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1998 Pontiac Grand Prix ABS and low trac light on as well a

Tiny
MR. BULL
  • MEMBER
  • 1998 PONTIAC GRAND PRIX
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 182,000 MILES
About a year ago my abs light inexplicably came on along with the low trac light. It used to go off after a while but now it's on all the time. Recently I've noticed my wheel (I think) shakes and it sort of pops when I stop. I replaced the brake pads a couple of months ago and had a mechanic check the codes for the abs. He couldn't figure out specifically what's wrong. What should I do next Please Help!
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Wednesday, April 21st, 2010 AT 1:20 PM

3 Replies

Tiny
MMPRINCE4000
  • MECHANIC
  • 8,548 POSTS
ABS generates a "C" chassis code, not readable by many low end scanners.

Did he find a "C" code?
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Saturday, April 24th, 2010 AT 8:33 AM
Tiny
MR. BULL
  • MEMBER
  • 2 POSTS
I believe it was a "B" code but he couldn't specify where it was coming from
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Monday, April 26th, 2010 AT 8:04 AM
Tiny
MMPRINCE4000
  • MECHANIC
  • 8,548 POSTS
There are 4 different codes generated by OBDII.

"P" are powertrain codes.
"C" are chassis codes.
"B" are body codes.
"U" are communication codes.

The "B" code could be many things, ask him what the code was.
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Tuesday, April 27th, 2010 AT 9:07 AM

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