What does code P1106 mean?

Q: What does code P1106 mean?

MAP Sensor Circuit Voltage Intermittent. P1106 on a GM vehicle means the powertrain control module (PCM) has seen the manifold absolute pressure (MAP) sensor signal voltage jump or drop intermittently rather than follow a smooth, predictable curve. The PCM compares the MAP signal against throttle position and engine speed, and when the voltage briefly falls outside the expected window it flags the circuit as intermittent.

DTC codes / GM codes / P1106

P1106 · GMMAP Sensor Circuit Voltage Intermittent

P1106 on a GM vehicle means the powertrain control module (PCM) has seen the manifold absolute pressure (MAP) sensor signal voltage jump or drop intermittently rather than follow a smooth, predictable curve. The PCM compares the MAP signal against throttle position and engine speed, and when the voltage briefly falls outside the expected window it flags the circuit as intermittent.

SystemPowertrain

Code typeGM specific

SeverityMedium

Fix difficultyIntermediate

AreaFuel and air metering

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