Trifecta lights with no speedo & MPG gauge

[upallnight]

Originally Posted by Purplecty

It could be the sensor as oem simenens VDO sensors are the only ones I would use...

https://www.fcpeuro.com/products/bmw...do-34526756380

I used the wheel sensor from O'Reilley and they work perfectly.

[Purplecty]

Originally Posted by upallnight

I used the wheel sensor from O'Reilley and they work perfectly.

Interesting! Coming from the e38 world thay uses the DSC57 as well, I had bad luck with aftermarket ABS sensors. Good to know...

[ahlem]

On various models I have owned, it was always a good idea to clean the crud off the pulse ring or pick up surface through the sensor hole with a popsicle stick and Emory cloth. I've noticed rust, grease, dirt and iron filings in there. Anything conductive can disrupt the signal.

[Clavurion]

Originally Posted by ahlem

On various models I have owned, it was always a good idea to clean the crud off the pulse ring or pick up surface through the sensor hole with a popsicle stick and Emory cloth. I've noticed rust, grease, dirt and iron filings in there. Anything conductive can disrupt the signal.

As it's on the rear seal of bearing I wouldn't use anything but brake cleaner and compressed air.

[TriX5]

Had the same symptoms with my ABS module and, before putting the engine back in the car, had mine out and sent it to a company in Florida for fixing. They can either fix yours (I did this) or send you one and you send yours back as a core replacement.

[Loperamide]

Originally Posted by upallnight

Anytime I had to replace the wheel sensor the plastic connector from the harness to the new sensor had to be replaced also. The wire had to be in the correct location on the new connector, you can't have them switch around. If you replaced the plastic connector did you put the wire back in the correct location? You had a 50-50 chance of getting it right.

I did NOT have to replace the connector.

[Loperamide]

Originally Posted by TriX5

Had the same symptoms with my ABS module and, before putting the engine back in the car, had mine out and sent it to a company in Florida for fixing. They can either fix yours (I did this) or send you one and you send yours back as a core replacement.

One small problem....I'm in the UK.

[Loperamide]

One thing I have noticed is, the trifecta come on when im at a stand still and not moving.

[Clavurion]

Originally Posted by Loperamide

One thing I have noticed is, the trifecta come on when im at a stand still and not moving.

Not a sure sign for anything but like I said earlier could point to problem on module internal wiring when the module warms up.

[Purplecty]

Swap the rear sensors side to side and see if you get a signal to rule them out...