OEM 2002 Cadillac Eldorado Engine Control Module

2002 Cadillac Eldorado Engine Control Module Parts and Q&A

• Q: How to perform off-board programming of the Engine Control Module on 2002 Cadillac Eldorado?

  A: You must first retrieve the VIN of the vehicle before conducting off-board programming of the Engine Control Module. Service Programming on Techline terminal allows users to choose Tech 2(TM) followed by Reprogram ECU while setting Off-Board Programming Adapter as the ECU location. Connect a correct harness from the Off-Board Programming Adapter kit to join the control module with the Tech 2(TM) and Off-Board Programming Adapter. The Service Programming Request Information function on the Tech 2(TM) enables you to obtain access code from the control module before exiting this function. Turn ON the Tech2(TM) after disconnecting it from the Off-Board Programming Adapter and then bring it to the Techline terminal. The VIN entry on the Techline terminal enables database connection according to the displayed message. Start by determining the programming type for the calibration then choose the right file and ensure all connections stay tight. When you confirm your selection on the Techline terminal it will proceed to automatically transfer the calibration files into the Tech 2(TM). The Off-Board Programming Adapter becomes the next connection for the Tech 2(TM) after you switch it off from the Techline terminal and complete the download process. Select Service Programming on the Tech 2(TM). When programming the control module do not interrupt or fail the procedure or disconnect the Off-Board Programming Adapter until the techline operating software proves up-to-date and all connections remain securely installed. The failure of control module programming requires you to replace the component. Complete the download process under Service Programming on the Tech 2(TM) then proceed to program selection before finally shutting off the Off-Board Programming Adapter.