Engine Control Module: Service and Repair

Replacement

CAUTION:
- In the case of the vehicle equipped with immobilizer, perform "Key Teaching" procedure together .

1. Turn ignition switch OFF and disconnect the negative (-) battery cable.
2. Disconnect the ECM connector (A).




3. Remove the air cleaner & ECM assembly .
4. Remove the ECM mounting bolts (A) and remove the ECM (B).




5. Install a new ECM.

ECM installation bolts:
9.8 - 11.8 N.m (1.0 - 1.2 kgf.m, 7.2 - 8.7 lb-ft)


6. Perform "Key Teaching" procedure .

VIN programming procedure

VIN (Vehicle Identification Number) is a number that has the vehicle's information (Maker, Vehicle Type, Vehicle Line/Series, Body Type, Engine Type, Transmission Type, Model Year, Plant Location and so forth. For more information, please refer to the group "GI" in this SERVICE MANUAL). When replacing an ECM, the VIN must be programmed in the ECM. If there is no VIN in ECM memory, the fault code (DTC P0630) is set.

CAUTION:
The programmed VIN cannot be changed. When writing the VIN, confirm the VIN carefully

1. Select "Vehicle" and "Engine" (For example, TUCSON 2.0L L4).




2. Select "VIN WRITING".




3. Check the PCM status.





NOTE:
- VIRGIN: VIN is not programmed
- LEARNT: VIN has been already programmed

Is the PCM status "VIRGIN"?





4. Write the VIN with cursor, function and number keys.

WARNING:
Before pressing the "ENTER" key, confirm the VIN again because the programmed VIN cannot be changed.




5. After verifying the written VIN, press the "ENTER" key.
6. Turn the ignition switch OFF, and then turn ON.




7. Verify the programmed VIN in the ECM memory.