DTC P0107 - MAP SENSOR CIRCUIT LOW VOLTAGE GMC Envoy I

Note. For circuit reference, see WIRING DIAGRAMS - 4.3L article.

Circuit Description

Manifold Absolute Pressure (MAP) sensor measures changes in intake manifold pressure (vacuum). A low voltage signal, 1.0-1.5 volts, is sent to VCM on signal circuit at closed throttle (high vacuum). A high voltage signal, 4.0-4.5 volts is sent at wide open throttle (low vacuum).

Conditions for setting DTC

1. No TP sensor related DTCs.
2. Engine running.
3. TP sensor is at least zero percent when engine speed is not greater than 800 RPM.
4. TP sensor is at least 12.5 percent when engine speed is greater than 800 RPM.