DTC Troubleshooting: P2229 (13-6)

DTC P2229:  BARO Sensor Circuit High Voltage

1.Turn the ignition switch ON (II).

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

Is about 4.76 V or higher indicated?


YES - Update the ECM if it does not have the latest software, or substitute a known-good ECM, then recheck. If the symptom/indication goes away with a known-good ECM, replace the original ECM.n


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