ABS & Tracs Off Warning Lights

  • Thread starter Thread starter sparky
  • Start date Start date
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sparky

I've got a '96 850 GLT Wagon and the ABS and Trac's Off warning lights are
coming on occasionally, usually together, sometimes not.

Anybody with ideas what's going on?

reply to email or group

thanks

aloha
GaryK
 
Phil Lefebvre said:
Funny, I have the same problem just happen to me. Most scary, when
trying to stop on dry pavement the ABS kicked in and didn't work very
well. I came close to hitting the car in front. I've got a service
appointment for Monday.
Click to expand...

The TRACS works alongside the ABS sensors as the 850 only brakes the
wheel when it detects wheelspin. Unfortunately there appears to be a
generic fault with the ABS control units that may mean you need a new
control unit-very pricey.
If you're lucky, it might just be a wheel sensor.
Get the error codes read, and get the garage to 'guarantee' that if
they replace the sensor, that this will cure the problem....quite
often the error code suggests a wheel sensor but in fact it's the
control unit at fault.
If the ABS warning light is on, then I believe ABS braking would be
disabled, so this could be why it didn't work to well....it may not
have been working at all!
 
Conrad said:
The TRACS works alongside the ABS sensors as the 850 only brakes the
wheel when it detects wheelspin. Unfortunately there appears to be a
generic fault with the ABS control units that may mean you need a new
control unit-very pricey.
If you're lucky, it might just be a wheel sensor.
Get the error codes read, and get the garage to 'guarantee' that if
they replace the sensor, that this will cure the problem....quite
often the error code suggests a wheel sensor but in fact it's the
control unit at fault.
If the ABS warning light is on, then I believe ABS braking would be
disabled, so this could be why it didn't work to well....it may not
have been working at all!
Click to expand...

All 96-98 850 and x70 share the same control unit, and problem. You'll
probably get a right rear wheel sensor code, but it will be a control
unit fault. The rear sensors come as a unit (left and right together)
and changing them is a long (and therefore expensive) process. If you
get a right rear sensor code, you've been warned....
 
The TRACS works alongside the ABS sensors as the 850 only brakes the
wheel when it detects wheelspin. Unfortunately there appears to be a
generic fault with the ABS control units that may mean you need a new
control unit-very pricey.
If you're lucky, it might just be a wheel sensor.
Click to expand...

Wasn't lucky; it was the control unit. It was $600 installed. Ouch. Then
again, I was lucky that I didn't suffer brake failure prior.
 
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