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.
Safety Functions Of Transmission Control Module: Notes
If critical malfunctions occur when driving, the transmission will continue to operate in an emergency running mode. If the malfunction occurs in "D", "3" or "2", then 3rd gear emergency mode is activated.
If the malfunction occurs in "1","P", "N" or "R" then the emergency running mode for that stage is activated.
If the engine is started again in the emergency running mode and the malfunction occurs when selector lever is in position "D", "3" or "2" then 3rd gear is activated hydraulically, until the malfunction is repaired.
For malfunctions which can lead to emergency running, the transmission will remain in emergency running mode; until the malfunction is no longer recognized by the control module over a predetermined period.
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.
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.
Rather have a pro handle this?
A certified mobile mechanic comes to your home or office. They bring the tools, you stay comfortable. No tow truck, no waiting room, no surprises.
No obligation. See pricing before you book.