P1109 - BARO Sensor Circuit Out of Range High

Repair Importance Level: 3/3
Repair Difficulty Level: 2/3  What does this mean?

P1109 Possible Causes

  • Engine Control Module (ECM) outdated or incorrect software
  • Faulty Engine Control Module (ECM)

First diagnose P1109 code

    Check the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded terminals.

Cost of diagnosing the P1109 code

    Labor: 1.0

    The cost of diagnosing the P1109 code is 1.0 hour of labor. The auto repair labor rates vary widely across the country, and even within the same city. Most auto repairs shops charge between $75 and $150 per hour.

P1109 Possible Symptoms

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

P1109 Meaning

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 - Engine-Codes.com

P1109 More Information

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P1109 Information for specific makes

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