Code Definition

P1107 — Manifold Absolute Pressure (MAP) Sensor Circuit Intermittent Low Voltage

System: Powertrain  |  Type: Manufacturer-Specific  |  Make: Generic

About P1107

P1107 is a manufacturer-specific powertrain diagnostic trouble code. It belongs to the P-prefix family of codes, which covers engine, transmission, emissions, or fuel-system faults.

When P1107 is stored, the module has detected a signal or supply voltage lower than the expected operating range; and a sensor-related fault — the reported value from the named sensor is out of spec.

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.

P1107 is a manufacturer-specific code. The same code string on a different make may have a different meaning. Always confirm the code's definition against the vehicle's service information for the specific make and model under test.

Code Information

The powertrain control module (PCM) sets this code when it detects an intermittent low voltage signal from the MAP sensor. The MAP sensor measures intake manifold pressure and sends a voltage signal to the PCM, which uses this data for fuel and ignition control. If the sensor signal momentarily drops below the expected threshold, the PCM registers P1107.

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