Circuit/System Verification

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

Ignition - On/Vehicle - In Service Mode
Verify DTC P0641, P0651, P0697, P06A3, P2228, P2229, P2230, P227C, P227D, P227E is not set.
- If any of the DTCs are set
  Refer to Diagnostic Trouble Code (DTC) List - Vehicle
- Go to next step: If none of the DTCs are set
Verify the following conditions do not exist:
- B75C Multifunction Intake Air Sensor
  - Cracked/Visible Damage
  - Leaking @ O-Ring - Missing/Visible Damage
  - Restricted - Moisture/Ice
  - Skewed
- If a condition exists
  Repair or replace as necessary
- Go to next step: If no condition exists
Verify the scan tool parameter: BARO = 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
- If in the specified range
Verify the scan tool parameter:
- BARO Sensor 1 = The value should not spike or drop out.
- BARO Sensor 2 = The value should not spike or drop out.
- Perform the action while monitoring the parameter:
- Wiggle the harness and connector: B75C Multifunction Intake Air Sensor
- Wiggle the harness and connector: K20 Engine Control Module
- If the value spikes or drops out
  Repair as necessary - Wiring/Terminal(s)/Electrical Connector(s)
- Go to next step: If the value does not spike or drop out
All OK.