P0235-BOOST PRESSURE SENSOR PLAUSIBILITY

For a complete wiring diagram Refer to Section 8W

• When Monitored:

  With the engine speed below 850 rpm. No other Boost Pressure Sensor DTC's present and no Inlet Air Pressure Sensor or Atmospheric Pressure Sensor DTC's.

• Set Condition:

  The Boost Pressure Sensor signal differs from the Atmospheric Pressure Sensor signal by 150 hpa.

Diagnostic Test

NOTE: If DTC P0641 or P0651 is present with this DTC, diagnose DTCs P0641 and P0651 before diagnosing this DTC.

NOTE: If the ECM detects and stores a DTC, the ECM also stores the engine/vehicle operating conditions under which the DTC was set. Some of these conditions are displayed on the scan tool at the same time the DTC is displayed.

NOTE: Before erasing stored DTCs, record these conditions. Attempting to duplicate these conditions may assist when checking for an active DTC.

NOTE: Engine idle speed must be below 850 RPM.