Engine Management

Scan Tool 37 (MIL 14):

Trouble Code Number
- Scan tool 37
- General scan tool P0108
- MIL 14

Fault Message
- MAP Sensor Voltage Too High

Background
- This code is generated when the MAP sensor voltage exceeds the maximum voltage of 4.7 volts.

Range of Check
- Engine: 400-1,500 r/min
- Throttle position sensor output voltage: Less than 1.3 V

Set Condition
- MAP sensor output voltage remains less than 4.7 V for 2 seconds.

Probable Cause
- Signal circuit open
- Sensor open internally
- Sensor ground circuit open
- Sensor signal circuit shorted to voltage
- PCM failed