Circuit/System Verification
WARNING: This page is about a different car, the 2022 Cadillac CT5. However, it is still accessible from the selected car via links, so may be relevant.
- Ignition - On/Vehicle - In Service Mode
- Verify DTC P0097, P0098, P0099, P00F4, P00F5, P00F6, P0112, P0113, P0114, U060F, U1346 is not set.
- If only DTC P0097, P0098, P0099, P00F4, P00F5, P00F6, P0112, P0113, P0114 is set
Replace the component: B75 Mass Airflow Sensor
- If DTC U060F, U1346 and one or more of the DTCs P0097, P0098, P0099, P00F4, P00F5, P00F6, P0112, P0113, P0114 is set
Refer to: Circuit/System Testing
- If only DTC U060F, U1346 is set
Refer to: Circuit/System Testing
- Go to next step: If no DTC is set
- If only DTC P0097, P0098, P0099, P00F4, P00F5, P00F6, P0112, P0113, P0114 is set
- Verify the scan tool parameter:
- Intake Air Relative Humidity Sensor = The value should not spike or drop out.
- Intake Air Temperature Sensor = The value should not spike or drop out.
- Intake Air Temperature Sensor 2 = The value should not spike or drop out.
- Perform the action while monitoring the parameter:
- Wiggle the harness and connector: B75 Mass Airflow 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
- 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 is not set
- If the DTC sets
- All OK.