DTC P0108: Map Sensor Volts Too High: Description

Circuit is monitored with engine speed at 600-3500 RPM and Throttle Position (TP) sensor voltage less than one volt. DTC will set when MAP sensor voltage is more than 4.9 volts at engine start or with engine running for 2 seconds. Possible causes are: signal circuit shorted to voltage, defective MAP sensor, signal circuit open, sensor ground circuit open or defective PCM.