Abs Problem, Warning Lights.

[dexter]

Hi,

I have changed a calliper and fitted new pads. The abs would come on at low speeds then the warning light would come on and stop on. I used vag com and go 01276- ABS hydraulic pump (v64) 16-00- signal outside specification. I also used the measuring blocks which showed me the kph of each wheel. The front driver showed 0 until reaching 10mph ish then it was the same as the other wheels. I have given the connection terminal on the brain a clean and I also checked the drivers side sensor, I could not get this out but I had a good go. After doing this the the ABS warning light is permantely on. Any ideas anyone? I have a ford Galaxy mk2 Tdi. Thanks for any help.

Edited April 22, 2015 by dexter

[BrianH]

if its permantely on that should be showing a different error or possibly more errors than it was before. You look to have isolated a possible fault to one sensor so it sounds like you may have to swap that one (or may be looking at something thats not the issue), However the original error doesn't point to a fault with the wheel sensor, rather the definition of it from the authors of vcds and the wording of the message says its an issue with the pump or control circuitary.

 

http://wiki.ross-tech.com/wiki/index.php/01276

 

01276 - ABS Hydraulic Pump (V64): Signal Outside Specifications Possible Symptoms

• Malfunction Indicator Light (MIL) ON

Possible Causes

• ABS Hydraulic Pump (V64) Connector to Control Module faulty
• Wiring and/or Connector(s) faulty
• ABS Hydraulic Pump (V64) faulty
• Brake Electronics Control Module (J104) faulty

Possible Solutions

• Check ABS Hydraulic Pump (V64) Connector to Control Module
• Check Wiring and/or Connector(s)
• Check/Replace ABS Hydraulic Pump (V64)
• Check/Replace Brake Electronics Control Module (J104)

You may have upset something by playing with the sensor, or just finished off one that was already dying. Or it may be coincidence. The other thing to check is the reluctor ring (toothed ring that the sensor reads - they sometimes snap so check round the whole length of it)

Edited April 22, 2015 by BrianH

[dexter]

Thanks Brian you have been a big help, is anyone aware of a diagram for the connections onto the control unit? I want to test down through here to see if the cables are ok but I am not certain what the pairs are. Thanks

[BrianH]

can't help you there, theres one thing i noticed when i did a search for this though, theres mention of the light being lit rather than flashing being down to a blown fuse. I'd have another test with vcds and see if you can still communicate with the controller first, if not then do a search on here for the number you get above and look into the fuses mentioned firstly (there may be a reason its blown of course which you will need to fix, but start with the easy bits first).