Code Definition

P0106 — Manifold Absolute Pressure/Barometric Pressure Circuit Range/Performance

System: Powertrain  |  Type: Generic (OBD-II Standard)  |  Make: Generic

About P0106

P0106 is a generic (obd-ii standard) powertrain diagnostic trouble code. It belongs to the P-prefix family of codes, which covers engine, transmission, emissions, or fuel-system faults.

When P0106 is stored, the module has detected a plausibility fault — the measured value is in the electrical range but is not consistent with expected operating behaviour.

Scanning & clearing: A generic OBD-II scan tool will usually read and clear powertrain (P) codes. For live data, freeze-frame capture, and bi-directional tests you may need a more capable scan tool that supports the vehicle's ECM protocol.

Because P0106 is a generic OBD-II code, its base definition is shared across manufacturers. The specific diagnostic steps, reference values, and repair procedures can vary by vehicle, and the TaT Diagnostic Assistant includes verified procedures submitted by working technicians.

Code Information

The P0106 code indicates a problem with the range or performance of the Manifold Absolute Pressure (MAP) sensor or the Barometric Pressure sensor circuit. These sensors measure the pressure in the intake manifold and the ambient atmospheric pressure, respectively, providing critical data to the Engine Control Module (ECM) for managing fuel injection and ignition timing. The ECM sets this code when it detects that the readings from either the MAP sensor or the Barometric Pressure sensor are out of the expected range or the sensors' performance is irregular.

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