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DTC P1622: EEPROM Error: Troubleshooting

WARNING: This page is about a different car, the 2007 Suzuki Grand Vitara and 2006 Suzuki Grand Vitara. However, it is still accessible from the selected car via links, so may be relevant.
  1. Clear DTC(s) referring to DIAGNOSTIC TROUBLE CODE (DTC) CLEARANCE .
  2. Turn the ignition switch to OFF position.
  3. Check if DTC P1622 is still detected referring to DIAGNOSTIC TROUBLE CODE (DTC) CHECK . If still detected, go to the next step. If not, the troubleshooting is completed.
  4. Replace ECM with new one referring to ENGINE CONTROL MODULE (ECM) REMOVAL AND INSTALLATION .
  5. Perform PROCEDURE AFTER ECM REPLACEMENT .
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