DTC P0106: Manifold Absolute Pressure Circuit Range/Performance Problem

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
Compare load value with manifold absolute pressure sensor output voltage.
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 <Range/Performance problem-high input> 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.
Engine speed is lower than 1,500 r/min.
Throttle position sensor output voltage is lower than 0.9 volt.

Judgement Criteria
• Manifold Absolute pressure is 89 kPa (26.3 in.Hg) or higher for 2 seconds.
DTC SET CONDITIONS <Range/Performance problem-low input> 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.
• Engine speed is higher than 1,500 r/min.
• Throttle position sensor output voltage is higher than 3.5 volts.

Judgement Criteria
• Manifold Absolute pressure is 45 kPa (13.3 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.