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Old 03-31-2017, 06:08 PM   #1
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abs inop

Several months ago my abs light would come on intermittenly until it came on permanently. Had my mechanic tech scope it and it indicated right front. Didn't have any problems so forgot about it but spring is here so installed a new hub , aledgly, but it didn't solve the problem. Pulls a 1233 code and can be deleted from history but still shows as an error. Does anyone have any ohm readings and/or a methodology to check to see if in fact the new hub is ok or how to determine if the problem is in the harness or the pump assembly. I've checked 3rd brake light and plan to replace the relay. Is there anything special about the abs relay. Looks similiar to a standard relay and isn't expensive. Any help or direction to a source would be appreciated.

Nick Landin - 97 Camaro Convertible
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Old 03-31-2017, 11:15 PM   #2
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That code tells you there is an open circuit between the controller module and the wheel sensor; has to be sensor or cable to it. These problems are usually cause by a break in the cable rather than in the sensor itself. unplug the cable where it meets the chassis. I don't remember the normal resistance but it's probably under 1000 Ohms. Just monitor it while wiggling the cable. If it's defective it will go open circuit (infinity Ohms)

The ABS relay would affect all functions.
1998 Trans Am - LS1 - 4spd Auto - strictly stock

Last edited by GaryDoug; 03-31-2017 at 11:29 PM.
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