Manifold Absolute Pressure / Barometric Pressure Circuit Malfunction
The ECU detects a general electrical malfunction in the manifold absolute pressure (MAP) or barometric pressure sensor circuit. Signal missing, implausible, or wiring broken. Generic fault when no more specific MAP code applies.
Affected components
- Map sensor
- Barometric pressure sensor
- Map wiring
- Vacuum hose
Common causes
- High likelihood: MAP sensor failed
- Medium likelihood: Vacuum hose to MAP sensor cracked or disconnected
- Medium likelihood: MAP wiring or connector fault
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.