P0AF0

DTC P0AF0 (111): MCM Internal Temperature Sensor Circuit High Voltage
1. Turn the ignition switch ON (II).
2. Check the MPI VOLTAGE (MPI TEMPERATURE) in the DATA LIST with the HDS.
Is there more than 4.64 V (338°F (170°C))?
YES - Intermittent failure, the system is OK at this time.
NO - Go to step 3.

3. Update the MCM if it does not have the latest software, or substitute a known-good MCM.
4. Check for IMA system Temporary DTCs or DTCs with the HDS.
Is DTC U0AF0 (111) 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.