MAP - Barometric Pressure Correlation
The P0069 code means the vehicle's onboard diagnostic system has detected: MAP - Barometric Pressure Correlation. This is a moderate severity code.
- Keep driving?
- Short distances only
- DIY difficulty
- moderate
- Estimated cost
- $100 - $350 (parts and labor)
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What Are the Symptoms of P0069?
- Check Engine Light on
- Poor engine performance at varying altitudes
- Reduced power output
- Rough idle or stalling
What Causes P0069? (Most Likely First)
- Faulty MAP sensor Very High
- Clogged or kinked MAP sensor vacuum line High
- Faulty barometric pressure sensor Moderate
- Intake manifold vacuum leak Moderate
Can I Still Drive with P0069?
Short distances only. P0069 is rated moderate severity. Keep trips short and get it diagnosed soon rather than waiting for symptoms to worsen.
Frequently Asked Questions
What does P0069 mean?
P0069 indicates a correlation error between the MAP sensor and barometric pressure sensor readings, meaning one or both sensors are providing inaccurate data.
What is the barometric pressure sensor?
Some vehicles have a separate barometric pressure sensor, while others use the MAP sensor to read barometric pressure at key-on before the engine starts. P0069 sets when these readings do not correlate.
How do I diagnose P0069?
Compare the MAP sensor reading at key-on engine-off to actual barometric pressure. Check the MAP sensor vacuum line for blockages and test both sensors with a scan tool.
Mechanics Guide Step-by-step diagnosis
How Do You Diagnose P0069?
-
Confirm P0069 and check MAP and BARO sensor readings
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Compare MAP sensor reading at key-on engine-off to barometric pressure
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Inspect MAP sensor vacuum line for blockages or leaks
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Test MAP and BARO sensor signals with scan tool
Sources 2
This page is built from documented references. Verify against your own service info before repair work.
- SAE J2012Diagnostic Trouble Code Definitions (defines the generic OBD-II code ranges)
- Cross-checked against the SAE J2012:2002 DTC table (2026-08-27)archived scan of the SAE standard — readable copy, not SAE’s current edition
Which Vehicles Commonly Get P0069?
- 2008-2018 Chevrolet Silverado
- 2010-2020 GMC Sierra
- 2007-2017 Dodge Ram 1500
- 2009-2019 Ford F-150
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