What does code P1553 mean?

Q: What does code P1553 mean?

Barometric Manifold Pressure Signal Ratio Out Of Range. P1553 on Volkswagen vehicles indicates that the engine control module (ECM) has detected an out-of-range ratio between the barometric pressure (BARO) signal and the manifold absolute pressure (MAP) signal. The ECM compares these two pressure readings during key-on or specific operating conditions, and when the calculated ratio falls outside the expected range, it sets this code.

DTC codes / Volkswagen codes / P1553

P1553 · VolkswagenBarometric Manifold Pressure Signal Ratio Out Of Range

P1553 on Volkswagen vehicles indicates that the engine control module (ECM) has detected an out-of-range ratio between the barometric pressure (BARO) signal and the manifold absolute pressure (MAP) signal. The ECM compares these two pressure readings during key-on or specific operating conditions, and when the calculated ratio falls outside the expected range, it sets this code.

SystemPowertrain

Code typeVolkswagen specific

SeverityMedium

Fix difficultyIntermediate

AreaVehicle speed, idle control and auxiliary inputs

Guidance is general and written for Volkswagen vehicles. Exact tests and values vary by model, so confirm the fault before replacing parts.