Aerio - Control Module (ECM) Diagnostic Trouble Code (DTC) Check
- Check for DTCs in ECM. See appropriate SELF-DIAGNOSTICS article in ENGINE PERFORMANCE.
- If DTC P0500 is detected go to DTC P0500: VEHICLE SPEED SENSOR (VSS) MALFUNCTION in appropriate SELF-DIAGNOSTICS article in ENGINE PERFORMANCE: If DTC P0500 is not detected go to CHECK VSS CIRCUIT FOR OPEN .