Circuit/System Verification

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

Ignition - On/Vehicle - In Service Mode
Verify DTC P227B, P227C, P227D, P227E, U060F, U1319, U1346 is not set.
- If only DTC P227B, P227C, P227D, P227E is set
  Replace the component: B75 Mass Airflow Sensor
- If DTC U060F, U1319, U1349 is set and other DTCs are set
  Refer to: DTC P0102, P0103, U060F, or U1319
- Go to next step: If no DTC is set
Verify the scan tool parameter: BARO Sensor 2 = The value should be within the range listed in the table: Altitude Versus Barometric Pressure
- If not in the specified range
  Replace the component: B75 Mass Airflow Sensor
- Go to next step: If in the specified range
Verify the scan tool parameter: DTC Display
Perform the action while monitoring the parameter:
- Wiggle the harness and connector(s): B75 Mass Airflow Sensor
- Wiggle the harness and connector(s): K20 Engine Control Module
- If the DTC sets
  Repair as necessary - Wiring/Terminal(s)/Electrical Connector(s)
- Go to next step: If the DTC is not set
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
  Repeat the procedure starting at step 2
- Go to next step: If the DTC is not set
All OK.