Code Definition

P1106 — Manifold Absolute Pressure (MAP) Sensor Circuit Intermittent High Voltage

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

About P1106

P1106 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 P1106 is stored, the module has detected a signal or supply voltage higher 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.

P1106 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 P1106 fault code indicates a problem with the Manifold Absolute Pressure (MAP) Sensor Circuit, characterised by intermittent high voltage. This code is set when the Powertrain Control Module (PCM) detects that the MAP sensor signal is intermittently spiking to a higher voltage than expected. This intermittent high voltage can indicate an issue with the sensor or its circuit, affecting the sensor's ability to accurately measure the pressure within the intake manifold. Accurate MAP sensor readings are vital for proper engine management, including fuel delivery and ignition timing.

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