Rabs abs speed sensor

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May 18, 2009 | 09:38 PM

gthbryce

Thread Starter

Tuned

Joined: Jan 2009

Posts: 276

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From: Carmichael, CA

Rabs abs speed sensor

Rabs abs speed sensor... I replaced the abs sensor in my axle today thinking it would fix my amber rear antilock brake light from staying lit. After starting it up turning it off after a couple minutes and turning it back on as soon as it cranked over the light goes off for about a second then comes back on and stays lit. What else could be triggering it to stay on?

May 19, 2009 | 03:37 AM

ArdWrknTrk

pedant

Joined: Jan 2008

Posts: 23,576

Likes: 40

From: EXTREME southwest CT

I have collected some posts trying to solve this problem.
Can't get them now, but given a chance when I get back I'll search my subscribed threads for you.

You might need to bleed the RABS valve inside the frame rail beneath the driver.

There is a wire you can ground up above the footwell for a diagnostic self-test. (IIRC it's black and orange)
But I got no flashes, soooo finally gave up and have been staring at that stupid light for years.

May 19, 2009 | 04:45 AM

EPNCSU2006

Lead Driver

Joined: Nov 2002

Posts: 9,557

Likes: 44

From: Concord, NC

Check the wiring at the master cylinder. I had a nagging RABS light that went away when I replaced the master cylinder. Apparently there was just a bad connection at the float switch and taking the wiring on and off made enough contact to complete the circuit. I could never get the RABS light to flash any codes when grounding the black/orange wire either.