With AC on anti lock light comes on and car loses power

[Jimc]

First post, I have a 92 AWD turbo 5 speed with no mods. Drives great until I turn the AC on. When the AC is turned on, I get a glowing/blinking Anti Lock light and car begins to lose power, spit and sputter. When I turn the AC off car resumes to running good. Is this system connected in anyway? I am suspecting a bad ECM at this point. Only because this seems to be where everything would come together in the wiring?

Any help would be appreciated.

JC

 

[GRAVEDIGGER]

First off, I would check the system voltage with the engine running. It sounds to me like you may have a bad alternator. With the engine running, battery voltage at the battery should be 13.5-14.8 volts. If you have 12.xx volts that's not enough. Good luck!

 

[Jimc]

Sorry for not posting a reply but you were spot on. Bad alternator. Thanks