Mazda Repair Questions? Ask Mechanics for Answers ASAP
Both the Trac and the ABS system use many of the same sensors to do their jobs correctly. Unfortunately, there are literally dozens of parts sensors that are shared, to to say "it's this..." would be impossible as this time. However, if the problem started just after front brake pad replacement, there's a strong chance that the problem lies in the front Wheel Speed Sensors (aka ABS Sensors) and/or one of the sensors was damaged during the brake job. The sensors and the wire harnesses to them are extremely touchy and can easily be damaged. At this point, we'll need the Diagnostic Trouble Codes to point us in the right direction of which sensor has the problem. SOME local parts stores, like AutoZone will have the correct scan-tool to read these codes. If you can find one that does, they will do so for Free (except in California). If you cannot find a local store to read the codes, a shop will be needed. Once we have those codes we can more accurately and efficiently determine the root of the problem and make the correct repair. In the meantime, you can give a visual inspection to the Wheel Speed Sensors looking for any signs of damage or and loose, broken, damaged or pulled/stretched wires. If there are no visual problems, then again, we'll definitely need those trouble codes to continue any further. If my answer has helped you, please help me by leaving a rating or accepting my answer so I may be credited. Rating or accepting my answer does not cost you extra. It allows me to be credited for my work. Please rate or accept. You can ask follow-up questions after you rate or accept.