Check for loose pins in your OBDII port or interference from aftermarket electronics (like dashcams) tapped into the same power circuit.
Ensure you have the legitimate RJ01228542 file downloaded from an authorized provider. 2. The Installation Steps eng motor home v115 rj01228542 new update install
You will need a specialized USB-to-OBDII cable or a dedicated diagnostic tablet. Check for loose pins in your OBDII port
Enhanced communication between the engine and the gearbox. eng motor home v115 rj01228542 new update install