Service ABS, Service Traction, service stability

2004 PONTIAC GRAND PRIX
80,000 MILES • 3.8L • 6 CYL • 2WD • AUTOMATIC
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1WOODMONGER
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My Camry took a dump, daughter has given me the car listed above. It takes a while for the key to work, and sometimes the light cluster come on, most of the time they don't small read out in the middle of dash above the gear shift , reads Service ABS, Service Traction, service stability.. I'm wondering what could cause all these things , would it be needing a new ignition lock ? Now I'm finding out that cars have some type of an Inverter attached to cluster someplace.. Radio is locked.. but the car is legal beagle. Help Please.
Apr 10, 2021 at 3:06 PM
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DANNY L
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Hello, I'm Danny.

What we ask you to do is perform a CAN scan to retrieve all code information from your car. A CAN scan will test all the systems on your car including the abs and traction control lights you've mentioned. Here is a tutorial showing what is involved for a CAN scan:

https://www.2carpros.com/articles/can-scan-controller-area-network-easy

After performing this procedure get back to us with all stored code information and then we can properly diagnose these issues with your car. Hope this helps and thanks for using 2CarPros.
Apr 10, 2021 at 3:38 PM
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1WOODMONGER
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Did a scan and no codes are found, but the read out when driving still says all the same stuff. oh, and sometimes the cluster lights up sometimes not..
Apr 13, 2021 at 10:33 AM
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JACOBANDNICKOLAS
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Hi,

I noticed we haven't heard from you for a couple of days. Have you made any progress? By any chance, have you checked the wheel speed sensors? You could have a sensor still working, but sending a bad signal.

Here is a link that shows how to check them:

https://www.2carpros.com/articles/abs-wheel-speed-sensor-test

Let us know.

Joe
Apr 15, 2021 at 8:37 PM
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DANNY L
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Hello again.

Are there any symptoms with driveability when driving the car or are just the dash lights on? Were the codes erased? If the codes were erased and there are still faults with the vehicle any code will show up again after car is driven about 25 miles. Let us know and we'll go from there since no codes where found. Hope this helps and thanks again for using 2CarPros.

Danny-
Apr 15, 2021 at 8:50 PM
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1WOODMONGER
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I swapped out the Radio Relay with the ignition relay.. they both had the same numbers and same schematic on the side, now the key turns and starts car every time, also all the dash lights come on every time now.. problem still remains with ABS, Traction control and brake light always on...
May 31, 2021 at 9:34 AM
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JACOBANDNICKOLAS
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Hi,

The most common cause of an ABS/traction control light being on is the result of a failed wheel speed sensor.

What I need you to do is check the sensors. At each wheel, there is a speed sensor on this vehicle. See the pic below. To check a sensor at home requires a multimeter and a safe way to lift one wheel from the ground at a time. see pic 1 below

Here is a link that explains how it's done:

https://www.2carpros.com/articles/abs-wheel-speed-sensor-test

As Danny mentioned, in most cases a bad sensor will cause the light to come on, both the ABS and the traction control. So this is a good place to check.

Also, low brake fluid will set the lights as well, so make sure you confirm the master cylinder is full.

Let us know what you find.

Joe

See pic below.
Jun 1, 2021 at 6:38 PM
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DANNY L
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Hello again.

After testing wheel speed sensors as Joe mentioned here is a tutorial showing how to replace wheel speed sensors:

https://www.2carpros.com/articles/how-to-replace-an-abs-wheel-speed-sensor

I've attached picture steps below on how to replace the front and rear wheel speed sensors on your car if they are determined to be at fault. Hope this helps and thanks again for using 2CarPros.

Danny-
Jun 2, 2021 at 5:51 AM