DTC P0633: Skim Key Not Programmed In Pcm: Testing
- Ignition on, engine not running. With the DRBIII® scan tool, erase DTCs. Using the DRBIII® scan tool, program the SKIM KEY information into the PCM. Start the engine. If the engine will not start, crank the engine over for 15 seconds. Crank at least 2 times with the ignition switch returning to the off position each time. Allow the engine to reach normal operating temperature. With the DRBIII® scan tool, read DTCs. Does the DTC reset? If yes, replace and program the PCM. See PROGRAMMING . If no, the SKIM KEY information has been successfully programmed into the PCM. Test is complete.