DTC Advanced Diagnostics: P0107, P0108
DTC P0107:Manifold Absolute Pressure (MAP) Sensor Circuit Low Voltage
DTC P0108:Manifold Absolute Pressure (MAP) Sensor Circuit High Voltage

General Description

The manifold absolute pressure (MAP) sensor measures the pressure or vacuum in the manifold. This measurement is converted into an electrical signal which the powertrain control module (PCM) uses to monitor the engine. If the signal voltage from the MAP sensor is a set value for a specified time, the PCM detects a malfunction and stores a DTC.

Monitor Execution, Sequence, Duration, DTC Type
Execution
Continuous
Sequence
None
Duration
0.5 second or more
DTC Type
One drive cycle, MIL on

Enable Conditions
Condition
Minimum
Maximum
Engine speed [Engine Speed]
100 rpm
–
[ ]: HDS Parameter

Malfunction Threshold
DTC: P0107

The MAP sensor output voltage [MAP Sensor] is less than 0.12 V for at least 0.5 second.

DTC: P0108

The MAP sensor output voltage [MAP Sensor] is greater than 4.89 V for at least 0.5 second.

Possible Cause
NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.
DTC: P0107
MAP sensor PB line short to ground
MAP sensor VCC line open

DTC: P0108
MAP sensor SG line open
MAP sensor VCC line short to ground
MAP sensor power supply line short to ground

Common
MAP sensor failure
PCM internal circuit failure

Diagnosis Details
Conditions for setting the DTC
When a malfunction is detected, the MIL comes on and a Pending DTC, a Confirmed DTC, and the freeze data are stored in the PCM memory.

Conditions for clearing the DTC
The MIL is cleared if the malfunction does not return in three consecutive trips in which the diagnostic runs. The MIL, the Pending DTC, the Confirmed DTC, and the freeze data can be cleared with the scan tool Clear command.