Circuit Description

Powertrain Control Module (PCM) supplies a 5-volt reference signal and a ground circuit to Manifold Absolute Pressure (MAP) sensor. As manifold pressure changes, monitored MAP sensor signal voltage changes. PCM compares detected sensor voltage changes to a predetermined value set by PCM. If PCM does not see expected value, DTC P0106 will set.

For duplication of DTC, ensure:

• DTCs P0107, P0108, P0117, P0118, P0121, P0122, P0123, P0131, P0132, P0171, P0172, P0200, P0300, P0301, P0302, P0303, P0304, P0325, P0341, P0342, P0404, P0405, P0440, P0442, P0446, P0452, P0453, P0502, P0506, P0507, P0601, P0602 or P1442 are not set.
• Engine speed is greater than 900 RPM.
• Initial idle MAP value is greater than 60 kPa.
• Throttle position is less than 50 percent and changes are greater than 12 percent.