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 40kPa (300 mmHg, 11.8 in.Hg), or 1.58 V or less indicated?

YES - Go to 3.

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

3.Substitute a known-good ECM.

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

Are any Temporary DTCs or DTCs indicated?

YES - If DTC P2228 indicated, check for poor connections at the ECM, then go to 1. If any other Temporary DTCs or DTCs are indicated, go to the indicated DTC troubleshooting.

NO - Replace the original ECM.n