Gulp.bwhite Posted October 20, 2017 Share Posted October 20, 2017 Looking for some guidance. I have a Mack GU813 with a ABS and electrical malfunction light on. I have a standard Bendix ECU. I have tried to swap it with a good one from another truck, and tried swapping the instrument cluster. Neither fixed the issue. The code is for ABS warning lamp circuit fault. If anybody has any troubleshooting ideas please let me know. Or if you have seen this code before, please let me know how you found the problem and what you did to fix it. Quote Link to comment https://www.bigmacktrucks.com/topic/51436-abs/ Share on other sites More sharing options...
Mackpro Posted October 24, 2017 Share Posted October 24, 2017 Call 1-800 AIRBRAKE . The Bendix tech guys are quite helpful sometimes, plus you dont have to be a dealer to call. Quote Link to comment https://www.bigmacktrucks.com/topic/51436-abs/#findComment-383360 Share on other sites More sharing options...
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