NOTE: Ensure the Tech 2® and the terminal are both equipped with the latest software before performing SPS.

The Off-Board Programming Adapter Kit (J 41207-C) is required when a module must be programmed without having the vehicle present. The adapter allows the module to be turned ON and communicate with the Tech 2®.

Performing Off-Board Pass-Thru Procedure

Launch the TIS application in the terminal.
Select the Service Programming System.
Highlight the following information on the Select Diagnostic Tool and Programming Process Screen:
- Select Diagnostic Tool
  
  Select Pass-Thru.
- Select Programming Process
  
  Identify whether an existing module is being reprogrammed, or a module is being replaced with a new one.
- Select ECU Location
  
  Select Off-Board Programming Adapter.
Select Next.

NOTE: In order to reduce the potential for signal loss, the RS-232 cable should NOT be more than 25 feet long.

Complete all terminal-directed data at 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 following components:
- The control module.
- The Off-Board Programming Adapter (OBPA), refer to the TIS Users Guide for a listing of OBPA.
- 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 (VCI)
  
  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.

Select OK.
When programming is complete, a Program Controller/Programming Complete screen appears. Follow the on-screen instructions, if any.
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.

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

• You smell fuel, burning insulation, or see smoke.

• Brakes feel soft, pull hard to one side, or make grinding noises.

• The engine overheats, stalls repeatedly, or misfires under load.

• You are missing required tools, torque specs, or safe lifting equipment.

• You are not confident in the next step or safety outcome.

Safety Warning

Off-Board Pass-Thru Procedure

Use the Manual With the Right Hardware

When to See a Mechanic

Rather have a pro handle this?