Diesel Data: Automotive Repair

P2229

DTC P2229: BARO Sensor Circuit High Voltage

NOTE: Information marked with a double asterisk (**) applies to 2004-2005 models.

1. Reset the ECM with the HDS.
2. Turn the ignition switch ON (II).
3. Check for Temporary DTCs or DTCs with the HDS.

Is DTC (P2228)** or (P2229)** 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.

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