Manifold Absolute Pressure / Barometric Pressure Circuit Intermittent
The ECU detects intermittent signal dropouts on the MAP/BARO sensor circuit. Fault is not constantly present — typically caused by loose connectors, chafed wiring, or a sensor failing under thermal load.
Affected components
- Map sensor
- Map connector
- Map wiring
Common causes
- High likelihood: MAP connector loose or corroded
- Medium likelihood: Sensor fails when hot
- Medium likelihood: Wiring chafed or pinched
Diagnostic notes
- The malfunction indicator lamp may illuminate
- This code can affect emissions
- A drive cycle may be required after repair
Sources
Diagnostic information is provided for reference only. Confirm the code with a compatible scan tool and follow the vehicle manufacturer's service procedures before replacing components.