Thread: ABS Faults logged - a lot of them...

I wonder if most or all of the above relates to a problems or problems with ground. As for the wheel sensor issues, my brake pads have been squeeling for a while and the amigos have been much more common since then...and at times they come on straight after a squeel...

Cheers

With that list, asuming the vehicle hasnt been used with harness /plugs disconnected etc and with fuses and relays checked serviceable, I would be straight to a loom inspection and continuity test from the modulator back to the SLABS ECU, which of course inludes earth points.

Remember that fault codes are related to components affected or associated with a fault and are not neccessarily the culprit.
With this in mind and as nearly every component associated with the ABS system has a registered fault I lean towards a wiring loom problem or water damaged SLABS ECU.

Do the easy obvious checks first, fuses, relays earths. Then the loom check and test.
Operating the pump power bleed and system test functions via your diagnostic equipment will help narrow down the issue.

cheers

Originally Posted by strangy

With this in mind and as nearly every component associated with the ABS system has a registerd fault I lean towards a wiring loom problem or water damaged SLABS ECU.

I agree with Strangy's assessment.

Check the ground in the passenger footwell for a start.

The suspect wiring is basically on 2 connectors (C0505, C0506) and the sheer number of faults would suggest wiring damage. However it does seem unlikely you'd get both shorts to ground and supply if it was a wiring issue, and the faults would mean you've damaged virtually all the wires attached to both connectors.

If you can borrow a SLABS ECU its reasonably easy to unplug the old and temporarily plug the in the new one.

cheers
Paul

Thanks gents...so off with the passenger side kick panel in front of the passenger front door and thats where the wiring is?

Cheers

The ECU are buried behind the glove box so you need to pull the cardboard trim to get in to the connectors from the bottom. The ground post should be on the body so you'll need to remove the plastic trim on the body side of the footwell too.



The above is a pic of the wiring for the SLABS ECU (and BCU) disconnected to swap the ECU out. The SLABS ECU should be the left-most box. You'll have at least the SLABS and BCU modules, and possibly ACE if it's fitted, in this location.

The fault codes 113 and 114 indicate that the ABS module requires the "Option B" treatment and would be one of the causes of the previous intermittent errors.

As per previous posts I would be looking at the earth connections, then clear the codes and see what errors are still present.

Cheers
Ron

The 114 is still being thrown up. I think its pretty clear she has the cracked circuit. I found out today that TRS has reconditioned Wabco modulators for $690 and they have a 12 month warranty. Ian there tells me that they have sold quite a few and no problems. He notes the 114 fault is a throw away jobbie (I didnt raise Option B with him but setting aside that option it is a throw away jobbie). He tells me the mob that do the re-co work go through them and do a good job.

Interesting...a new one is now (down to) $1100 odd.

Cheeers

Originally Posted by ozscott

Interesting...a new one is now (down to) $1100 odd

Hmmm.....$1100 odd for a new one, $690 odd for a recon (and possible repeat errors), or $20 odd for OptionB that would likely see you right!

I know which one I would do (see "did")
No more amigos for me!!