Skip the auto shop - Our mechanics make house calls
  1. Home
  2. Articles
  3. Diagnostic Trouble Code (DTC): P1107 - Barometric Pressure Sensor Circuit Low Voltage

Diagnostic Trouble Code (DTC): P1107 - Barometric Pressure Sensor Circuit Low Voltage

Check Engine Light

P1107 code definition

The P1107 code is a manufacturer-specific powertrain code related to fuel and air metering. In this case, it means that the engine control module (ECM) has detected a low voltage signal from the barometric pressure sensor.

Codes related to the P1107 include:

What the P1107 code means

A code P1107 will be stored when the ECM receives a low voltage signal from the Barometric Pressure (BARO) sensor, which is built into the ECM and is used to monitor atmospheric pressure.

Manufacturers each may have different details and diagnosis/repair information depending on the affected make and model. Some automakers that have a manufacturer specific P1107 code include Acura, Audi, Buick, Cadillac, Chevrolet, Chrysler, Dodge, Ford, GMC, Honda, Hyundai, Isuzu, Jaguar, Jeep, Kia, Lincoln, Mercury, Subaru, Suzuki, and Volkswagen.

What causes the P1107 code?

Several problems may cause a P1107 code including:

What are the symptoms of the P1107 code?

Symptoms of a P1107 code may include:

  • Check engine or warning light may illuminate
  • Vehicle may idle roughly
  • Engine may hesitate
  • Decrease in fuel economy

How does a mechanic diagnose the P1107 code?

A mechanic may use several methods to diagnose a P1107 trouble code, including:

  • Utilize an OBD-II scanner to check for a stored P1107 trouble code
  • Visually inspect electrical wiring and related connectors for damage or corrosion
  • Check to see if there is a malfunction in the MAF/BPS system circuitry
  • Check to see if unmetered air is entering the engine
  • Check if there is sufficient airflow to the engine
  • Check for clogged air filter
  • Check for a damaged or defective air inlet pipe
  • Check for a clogged catalytic converter
  • Check for any vacuum leaks
  • Check for power and ground at the barometric pressure and manifold air pressure sensors
  • Check the sensors against manufacturer recommendations for proper operation (hertz)

How serious is the P1107 code?

Because a vehicle’s safe driving operation most likely will be not impacted due to faults that store a P1107 code, this code is not considered potentially serious. When this code appears, it is recommended to take your vehicle to your local service center or mechanic for repair and diagnosis as soon as possible.

What repairs can fix the P1107 code?

Several repairs can fix a P1107 trouble code and include:

  • Repair any damaged or corroded wiring and related electrical connectors
  • Replace clogged or defective filters
  • Repair damaged or defective air inlet pipe
  • Repair any vacuum leaks or replace vacuum hoses
  • Replace damaged or defective manifold absolute pressure sensor
  • Replace damaged or defective barometric pressure sensor
  • Replace and reprogram damaged or defective ECM
  • Clear all codes, test-drive the vehicle, and rescan to see if any codes reappear

Additional information related to a P1107 code

It is always recommended to diagnose trouble codes in the order in which they are stored. Mass airflow, manifold air pressure, or engine misfire codes, if present, should be diagnosed and repaired prior to diagnosing and repairing a P1107 trouble code.

Need help with a P1107 code?

YourMechanic offers certified mobile mechanics who will come to your home or office to diagnose and repair your vehicle. Get a quote and book an appointment online or speak to a service advisor at 1-800-701-6230.

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Skip the repair shop, our top-rated mechanics come to you.

At your home or office

Choose from 600+ repair, maintenance & diagnostic services. Our top-rated mechanics bring all parts & tools to your location.

Fair & transparent pricing

See labor & parts costs upfront, so you can book with confidence.

12-month, 12,000-mile warranty

Our services are backed by a 12-month, 12,000-mile warranty for your peace of mind.

Get A Quote

Need Help With Your Car?

Our certified mobile mechanics make house calls in over 2,000 U.S. cities. Fast, free online quotes for your car repair.


More related articles

Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
The Traveler’s Guide to Driving in Malaysia
CraigBurrows / Malaysia is a popular destination for many tourists today. The country has amazing sights and attractions that you will want to explore....
P0684 OBD-II Trouble Code: Glow Plug Control Module to PCM Communication Circuit Range/Performance
P0684 code means there is a failing connection within the Glow Plug Control Module often due too corroded wires and solenoid failures.

Related questions

Q: Nav and radio cutting out

I explain symptoms that seem to come out of nowhere with a metaphor about a light bulb. We use light bulbs for years and then suddenly, it burns out. Why did it happen when it did is hard to know...

Q: Check engine light is on with codes P2063 and P2064

Hello. The codes you are getting are for the exhaust fluid injection system. Most of the time, this is the result of a failure in the fluid sensor. In some cases, the tank and sensor can be cleaned but most...

Q: Check Engine Light does not come on even though there are trouble codes present

The pink/light green wire in ECM pin 2 on the connector will ground the wire internally to the ECM to turn on the Check Engine Light. You could test the wire with the key on and it should have battery...