DTC P1109: BARO Sensor Circuit Out of Range High
NOTE:
Before you troubleshoot, record all freeze data and any on-board snapshot, and review the general troubleshooting information (see GENERAL TROUBLESHOOTING INFORMATION
).
- Turn the ignition switch to ON (II).
- Reset the ECM with the HDS.
- Start the engine.
- Check for Temporary DTCs or DTCs with the HDS.
Is DTC P1109 indicated?
YES -Go to step 5.
NO -Intermittent failure, the system is OK at this time. If any other Temporary DTCs or DTCs are indicated, go to the indicated DTC's troubleshooting.
- Update the ECM if it does not have the latest software (see ECM UPDATE ), or substitute a known-good ECM (see SUBSTITUTING THE ECM ).
- Check for Temporary DTCs or DTCs with the HDS.
Is DTC P1109 indicated?
YES -If the ECM was updated, substitute a known-good ECM (see SUBSTITUTING THE ECM ), then recheck. If the ECM was substituted, go to step 1.
NO -If the ECM was updated, troubleshooting is complete. If the ECM was substituted, replace the original ECM (see ECM REPLACEMENT ). If any other Temporary DTCs or DTCs are indicated, go to the indicated DTC's troubleshooting.