Circuit/System Verification

WARNING: This page is about a different variant/trim than selected.

Ignition - On / Vehicle - In Service Mode
Verify DTC P0033 - P0035 is not set.
- If any of the DTCs are set
  Refer to DTC P0033-P0035
- Go to next step: If none of the DTCs are set
Determine the current vehicle testing altitude.
Verify the scan tool parameter: Barometric Pressure Sensor = The value should be within the range listed in the table: Altitude Versus Barometric Pressure
- If not in the specified range
  Refer to DTC P2228-P2230 or P227C-P227E
- Go to next step: If in the specified range
Verify the following parameters are within 3 kPa (0.4 PSI) of each other:
- Turbocharger/Supercharger Boost Pressure Sensor
- Barometric Pressure Sensor
- If not within 3 kPa (0.4 PSI) of each other
  Refer to DTC P0236, P0237, or P0238
- Go to next step: If within 3 kPa (0.4 PSI) of each other
Perform the scan tool control function: Turbocharger/Supercharger Bypass Valve - Increase & Decrease
Verify a click can be heard or felt at the following component(s) when the scan tool control function was commanded: Q40 Turbocharger Bypass Valve Solenoid
- If a click cannot be heard or felt
  Refer to: Circuit/System Testing
- Go to next step: If a click can be heard or felt
Operate the vehicle within the Conditions for Running the DTC. You may also operate the vehicle within the conditions that you observed from the Freeze Frame/Failure Records data.
Verify the DTC does not set.
- If the DTC sets
  Refer to: Circuit/System Testing
- Go to next step: If the DTC does not set
All OK.