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Richard
Richard, Jaguar Technician
Category: Jaguar
Satisfied Customers: 15341
Experience:  12 years at a Ford/Lincoln Mercury and Jaguar dealer as technician and shop foreman.
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Just got a jump start and now I get a park brake fault and

Customer Question

Just got a jump start and now I get a park brake fault and cannot move
JA: Have you checked the battery, particularly the terminal connections? Are they corroded?
Customer: No
JA: What is the model/year of your Jaguar?
Customer: 2007 xj8
JA: Are you fixing your XJ8 yourself? What have you tried so far?
Customer: Just had it jump started
JA: Anything else you want the mechanic to know before I connect you?
Customer: No
Submitted: 2 months ago.
Category: Jaguar
Expert:  Richard replied 2 months ago.

This is usually caused by the parking brake module and it is caused by the low voltage. First I recommend we fuly recharge and have the battery tested to make sure it is not weak. Then disconnect the negative battery terminal cable for about 30 minutes. Reconnect it and start the engine. Pump the brakes then while holding your foot ont he brake pull up the parking brake switch then see if it will disengage. If not let me know.

Customer: replied 2 months ago.
It appears that the battery drained overnight (cause not known).Once I got it jump started and the battery charged up, I ended up disconnecting the battery entirely for about a minute. Upon reconnecting, everything works fine again with parking brake properly disengaging - didn't even lose my radio and seat position settings.Thanks
Expert:  Richard replied 2 months ago.
Glad to hear all is now resolved.

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