Engine Control System

TROUBLE CODE CHARTS




PART 1 OF 4




PART 2 OF 4




PART 3 OF 4




PART 4 OF 4

NOTE:
1. After the Engine Control Module (ECM) detects a malfunction, the Check Engine/Malfunction Indicator Lamp illuminates when the engine is next turned on and the same malfunction is re-detected.
However, for items marked with a "*", the Check Engine/Malfunction Indicator Lamp illuminates on the first detection of the malfunction.
2. After the Check Engine/Malfunction Indicator Lamp illuminates, it will be switched off under the following conditions.
- When the ECM monitored the powertrain malfunction three times* and 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.
3. Do not replace the engine control module (ECM) until a thorough terminal check reveals there are no short/open circuits.
3. O2 : Heated oxygen sensor
4. Sensor 1 : indicates sensors which are mounted closest to the engine.
5. Sensor 2 : indicates sensors which are mounted next-closest to the engine.


CAUTION: If the Check Engine/Malfunction Indicator Lamp illuminates because of a malfunction of the ECM, transmission between the scan tool and the ECM cannot occur. In this case, the diagnostic trouble code cannot be read