DTC 32, Map Sensor, High VLTGE Input - High Manifold Pressure: Notes

Manifold Absolute Pressure (MAP) sensor responds to changes in intake manifold pressure (vacuum). ECM applies 5 volts to MAP sensor. Changes in pressure, resulting from engine load and RPM, are converted into voltage input monitored by ECM. A low voltage reading at ECM indicates low manifold pressure and a high voltage at ECM indicates high manifold pressure. DTC 32 will set when high voltage input at ECM indicates intake manifold pressure greater than 974 mm Hg. of vacuum for at least 0.5 second.

1. Checks MAP input wire for an open or short to voltage or a faulty ECM. Under normal conditions MAP input wire should have an available voltage of less than 5 volts. A short to 5 volts or B+ will set DTC 32.
2. Checks for an open in Light Green/Black wire, poor connection at MAP sensor or ECM, and for a faulty MAP sensor or ECM.