DTC P0107: Manifold Absolute Pressure Circuit Low Input

CIRCUIT OPERATION
• A 5-volt voltage is supplied to the manifold absolute pressure sensor power terminal (terminal No. 3) from the PCM (terminal No. 46). The ground terminal (terminal No. 2) is grounded with PCM (terminal No. 57).
• A voltage that is proportional to the intake manifold pressure is sent to the PCM (terminal No. 91) from the manifold absolute pressure sensor output terminal (terminal No. 1).
TECHNICAL DESCRIPTION
• The manifold absolute pressure sensor outputs a voltage which corresponds to the intake manifold pressure.
• The PCM checks whether this voltage is within a specified range.
DESCRIPTIONS OF MONITOR METHODS
Manifold absolute pressure sensor output voltage is out of specified range.
MONITOR EXECUTION
Continuous
MONITOR EXECUTION CONDITIONS (Other monitor and Sensor)

Other Monitor (There is no temporary DTC stored in memory for the item monitored below)
• Not applicable

Sensor (The sensor below is determined to be normal)
• Engine coolant temperature sensor
• Throttle position sensor
DTC SET CONDITIONS Logic Flow Chart


Check Conditions
8 minutes or more have passed since the starting sequence was completed, when the engine coolant temperature at engine start is 0°C (32°F) or lower.
Throttle position sensor output voltage is higher than 1.25 volts.

Judgement Criteria
• Manifold Absolute pressure is 4.9 kPa (1.4 in.Hg) or lower for 2 seconds.
OBD-II DRIVE CYCLE PATTERN
Refer to Diagnostic Function - OBD-II Drive Cycle - Procedure 6 - Other Monitor .
TROUBLESHOOTING HINTS (The most likely causes for this code to be set are: )
• Manifold absolute pressure sensor failed.
• Open or shorted manifold absolute pressure sensor circuit, harness damage or connector damage.
• PCM failed.