2011 XJ electronic handrake not working
Discussion
Morning all,
So yesterday when I went to apply the handbrake on my XJ Supersport I got a flashing red triangle and 'handbrake can't be applied'.
I spent some time looking on the web yesterday with no joy, anyone have a few things I can check before throwing it in the garage?
Many thanks!,
Brett
So yesterday when I went to apply the handbrake on my XJ Supersport I got a flashing red triangle and 'handbrake can't be applied'.
I spent some time looking on the web yesterday with no joy, anyone have a few things I can check before throwing it in the garage?
Many thanks!,
Brett
Hi Brett. It's fairly easy to check the motor on most Jags. I assume the battery is in the boot on the X351?
The park brake module is probably in the boot behind some trim/carpet (on the basis that that's where it is on the other Jags). The module has 2 multi-plugs I think, and of these the two power cables should be obvious from their much thicker gauge than all the other signal cables.
You can quite safely jump these two main power cables from the battery terminals and see if the motor moves. You just switch polarity to reverse the motor. I had to do this to release the park brake on my old S-Type when stranded away from home when the module failed (it burned out because the motor was on the way out and drawing too much current - so I replaced both module and motor mechanism).
The mechanism is a 12v electric motor driving a screwjack. The screwjack pulls two ordinary steel cables (at least on the XF and S-Type). Those motor units could let water in and rust up. If the motor is hesitant to move, it needs removed and either cleaned / lubricated or possibly replaced - it should be above the differential bolted to the rear subframe. If the motor moves happily, then it's a logic issue either in the park brake module or the module is lacking data about what car & driver are trying to do and it's a job for Jaguar diagnostics.
The park brake module is probably in the boot behind some trim/carpet (on the basis that that's where it is on the other Jags). The module has 2 multi-plugs I think, and of these the two power cables should be obvious from their much thicker gauge than all the other signal cables.
You can quite safely jump these two main power cables from the battery terminals and see if the motor moves. You just switch polarity to reverse the motor. I had to do this to release the park brake on my old S-Type when stranded away from home when the module failed (it burned out because the motor was on the way out and drawing too much current - so I replaced both module and motor mechanism).
The mechanism is a 12v electric motor driving a screwjack. The screwjack pulls two ordinary steel cables (at least on the XF and S-Type). Those motor units could let water in and rust up. If the motor is hesitant to move, it needs removed and either cleaned / lubricated or possibly replaced - it should be above the differential bolted to the rear subframe. If the motor moves happily, then it's a logic issue either in the park brake module or the module is lacking data about what car & driver are trying to do and it's a job for Jaguar diagnostics.
You could try this:
http://www.jaginfo.org/showthread.php?1503-EPB-Res...
It's not going to fix low brake pads though! (Sorry).
http://www.jaginfo.org/showthread.php?1503-EPB-Res...
It's not going to fix low brake pads though! (Sorry).
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