Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Diagnostic Test
- PROGRAMMING THE TRANSMISSION CONTROL MODULE (TCM) NOTE:
While performing the TCM programming procedure, the vehicle battery must be maintained between 10 and 16 volts. Ambient temperature must be between 0° C (32° F) 60° C (140° F). Vehicle must be in Park with brake pedal depressed.
- Using the scan tool and Dealer Connect, download the appropriate TCM flash file to the scan tool.
- Ignition on, engine not running.
- Vehicle in park with the brake pedal depressed.
- Following the menu on the scan tool, program the TCM.
- Clear any stored DTCs.
- Road test the vehicle above 40 m.p.h. for at least two minutes.
- With the scan tool, select View DTCs in the TCM.
Are there any DTCs present?
Yes
- Refer to the DTC INDEX and perform the appropriate diagnostic procedure(s).
No
- Test Complete
- Perform the TRANSMISSION VERIFICATION TEST. Refer to 6F24 TRANSMISSION VERIFICATION TEST .
NO RELATED
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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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.