P1106

CIRCUIT DESCRIPTION

Schematic:

The Manifold Absolute Pressure (MAP) sensor responds to changes in intake manifold pressure. The PCM supplies a 5 volt reference and a ground for the MAP sensor. The MAP sensor provides a signal to the PCM relative to the pressure changes in the manifold. The MAP sensor signal voltage to the PCM varies from below 2 volts at idle (low manifold absolute pressure - high vacuum) to above 4 volts with the key ON, engine not running or at wide-open throttle (high manifold absolute pressure - low vacuum). The PCM monitors the MAP signals for voltages outside the normal range of the MAP sensor. If the PCM detects a MAP sensor voltage that is intermittently high, DTC P1106 will set.

CONDITIONS FOR RUNNING THE DTC
^ No TP sensor DTCs are set
^ The engine has been running for a length of time that is determined by start-up coolant temperature. The length of time ranges from 3 minutes at less than -30°C (-22°F) to less than a second at more than 30°C (86°F).
^ The throttle angle is less than 89 percent when engine speed is less than 1000 RPM.
^ The throttle angle is less than 97 percent when engine speed in above 1000 RPM.

CONDITIONS FOR SETTING THE DTC
^ The MAP sensor signal voltage is more than 4.9 volts;
^ The condition exists for less than 1 second.

ACTION TAKEN WHEN THE DTC SETS
^ The PCM will illuminate the Malfunction Indicator Lamp (MIL) the first time the malfunction is detected.
^ The PCM will store the conditions present when the DTC set as Freeze Frame and Fail Records data.

CONDITIONS FOR CLEARING THE MIL/DTC
^ The PCM will turn the MIL OFF during the third consecutive trip in which the diagnostic runs and passes.
^ The History DTC will clear after 40 consecutive warm-up cycles have occurred without a malfunction.
^ The DTC can be cleared by using the scan tool Clear DTC Information function.

DIAGNOSTIC AIDS
It the condition is intermittent, refer to Intermittent Conditions in Symptoms. Intermittent Conditions