DTC Troubleshooting

DTC P2228: BARO Sensor Circuit Low Voltage

NOTE: Before you troubleshoot, record all freeze data and any on-board snapshot, and review the general troubleshooting information.

1. Turn the ignition switch ON (II).
2. Check the BARO SENSOR in the DATA LIST with the HDS.

Is about 53 kPa (15.6 in.Hg, 397 mmHg), or 1.58 V or less indicated?

YES - Go to step 3.

NO - Intermittent failure, the system is OK at this time.

3. Update the PCM if it does not have the latest software, or substitute a known good PCM.
4. Check for Temporary DTCs or DTCs with the HDS.

Is DTC P2228 indicated?

YES - Check for poor connections or loose terminals at the PCM. If the PCM was updated, substitute a known good PCM, then recheck. If the PCM was substituted in step 3, Go to step 1.

NO - If the PCM was updated, troubleshooting is complete. If any other Temporary DTCs or DTCs are indicated, Go to the indicated DTC's troubleshooting.