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.
2012 Acura TL BaseFACTORY OEM SERVICE PROCEDURE
Transmission Range Switch Test
- Remove the air cleaner (see THROTTLE BODY CLEANING ).
- Disconnect the transmission range switch connector.
- Check for continuity between the terminals at the transmission range switch connector. There should be continuity between the terminals in the following table for each transmission range switch position.
Transmission Range Switch Connector
- The transmission range switch test is finished if the test results are OK. Reinstall all removed components. If there is no continuity between any terminals, check the transmission range switch installation. If the switch installation is OK, replace the switch (see TRANSMISSION RANGE SWITCH REPLACEMENT ).
- Install the air cleaner (see THROTTLE BODY CLEANING ).
Factory Service Tools
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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.