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Symptom: P1602-PCM NOT PROGRAMMED When Monitored and Set Condition: P1602-PCM NOT PROGRAMMED When Monitored: Ignition on. Set Condition: The PCM has not been programmed. POSSIBLE CAUSES PCM NOT PROGRAMMED VERIFY PCM PROGRAMMING PCM TEST ACTION APPLICABILITY 1 Ignition on, engine not running. t, erase DTCs. With the DRBIII t program the PCM. Start the engine. t, read DTCs. Does the DTC reset? All Yes → Go To 2 No → The PCM has been successfully programmed. Test is complete. Perform POWERTRAIN VERIFICATION TEST VER - 1 - NGC. 2 NOTE: The ignition switch must be left in the off position for a minimum of t, read DTCs. Does the DTC reset? All Yes → Replace and program the Powertrain Control Module in accor- dance with the Service Information. No → The PCM has been successfully programmed into the PCM. Test is complete. 451 DRIVEABILITY - NGC |