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DTC P0602: ECM/PCM Programming Error (2005-2006 models) Acura RSX I facelift

Testing & Diagnostics

Note. This DTC is indicated when the ECM/PCM update is not completed. Do not turn the ignition switch OFF while updating the ECM/PCM. If you turn the ignition switch OFF before completion, the ECM/PCM will be damaged.

Update the ECM/PCM (see «HOW TO UPDATE THE ECM/PCM»(ref-218783-S21903648732006021000000) ).
Check for Temporary DTCs or DTCs with the HDS. Is DTC P0602 indicated? YES - Replace the original ECM/PCM (see «ECM/PCM REPLACEMENT»(ref-218785-S00586955502006021000000) ). NO - Troubleshooting is complete.