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Jaguar S type 2.7v6 diesel automatic 06 reg.  intermittently the park brake will not engage and Park brake fault comes up on the dash.  I have been told this could be to do with a sticking rear brake calliper.  Does that make sense. As do not want to go to the hassle of changing them if it would not help.  It did this before and changing the brake pads seemed to help for a while but it has started doing it again.

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Same thing, you just driving the epb motor the other way, You need to check that the epb is working first, operate it manually like in the video with 12volts

could be your calipers have gone stiff, remove cables and check calipers levers operate smoothly and are not seized

check your cable are free and operate smoothly and with the cables off the calipers, check the epb operates smoothly, by operating the epb motor as in the video

it will give a fault if the epb cannot reach a teached position for home hand brake released, if the epb cannot reach a teach position hand brake applied, if its slow reaching either position, if the epb motor goes over or under current and if the epb voltage is less than approx 10.2 volts

if any thing is stiff, cables or calipers or epb, the epb will come up with a fault, the fault can be cleared just by unplugging the epb module in the boot, also shown in the video

if the your operate the epb, with 12volts as in video, best way is with back wheels off the ground , if it apply's and realeses, locks both back wheels applying 12volts one way and releases, back wheel spin freely, 12 volts the other way, it could be a faulty module

make sure you battery is fully charged, a low battery will give you many epb faults, also make sure the engine is running while you do any testing or moving the epb, or it will flatten your battery quickly

also if its only intermitent, check the connector on the epb, make sure the connectors are not corroded, corroded connections with effect motor operation and motor position faults




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