CID 1242 CAT Fault Code

Cause :

If this error lights up and service icons appear on the dashboard, then to remove it, you need to check the operation of the electric motor of the valve lift adjustment mechanism. To reset the code, you must determine the cause of the open loop.Engine started, engine running, and the PCM detected a high voltage present at the PCM for 3 minutes after the engine started. The Starter Relay Control Circuit High Voltage test monitors the voltage signal that is sent from the ignition switch.