Help .. New club member

[Souter]

Abs light on,,£2000 for new module from porsche apart from a second hand unit anyone any ideas,,


Thanks
Mal S

Blue boxster S , 986

 

[ALZ 1933]

Have you had it plugged into a diagnostic system to show that its the module that is at fault? You say the lights on, it may just be a wheel sensor at £50 a lot better than £2000!

 

[Souter]

Yes plugged into diagnostic today ,, use local specialist garage



Thanks for your help

 

[Red981]

Probably a Wheel /calliper sensor - about £8 + vat from Porsche
for a Boxster 981 if you DIY.

 

[koevoet]

Just picked up my own 981 last month, let us know how you get on and how easy the repair was /was not! That's not lasted long?!

 

[BartyB]

As others have said, your 986's problem could well be related to a wheel speed sensor issue, but before getting your hands dirty it's worth checking the main fuse panel in the footwell to see if the ABS control module fuse (B9) is intact.

Also, if any work was carried out on the car in the front trunk before you bought it, it's worth checking to see if the ABS control module plug has been removed. It's not unknown for a ham-fisted mechanic to ram a plug back and bend a pin.

If these check out, it's time to take the wheels off. Look at the electrical harness connectors located on the struts to see if one has become unseated. These can get disconnected or the contacts may become corroded if they were not refitted correctly. If you've got a digital multimeter you could try checking for resistance or continuity between connector pins 4 & 5.

You can download a very useful document about the Boxster ABS system here. It includes a list of fault codes and a detailed description of causes and cures.

What was the outcome of the diagnostic check BTW?

 

[Souter]

Thanks for everyone who responded , Hopefully problem solved after new brake pedal switch fitted last week,, ( no abs, psm lights on now )
A lot cheaper than a abs unit , The diagnostic code had read pressure valve faulty !


Thanks again
Mal S

Boxster S (986)

 

[BartyB]

Very pleased to hear your problem has been resolved Malcolm, particularly as showing an ABS light is an MoT fail these days.

Just out of interest, did you note the fault code returned by the test system? Was it 4266 which is covered in pages 24 and 25 of the 986 ABS Diagnostic / Faultfinding Guide?

 

[Souter]

Sorry Alan,, did not note fault code,
Probably should of took more notice but abs pump ££££ at the time, must admit the garage have been extremely helpful ( have used them for years )




Thanks
Mal S

Boxster S (986)
R3