( TL19E3AK72100091109FAAT00 )

DTC Troubleshooting: P1109 (13)

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.

1. Reset the ECM/PCM with the HDS.

1. Start the engine.

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

Is DTC P1109 indicated?

YES | - | Go to Step 4 .
NO | - | Intermittent failure, the system is OK at this time.■

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

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

Is DTC P1109 indicated?

YES | - | If the ECM/PCM was updated, substitute a known-good ECM/PCM, then recheck. If the ECM/PCM was substituted, go to Step 1 .
NO | - | If the ECM/PCM was updated, troubleshooting is complete. If the ECM/PCM was substituted, replace the original ECM/PCM. If any other Temporary DTCs or DTCs are indicated, go to the indicated DTC's troubleshooting.■