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Inspection Procedure

CHECK DTC
1. Clear DTC.
2. Turn the ignition switch off.
3. Disconnect the cable from the negative battery terminal and wait for 1 minute.
4. Connect the negative battery terminal.
5. Turn the ignition switch to ON.
6. Check DTC.
  OK:
  
  P0604 is not present.
  
  NG: REPLACE ECM (See ECM )
  
  OK: CHECK FOR INTERMITTENT PROBLEMS (See CHECK FOR INTERMITTENT PROBLEMS )