Question about 1998 Cadillac Catera
There should be a vehicle speed sensor that is tied into your abs and tcs systems. I would recommend getting this changed. Also have your wheel bearings checked.
Posted on Dec 29, 2013
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Posted on Jan 02, 2017
Hi, in ure case the abs ecu is obviously a main ecu. it sounds like you have a can communication problem where your system detects hi speed can malfunction, or interferance, measure your end of line resistance=120ohms and network nominal value should be 60ohms voltages between can hi and low should ad up to 5v , or to ground eg. can hi=2.7v then can low should measure 2.3v. if either one of these measurements dont add up you know which cercuit is at fault.
It might even be a vehicle speed /wheelspeed sensor contaminated or damaged component causing system shut down.
Posted on Jul 22, 2008
It's your ETCBM ( Electronic Traction Control Brake Module ). Had the same problem . This will cause your speedometer , ABS brakes and check engine light to come on.You'll even notice your stering is a little stif. I had my mechanic remove it and sent it out to Module Masters for rebuild ( 5 year warranty ) Works like a charm now. Those guys are really great .Cost me with freight $160 plus mechanic to R & R it.
I found this info online . Most mechanics will say it is a Speed sensor, but after many hours and going that route you'll see what I mean.
PS: You can still drive the car ( carefully ) while you wait for the rebuilt unit to be returned.
Posted on May 15, 2009
You need to replace the traction control module located on the ABS pump. There are places in the US where they will rebuild it for you with warranty for about $150.
Its tricky to get off (you need to remove the rad hose between the battery and the pump to get to it, but don't disconnect the ABS module, just the TC module mounted at end of the ABS unit (has a bunch of brake lines coming out if it).
The power steering is variable assist, relative to the speed of the vehicle, so if the speedo doesn't work, then the PS won't and you should have TC and ABS lights on. The electrical connectors to the module are tricky to remove. don't force them. One connector has a sliding lock bar.
Posted on Jul 25, 2010
Tips for a great answer:
be loose speedo wiring connectors under instrument panel or its issue with
speed sensor on transmission.
suggest you to go through help links mentioned below with appropriate solutions
to confirm the problem :------
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