Required tools:
* Wrench set
* Flat head screwdriver
* Phillips screwdriver
* Tester (optional)
* Special tool for disconnecting connectors (optional)
* Torque wrench (optional)
Installation procedure:
1. Precautions
* Disconnect the negative terminal of the battery to avoid short circuit.
* Allow the engine to cool.
2. Dismantling the old control unit
*Locate the automatic transmission control unit under the hood or under the vehicle (location may vary depending on model).
* Disconnect all electrical connectors from the control unit. Press the connector tab and pull it up.
* Unscrew the mounting bolts or nuts holding the control unit.
* Carefully remove the control unit.
3. Preparing a new control unit
* Arrange the connectors on the new control unit in the same order as on the old one.
* Lubricate the connector O-rings with transmission fluid or electrical connector grease.
4. Installation of a new control unit
* Carefully push the new control unit into place.
* Install and tighten the mounting bolts or nuts.
* Connect all electrical connectors. Make sure they snap into place.
5. Check
* Connect the negative terminal of the battery.
* Check the correct operation of the automatic transmission control unit by moving the gear shift lever to all positions.
* Check for fault codes using a tester (if available).
*If any problems are found, contact a qualified mechanic for diagnosis and repair.
6. Resetting control units
* Disconnect the negative terminal of the battery for 30 minutes.
* Connect the negative terminal of the battery and start the engine.
* Let the engine idle for 10 minutes.
* This will allow the control units to adapt to the new automatic transmission control unit.
Note:
* During installation, be careful not to damage any electrical connectors or wires.
*Consult your vehicle’s repair manual for specific procedures for your model.
*If you are unsure of your mechanical skills, seek assistance from a qualified mechanic.