P1109 - BARO Sensor Circuit Out of Range High
Repair Importance Level:
Repair Difficulty Level:
P1109 Possible Causes
- Engine Control Module (ECM) outdated or incorrect software
- Faulty Engine Control Module (ECM)
First diagnose P1109 code
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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.
P1109 More Information
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P1109 Information for specific makes
- P1109 ACURA BARO Sensor Circuit Out of Range High
- P1109 AUDI HO2S22 Sensor Circuit Voltage Too Low Air Leak
- P1109 BUICK Secondary Port Throttle System
- P1109 CADILLAC Secondary Port Throttle System
- P1109 CHEVROLET Secondary Port Throttle System
- P1109 FORD IAT Sensor 2 Intermittent Condition
- P1109 GMC Secondary Port Throttle System
- P1109 HONDA BARO Sensor Circuit Out of Range High
- P1109 HYUNDAI Fuel Pump - Abnormal
- P1109 VOLKSWAGEN HO2S22 Sensor Circuit Voltage Too Low Air Leak