DTC P0AA7: Motor Control Module (MCM) Internal Circuit Malfunction
NOTE:
- Before you troubleshoot, record all freeze data and any on-board snapshot, and review the general troubleshooting information (see GENERAL TROUBLESHOOTING INFORMATION ).
- If the DTC cannot be cleared, do the troubleshooting for DTC U1204.
- Turn the ignition switch to ON (II).
- Clear the DTC with the HDS (see DTC CLEAR ).
- Monitor the OBD STATUS for DTC P0AA7 in the DTCs MENU with the HDS.
Does the HDS indicate FAILED?
YES -Go to step 4.
NO -If the HDS indicates PASSED, intermittent failure, the system is OK at this time. If the HDS indicates NOT COMPLETED, go to step 1.
- Update the MCM if it does not have the latest software (see MOTOR CONTROL MODULE (MCM) UPDATE ), or substitute a known-good MCM (see SUBSTITUTING THE MCM ).
- Turn the ignition switch to ON (II).
- Check for Pending or Confirmed DTCs with the HDS.
Is DTC P0AA7 indicated?
YES -If the MCM was updated, substitute a known-good MCM (see SUBSTITUTING THE MCM ), and recheck. If the MCM was substituted, go to step 1.
NO -Go to step 7.
- Monitor the OBD STATUS for DTC P0AA7 in the DTCs MENU with the HDS.
Does the HDS indicate PASSED?
YES -If the MCM was updated, troubleshooting is complete. If the MCM was substituted, replace the original MCM (see MOTOR CONTROL MODULE (MCM) REMOVAL/INSTALLATION ). If any other Pending or Confirmed DTCs were indicated in step 6, go to the indicated DTC'S TROUBLESHOOTING .
NO -
- If the HDS indicates FAILED: If the MCM was updated, substitute a known-good MCM (see SUBSTITUTING THE MCM ), and recheck. If the MCM was substituted, go to step 1.
- If the HDS indicates NOT COMPLETED: Keep the ignition switch ON (II) until a result comes on.