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Parking brake indicator doesn't turn off

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Old 07-08-2015, 01:08 AM
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Default Parking brake indicator doesn't turn off

So I've stopped using the handbrake because when I release it the indicator light does not turn off unless I jiggle and repeatedly disengage it.

Is this a relatively easy fix?

2001 XK8 coupe
 
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Old 07-08-2015, 01:58 AM
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It will be caused by a fault with the Handbrake Lever switch. The best illustration of this comes from the Parts Catalogue (see item 3):

Parking brake indicator doesn't turn off-parking-brake.jpg

It could be the harness connector but is more likely to be a sticking or failed switch.

The only time I've changed one of these, I had the driver's seat out which made it easily accessible. Others will be able to advise whether it can be done with the seat in place.

Graham
 

Last edited by GGG; 07-08-2015 at 02:00 AM.
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Old 07-08-2015, 04:59 AM
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This is my 1997 car, but probably not much different to later model :

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Old 07-09-2015, 12:07 AM
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Default Parking brake indicator doesn't turn off

Do you guys think I can spray contact cleaner into the switch without removing the seat? I'd like to try that before replacing the micro switch.
 
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Old 07-09-2015, 03:27 AM
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Can't see why not ..................
Also - check that the wiring connector is firmly attached to the switch - it goes in the side as you can see from my photo - not at the base, and mine was quite loose.
It's fiddly, but I think you could probably replace the switch without taking the seat out - you would need a right-angled Philips screwdriver to be able to get in there but I think it's possible. The switch won't be expensive - a few dollars I would guess.
 
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Old 07-09-2015, 04:49 AM
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I'd certainly go for checking the connection and cleaning the switch before jumping straight to a replacement.

Your Parking Brake is on the opposite side to mine and David's RHD cars so it could be easier to access the switch if it's on the left side of the lever on a LHD vehicle.

Graham
 
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Old 07-23-2015, 07:03 AM
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Hello Graham,

My 1997 RHD XK8 convertible has just started to not show the handbrake warning light on the dash even though the brake is on, do you think this could be caused by the same problem of the Handbrake Lever switch

Cheers

Richard
 
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Old 08-01-2015, 11:52 PM
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Originally Posted by rtucker
Hello Graham,

My 1997 RHD XK8 convertible has just started to not show the handbrake warning light on the dash even though the brake is on, do you think this could be caused by the same problem of the Handbrake Lever switch

Cheers

Richard
Yes, It could be a similar problem. It's not necessarily a bad switch. Sometimes the switch works but the metal contact that engages the switch loses its alignment with age. It doesn't contact the switch as it should.
 
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Old 08-03-2015, 07:43 AM
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unless there is a broken insulation on the wire and and the circuit is grounded somewhere, the switch is not a culprit. The lever release mechanism does not disengage enough to push the switch plunger down. Lubricate the mechanism and spray some WD49 in the cable too. It should solve the problem.
 
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