S-Type (X200) V8-4.2L (2005)
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Parking Brake Lever: Description and Operation
Parking Brake
Electric Park Brake
The operation of the electric parking brake (EPB) system, is by a pull/push switch, (pull for parking brake activation and push for parking brake
deactivation), which is mounted on the floor console. The EPB calipers are activated via cables by an electric motor and actuator unit which is
mounted on the rear subframe. Overall control of the EPB is from a control module which is located in the luggage compartment behind the right-hand
rear luggage compartment trim panel. On vehicles without Brembo brakes, the parking brake is achieved through the conventional rear brake pads.
EPB Operation
The EPB system will apply the parking brake when the switch is operated and the ignition key is removed from the ignition. If the parking brake
switch is not operated when removing the ignition key, the EPB system will automatically apply the parking brake. An instrument cluster warning
lamp and message accompanied by an audible warning chime will be heard if vehicle motion is detected whilst the parking brake is being applied.
Where EPB is applied at speeds below 3 kph the parking brake will apply full force, at speeds of 3-32 kph, the EPB will apply for the length of time
the switch is applied. Repeated pulls of the switch will increase the parking brake effort until full force is achieved. Above 32 kph the EPB will apply
for booms, then steps of 250 ms if the switch is held up. Pulling the switch once and releasing it will apply the parking brake for 500 ms, each
subsequent pull will apply the parking brake for 250 ms steps until full force is applied. Pushing the switch or throttle application will release the
parking brake (In all cases the EPB switch has overall priority).
Drive Away Release
For automatic vehicles, the EPB will release when drive or reverse is selected and the throttle is being applied.
