electrical system
with the engine running. |
| • | Make sure all the wiring harness connectors are securely connected. |
| • | Proper system operation can only be achieved if the system is
restored to its original equipment condition. Always note the routing, position,
mounting, and location of the following parts when servicing the system: |
| • | The above mentioned items do not cover every possibility, but
must be followed when working on the electric/auto parking brake system. When
doing service work, become familiar with the system, and how the system
interrelates with other components on the vehicle. |
