DTC P1602: Pcm Not Programmed: Testing

Turn ignition on, engine not running. With the DRBIII®, erase DTCs. Using the DRBIII®, program the PCM. See PROGRAMMING . Start the engine. Allow the engine to reach normal operating temperature. With the DRBIII®, read DTCs. Does the DTC reset? If yes, replace PCM. Program the new PCM. If no, the PCM has been successfully programmed. Test is complete.