DTC Troubleshooting: P2228 (13)

DTC P2228:  BARO Sensor Circuit Low Voltage

1.Turn the ignition switch ON (II).

2.Check the BARO SENSOR in the DATA LIST with the HDS.

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


YES - Go to 3.


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


3.Update the ECM/PCM if it does not have the latest software, or substitute a known-good ECM/PCM.

4.Check for Temporary DTCs or DTCs with the HDS.

Are any Temporary DTCs or DTCs indicated?


YES - If DTC P2228 is indicated, check for poor connections or loose terminals at the ECM/PCM, then go to 1. If any other Temporary DTCs or DTCs are indicated, go to the indicated DTC's troubleshooting.


NO - If the ECM/PCM was updated, troubleshooting is complete. If the ECM/PCM was substituted, replace the original ECM/PCM.n