P0AEE

DTC P0AEE (109): MCM Internal Circuit Malfunction
1. Turn the ignition switch ON (II).
2. Note the value of MPI TEMPERATURE in the DATA LIST with the HDS.
3. Start and stop the engine five times.
4. Check the MPI TEMPERATURE in the DATA LIST with the HDS.
Did the MPI TEMPERATURE increase by 0.9°F (0.5°C) or more?
YES - Intermittent failure, the system is OK at this time.
NO - Go to step 5.

5. Update the MCM if it does not have the latest software, or substitute a known-good MCM.
6. Check for IMA system Temporary DTCs or DTCs with the HDS.
Is DTC U0AEE (109) indicated?
YES - Check for poor connections or loose terminals at the MCM. If the MCM was updated, substitute a known-good MCM, then recheck. If the MCM was substituted, go to step 1.
NO - If the MCM was updated, troubleshooting is complete. If the MCM was substituted, replace the original MCM. If any other Temporary DTCs or DTCs are indicated, go to the indicated DTC's troubleshooting.