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AutoCodes - Generic - P1109

P1109 Code - BARO Sensor Circuit Out of Range High

- Code Popularity: 22,406 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 2/3
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What are the Possible Causes of the DTC P1109?

NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.
  • Engine Control Module (ECM) outdated or incorrect software
  • Faulty Engine Control Module (ECM)
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How to Fix the DTC P1109?

Review the 'Possible Causes' mentioned above and visually examine the corresponding wiring harness and connectors. Ensure to check for any damaged components and inspect the connector pins for signs of being broken, bent, pushed out, or corroded.

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What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P1109 code, it typically requires 1.0 hour of labor. The specific diagnosis time and labor rates at auto repair shops can differ based on factors such as the location, make and model of the vehicle, and even the engine type. It is common for most auto repair shops to charge between $75 and $150 per hour.

What are Code Possible Symptoms?

  • Engine Light ON (or Service Engine Soon Warning Light)
  • Engine rough idle
  • Engine hesitation

Code P1109 Description

The Barometric Pressure (BARO) sensor is built into the Engine Control Module (ECM) and monitors atmospheric pressure. The ECM estimates appropriate intake airflow from the Manifold Absolute Pressure (MAP) sensor output voltage and BARO sensor output voltage. If the BARO sensor output voltage is a specified value or more, the ECM detects a malfunction and a code is stored.

OBDII Code P1109 - BARO Sensor Circuit Out of Range High - AutoCodes.com
P1109 Code - BARO Sensor Circuit Out of Range High

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Code P1109 comments

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