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LS4 Performance Grand Prix GXP | Monte Carlo SS | Impala SS | LaCrosse Super

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Old 11-11-2011, 10:54 AM   #1
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Default RF Wheel Speed Sensor Code - NOT BEARING!

So every once in a while my 08 GXP would have the ABS/TRAC/STABIL off codes thrown in the car, I put my Solus scanner on it and it came back with a 'RF Wheel Speed Sensor Malfunction' code.

So naturally I just replaced the hub assembly with and OEM replacement thinking it would solve the issue. Wrong! I cleared the the codes and when I went to back out of our shop it came back on. WFT? I cleared the codes again and went for a drive, it didn't come back on for quite some time, but eventually it did.

It is very intermitent, and usually happens when I just put the car in reverse and back up slowly. It doesn't happen when going forward or over hard bumps or anything.

I am thinking it may be the harness but those stupid things are 75 dollars my cost so I want to be sure before I put one in there.

Has anybody else dealt this issue? I am certain it is throwing the RF Wheel Speed Sensor code so that rules out all the other sensors that could disable ABS/TRAC/STABIL.

Thanks guys.
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Old 11-11-2011, 12:56 PM   #2
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i had that happen i needed a battery
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Old 11-11-2011, 02:47 PM   #3
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i had that happen i needed a battery
No kidding? LOL. Why would that have anything to do with it?
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Old 11-11-2011, 02:51 PM   #4
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No kidding? LOL. Why would that have anything to do with it?
Those sensors are extremely voltage sensitive, that's why.
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Old 11-11-2011, 04:29 PM   #5
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Those sensors are extremely voltage sensitive, that's why.
Hmmmm thats interesting. I will throw a new battery in it from our shop and see if that corrects the issue. Is there anything on the DIC that I could watch for to see if the voltage drops?
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Old 11-11-2011, 10:33 PM   #6
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uh more than likely you wont have a battery on hand for the car. i went with a red top for more power GM stuck way to small of a battery for a v8
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Old 11-12-2011, 01:23 PM   #7
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I don't know if this matters or not, but last night the ABS/TRAC/STABIL lights came on again, this time I was watching the DIC voltage and it was at 14.26 volts when it happened accelerating from a stop and turning slightly right.
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Old 11-13-2011, 10:32 PM   #8
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i wish i woulda payed attention more to what the voltage showed when it acted up. but thats exactly what mine was doing and new battery fixed mine and others had same results
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Old 11-21-2011, 02:25 AM   #9
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I was the harness for the right side, spliced a new one in and the problem is gone.
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Old 11-21-2011, 01:40 PM   #10
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i know that is very common on older gm's!
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Old 11-22-2011, 12:58 AM   #11
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i know that is very common on older gm's!
Ha ha, but my car is an 08 GXP, unless that is considered an old GM already.
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Old 11-22-2011, 01:30 AM   #12
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been there, the dealer replaced one of my hub bearings and just went along and replaced all the speed sensors. the bearing would have gone out sometime anyway, replace the speed sensors and you will be perfectly fine
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Old 11-22-2011, 09:10 PM   #13
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been there, the dealer replaced one of my hub bearings and just went along and replaced all the speed sensors. the bearing would have gone out sometime anyway, replace the speed sensors and you will be perfectly fine
um slightly confused i believe the hub bearing has the speed/ abs/ tpms (older non stem sensor) built into it.
did you mean they replaced the sensor harness?
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Old 11-23-2011, 01:05 PM   #14
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yes i ment the harness
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Old 02-24-2012, 05:24 PM   #15
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FYI, replaced the harness today, it has not thrown a code since the install so I am pretty sure that is what was the problem was.
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Old 05-08-2012, 04:16 PM   #16
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Does anybody have a P/N for the sensor harness? mines doing this exact same thing. thanks
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Old 05-08-2012, 04:43 PM   #17
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You need the right front wheel speed harness
Gm sell them te harness breaks down in the conduit where the harness flexes around he lower control arm area. Around 50 bucks takes less than a hour to install. Would recc you doing both side as the other side will shortly follow
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Old 05-08-2012, 04:43 PM
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2007, bearing, bearings, car, code, gmc, hub, nissan, put, rf, sensor, speed, wheel, wireless, wss


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