DTC Advanced Diagnostics: P0105
DTC P0105:Manifold Absolute Pressure (MAP) Sensor Out of Range

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. The MAP sensor outputs low signal voltage at high vacuum (throttle valve closed) and high signal voltage at low vacuum (throttle valve wide open). If the signal voltage from the MAP sensor exceeds 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
6 seconds or more
DTC Type
Two drive cycles, MIL on

Enable Conditions
Condition
  
Vehicle
ON mode

Malfunction Threshold
The MAP sensor output voltage [MAP SENSOR] is 3.30 V or more for at least 6 seconds.

[ ]: HDS Parameter

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.
MAP sensor failure
PCM internal circuit failure

Diagnosis Details
Conditions for setting the DTC
When a malfunction is detected during the first drive cycle, a Pending DTC is stored in the PCM memory. If the malfunction returns in the next (second) drive cycle, the MIL comes on and a Confirmed DTC and the freeze data are stored.

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 or by disconnecting the 12 volt battery.