General Use: GM CASE Relearn

In certain modern GM vehicles, when swapping ECUs or installing a new ECU (for example, after a trade-in tune) or in case of certain DTCs (i.e. DTC P1336), you need to be able to perform a Crank Angle Sensor Error (CASE) Relearn to sync up the system.  DashBoss makes that painless with a step by step wizard.