Commercial Vehicles

      How It Works

      Ship your defective CPC4 module to our repair service center
      We inspect and diagnose your CPC4 to confirm the fault.
      We perform the appropriate repairs
      Thorough bench testing and quality checks are performed
      The module is shipped back and tracking provided

         What We Fix

      Common power train controllers CPC
      Engine control modules ECM

      Vehicles We Work On

      Western Star
      Thomas Built Buses

      Common Symptoms We Service

       Truck does not start
       No throttle/Intermittent throttle
       No CPC communication
       CPC4 reads as a different module - CPC2
       Check engine light due to CPC
       CPC failure with faulty codes - SPN 609 FMI 12
       DEF engine light blinks red in full tank
       Check Engine Light
       ABS Light
       Dashboard Cluster loses communication
       Not counting mileage correctly
       Other issues, please contact us first