Aerio - Engine Control Module (ECM) Diagnostic Trouble Code Check
- Check for stored DTCs in ECM. See appropriate SELF-DIAGNOSTICS article in ENGINE PERFORMANCE.
- If there is a DTC related to throttle position sensor, check and repair TP sensor. See THROTTLE POSITION SENSOR in ON-VEHICLE ADJUSTMENTS article.
- If there is no DTC related to the throttle position sensor, go to AERIO -THROTTLE VALVE OPENING SIGNAL CIRCUIT CHECK .