Performing Pass-Thru Procedure

Launch the TIS application at the terminal.
Select the SERVICE PROGRAMMING SYSTEM.
Highlight the following information on the Select DIAGNOSTIC TOOL PROGRAMMING PROCESS screen:
1. Select Diagnostic Tool - Select PASS-THRU.
2. Select Programming - Identify whether an existing module is being reprogrammed or a module is being replaced with a new one.
3. Select ECU Location - Select vehicle.
Select NEXT.

NOTE: To reduce the potential for signal loss, the RS-232 cable should not be more than 25 feet long.

Complete all terminal-directed data on the PREPARING FOR COMMUNICATION/DETERMINE VEHICLE screen until NEXT is highlighted.
Select NEXT.

NOTE: Ensure the correct connector for the control module is used.

Follow the on-screen instructions for connecting the control module, the Off-Board Programming Adapter (OBPA). Refer to the TIS Users Guide for a listing of OBPA, or the Tech 2®.
Select NEXT.
Pass-Thru displays the VIN stored in the control module. If a new control module is being programmed, enter the correct VIN of the vehicle.
Select NEXT.
Select the appropriate options if the Options screen appears.
Select Next.

NOTE: When selecting the Vehicle Configuration Index (VCI) programming type, a valid VCI number for the vehicle must be entered. This number may be obtained from Techline Customer Support.

Select the type of programming to be performed from the following categories:
- Normal - Used for updating an existing calibration or programming a new controller.
- Vehicle Configuration Index - Used for updating an existing controller or programming a new controller for newer vehicles whose VINs are not yet in the database.
- Reconfigure - Used to reconfigure a vehicle for changes in tire size and axle ratios.
Select Next.
Select a calibration selection on the Calibration Selection screen, if necessary.
Ensure all the desired calibration folder tabs have a Green check mark.
Select NEXT.
Verify the current and selected calibration of the control module on the Summary screen.
Select NEXT.

NOTE: Select CANCEL if you receive a message stating that the calibration selected is already the current calibration in the control module and reprogramming with the same download is not allowed.

Select OK.

NOTE: On model year 1996 and newer controllers, a Crankshaft Position (CKP) relearn procedure box may appear.

Complete all of the terminal-directed data on the Programming Complete screen.
Select OK.
Select CLOSE.
Turn OFF the OBPA.
Turn OFF the scan tool.

NOTE: Wait 30 seconds after the OBPA is shut OFF before disconnecting the control module.

Disconnect the OBPA from the Tech 2® and the control module.