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[tigers_gonads]

Pm incoming

[terry paget]

I agree with Elite Dave, one hour should do the job. However, it is tricky, and the way Haynes recommends, or the OOF guide, are both difficult and time consuming. A small garage doing it from a Haynes manual for the first time, might well take eight hours if he was unlucky.

I took an hour last change, having done one a few days earlier. Piece of cake (on 2 litre).

Battery out, power steering fluid reservoir out, remove exhaust gas recirculation pipe, unclip ABS hydraulic pipes from bulkhead; loosen 2 ABS unit heat shield  torx screws, remove engine side ABS mounting nut and pull heat shield off screw, slacken wing side mounting nut. Slide ABS ECU connector violet clamp out towards the wing, remove connector.

Grasp ABS assembly firmly, pick it up and tilt it ECU end upwards until you can see the 6 torx screws that attach the ECU to pump block. Prop it there on the heat shield or block of wood. Unplug cable from ECU, remove 6 torx screws, pull off ECU. Half an hour, without assistance.

 Have cup of coffee, chat to wife.

Put on new or repaired ECU, reassemble. Pray fault has gone away.

[terry paget]

Hi Malcy_p of Suffolk. Good to meet you again in cyberspace.

We must have changed a few ABS ECUs over the years. I have changed 6 or more. I thank you for the technique, which you taught me originally, and which I published above without acknowledgement. I hereby attribute it to you, tested and often used by me.

[Andy H]

Hi all.
Car was in today for ABS ECU change. I have a 2.5v6 manual and purchased a 2.6 abs unit, knowing that it may need to go on tech2. The mechanic decided that it would be better just to change the whole unit as opposed to just the ecu. He phoned me to say there was a problem, so I went to see.
The symptoms now are:
TC light remains on. ABS light goes out.
Engine Management light on.
Rev counter flicks between 5-7000rpm
Code says no rpm signal
Car does not start.

A lot more and different symptoms to standard ABS ECU failure.

Has something been unplugged somewhere? He did stretch the main ECU out of the way.
Does the ABS unit have differing setup if manual or auto. Extra rpm signal maybe?

Hope this is enough info for someone to diagnose. If anymore info needed just ask.
 

My first thought is that 2.5 implies pre-facelift therefore 3 channel ABS and 2.6 implies facelift therefore 4 channel ABS & incompatible with original ECU and probably incompatible with engine ECU as well.

It isn't that simple of course but I would assume that they were incompatible until part numbers & chassis numbers had been checked

[megaomega123]

Hi all.
Car was in today for ABS ECU change. I have a 2.5v6 manual and purchased a 2.6 abs unit, knowing that it may need to go on tech2. The mechanic decided that it would be better just to change the whole unit as opposed to just the ecu. He phoned me to say there was a problem, so I went to see.
The symptoms now are:
TC light remains on. ABS light goes out.
Engine Management light on.
Rev counter flicks between 5-7000rpm
Code says no rpm signal
Car does not start.

A lot more and different symptoms to standard ABS ECU failure.

Has something been unplugged somewhere? He did stretch the main ECU out of the way.
Does the ABS unit have differing setup if manual or auto. Extra rpm signal maybe?

Hope this is enough info for someone to diagnose. If anymore info needed just ask.
 

My first thought is that 2.5 implies pre-facelift therefore 3 channel ABS and 2.6 implies facelift therefore 4 channel ABS & incompatible with original ECU and probably incompatible with engine ECU as well.

It isn't that simple of course but I would assume that they were incompatible until part numbers & chassis numbers had been checked

Both are facelift models. Can only think the 2.6 was an auto. Just need to source a good 2.5 module then probably attack it myself and try to recuperate some of my loss.