Truck Fault Code Diagnostics and Repair

As electronic systems become increasingly complex, paying close attention to truck fault codes is essential. Modern trucks are equipped with numerous systems that manage the engine, transmission, aftertreatment and all related accessories found in the cab.

When one of these systems detects an anomaly, an out-of-range voltage or abnormal activity, it's essential to have a professional run a diagnostic. Even if the truck is still running and performing normally, the fault it flags can point to a more serious — and potentially costlier — problem. Worse still, if left unresolved, the system may put the truck into 'derate' mode or limit it to 8 km/h to protect its vital systems.

At CM Montréal, we not only have all the equipment needed to diagnose and repair fault codes across every system on your truck, but our experienced technicians can also pinpoint the root cause and recommend the right maintenance to keep those fault codes from coming back.