DTC P0607: Control Module Performance: Procedure

CHECK DTC
1. Clear DTCs.
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 to ON.
6. Read the DTCs.
  OK
  
  P0607 is not present.
NG → See step 3

OK → See step 2
CHECK FOR INTERMITTENT PROBLEMS. Refer to CHECK FOR INTERMITTENT PROBLEMS
REPLACE ECM. Refer to REMOVAL