Rick's Free Auto Repair Advice

Posts Tagged: C0040

Impala C0035, C0040, ABS, TCS

Diagnose and fix Impala C0035, C0040, ABS, TCS GM has issued a service bulletin PIC5992A regarding a C0035, C0040, ABS TCS issue on the vehicles listed below. 2007 – 2013 Chevrolet Impala 2014 – 2016 Chevrolet Impala Limited 2007 – 2008 Pontiac Grand Prix 2007 – 2009 Buick Lacrosse Description of the ABS light on or TCS light on problem You may notice the ABS light on or TCS light when turning. GM has identified a possible wiring harness issue running to the wheel speed sensors. The sensor or wiring … Read More

C0040 ABS light on GM Saab

Fix code C0040 ABS light on GM Saab If you have a Coo4o or an ABS light on, read this TSB. GM has issued a technical service bulletin for Buick Rainier (05-07), Chevrolet TrailBlazer (05-08), GMC Envoy (05-08), and Saab 9-7X. The TSB #07-05-25-006 relates to a problem with the ABS system and results in a scan code C0040. GM advises you to inspect the right front wheel speed sensor for damage caused by rubbing against the A/C pulley. If you find damage, wire in a splice and then reroute … Read More


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