Engine Control Module: Service and Repair

Replacement

CAUTION:
- In the case of the vehicle equipped with immobilizer, perform "KEY TEACHING" procedure together .
- When replacing an PCM, the VIN must be programmed in the PCM. If there is no VIN in PCM memory, the fault code (DTC P0630) is set.

1. Turn ignition switch OFF and disconnect the negative (-) battery cable.
2. Remove the cover of the PCM & relay box (A).




3. Disconnect the PCM connectors (A).




4. Unscrew the PCM bracket mounting bolt (B) and the nuts (C), and then remove the PCM.
5. Install a new PCM.

PCM installation bolts (on bracket) :
9.8 - 11.8 Nm (1.0 - 1.2 kg f-m, 7.2 - 8.7 lbf-ft)
PCM bracket installation bolt/nuts:
9.8 - 11.8 Nm (1.0 - 1.2 kgf-m, 7.2 - 8.7 lbf-ft)


6. Perform "Key Teaching" procedure .
7. Input the Vehicle Identification Number (VIN) .

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 PCM, the VIN must be programmed in the PCM. If there is no VIN in PCM 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"?
YES
> Go to next step 4.
NO
> END
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 PCM memory.