Circuit/System Verification
- Ignition ON, observe the scan tool MAP sensor pressure parameter. Start the engine, verify the scan tool MAP sensor pressure parameter changes.
- If the scan tool MAP sensor pressure parameter does not change, refer to DTC P0107 or P0108 for further diagnosis.
- Verify that other DTCs are not set.
- If any DTCs are set, refer to Diagnostic Trouble Code (DTC) List - Vehicle .
- 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. DTC P0133 or P0139 should not set.
- If the vehicle passes the Circuit/System Verification test, then operate the vehicle within the conditions for running the DTC. You may also operate the vehicle within the conditions that are captured in the Freeze Frame/Failure Records List.
IMPORTANT:
In extreme cold weather conditions ice may form in the vacuum source to the MAP sensor and may set a DTC. Inspect the MAP sensor and the vacuum source for ice, moisture, or other restrictions.