P0105-TURBOCHARGER INLET 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 Atmospheric Pressure Sensor or Inlet Pressure Sensor DTC's present.

• Set Condition:

  The Boost Pressure Sensor signal differs from the Atmospheric Pressure Sensor signal by 150 hpa or greater for at least 2.0 seconds.

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.

• Go To2

• Refer to the *CHECKING FOR AN INTERMITTENT DTC Diagnostic Procedure. (Refer to 9 - ENGINE - DIAGNOSIS AND TESTING)

• Go To3

• Repair the Boost Pressure Sensor Signal circuit for high resistance.
• Perform the ECM Verification Test Ver. 1 (Refer to 9 - ENGINE - DIAGNOSIS AND TESTING).

• Go To4

• Repair the Boost Pressure Sensor Ground circuit for high resistance.
• Perform the ECM Verification Test Ver. 1 (Refer to 9 - ENGINE - DIAGNOSIS AND TESTING).

• Go To5

• Repair the Boost Pressure Sensor 5-Volt Supply circuit for high resistance.
• Perform the ECM Verification Test Ver. 1 (Refer to 9 - ENGINE - DIAGNOSIS AND TESTING).

• Replace and program the Engine Control Module in accordance with the Service Information.
• Perform the ECM Verification Test Ver. 1 (Refer to 9 - ENGINE - DIAGNOSIS AND TESTING).

• The repair is complete.
• Perform the ECM Verification Test Ver. 1 (Refer to 9 - ENGINE - DIAGNOSIS AND TESTING).