Malfunction Indicator Lamp: Testing and Inspection

Items Indicated by the Malfunction Indicator Lamp (SERVICE ENGINE SOON)

Items Indicated By The Malfunction Indicator Lamp (service Engine Soon) Part 1:

Items Indicated By The Malfunction Indicator Lamp (service Engine Soon) Part 2:

NOTE: If the Malfunction Indicator Lamp (SERVICE ENGINE SOON) illuminates because of a malfunction of the engine control module (ECM), communication between the scan tool and the ECM is impossible. In this case, the diagnostic trouble code (DTC) cannot be read.

NOTE: After the ECM has detected a malfunction, the Malfunction Indicator Lamp (SERVICE ENGINE SOON) illuminates when the engine is next turned on and the same malfunction is re-detected. However, for items marked with a "*" in the DTC NO column, the Malfunction Indicator Lamp (SERVICE ENGINE SOON) illuminates on the first detection of the malfunction.

NOTE: After the Malfunction Indicator Lamp (SERVICE ENGINE SOON) illuminates, it will be switched off under the following conditions.
- When the ECM monitored the power train malfunction three times* it met set condition requirements, it detected no malfunction. *: In this case, "one time" indicates from engine start to stop.
- For misfiring or a fuel trim malfunction, when driving conditions (engine speed, engine coolant temperature, etc.) are similar to those when the malfunction was first recorded.

NOTE: Sensor 1 indicates the sensor mounted at a position closest to the engine, and sensor 2 indicates the sensor mounted at the position second closest to the engine.