Inspection Procedure
- CHECK DTC
- Clear DTC (See DTC CHECK/CLEAR ).
- Turn the engine switch off.
- Disconnect the cable from the negative (-) battery terminal and wait for 1 minute.
- Connect the cable to the negative (-) battery terminal.
- Turn the engine switch on (IG).
- Check DTC.
OK: P0604 is not output.
NG: REPLACE ECM (See ECM )
OK: CHECK FOR INTERMITTENT PROBLEMS (See CHECK FOR INTERMITTENT PROBLEMS )