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AutoCodes - BMW - P12A9 BMW

P12A9 BMW Code - Boost Pressure Sensor Pressure Too High

- Code Popularity: 12,675 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
Table of contents
By - Updated Sep 10, 2019
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|Code P12A9 BMW Possible Causes

  • Faulty Boost Pressure Sensor
  • Boost Pressure Sensor harness is open or shorted
  • Boost Pressure Sensor circuit poor electrical connection

|How do I Fix the Code P12A9 BMW?

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 connector's pins.

Does your BMW have Safety Recalls? → Check here

|What is the Cost to Diagnose the Code P12A9 BMW?

Labor: 1.0

The cost of diagnosing the P12A9 BMW code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle's make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.

|What are Code P12A9 BMW Possible Symptoms?

  • Engine Light ON (or Service Engine Soon Warning Light)

|Code P12A9 BMW Description

During the control module's shutdown phase the diagnostic function monitors the barometric- pressure sensor, intake-manifold pressure sensor, and boost-pressure sensor to determine whether they are all measuring the same
pressure. The ECM sets the OBDII code when the Boost Pressure Sensor is not to factory specifications.

OBDII Code P12A9 BMW - Boost Pressure Sensor Pressure Too High -
P12A9 BMW Code - Boost Pressure Sensor Pressure Too High

|Need More Information on the P12A9 BMW Code?

Need more information on how to fix the P12A9 BMW code? Get Access to Factory Service Manuals

|Need Help with the P12A9 BMW Code?

Get the P12A9 BMW code diagnosed by a professional: Find a repair shop in your area

|Code P12A9 BMW comments

Help us improve Leave a comment below or tell us if the information above helps you fix the code. What are the symptoms on your vehicle for the P12A9 BMW code? Have you replaced any parts?
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