Inspection Procedure

WARNING: This page is about a different car, the 2007 Lexus SC 430. However, it is still accessible from the selected car via links, so may be relevant.

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 cable to the negative battery terminal.
5. Turn the ignition switch ON.
6. Check DTC.
  OK:
  
  P0607 is not present.
NG: REPLACE ECM

OK: INTERMITTENT PROBLEMS