99 Lexus GS400 4.0L V8 1UZ-FE RWD AT ECU ECM PCM Engine Computer 89661-3A542 820


Out of stock
SKU 2400820


Engine control module from a 1999 Lexus GS400. This was carefully removed from a vehicle that ran well with no check engine light on. The case has no damage. One of the plastic connector guides is broken but this does not effect its function. The circuit board has been inspected and no corrosion or other damage was found. The images are of the actual item you will receive.

This item will require on-car programming, coding or flashing during installation in order to work with your vehicle. Please confirm that you or your repair facility can perform this procedure before making your purchase. 

Fits 1999 Lexus GS400 with 4.0L V8 engine (1UZ-FE) and part number 89661-3A542, 89661-3A541 or 89661-3A543 ONLY.



Manufacturer Part Number

Interchange Part Number


Programming Required




Item Compatibility List

Year Make Model Trim Engine Notes
1999 Lexus GS400 Base Sedan 4-Door 4.0L 3969CC V8 GAS DOHC Naturally Aspirated