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.
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HOMESERVICE MANUALSACURA2008TSX L4-2.4LREPAIR AND DIAGNOSISBODY AND FRAMELOCKSKEYLESS ENTRYTESTING AND INSPECTIONTRANSMITTER TEST
2008 Acura TSX L4-2.4L
Transmitter Test
2008 Acura TSX L4-2.4LSECTION Transmitter Test
Transmitter Test
NOTE:
- If the doors unlock or lock with the transmitter, but the LED on the transmitter does not come on, the LED is faulty; replace the transmitter.
- If any door is open, you cannot lock the doors with the transmitter.
- If the U N LOCK button is pressed on the transmitter and a door is not opened within 30 seconds, the doors relock automatically.
- The doors do not lock or unlock with the transmitter if the key is in the ignition switch.
1. Do a transmitter test using the HDS by selecting the KEYLESS INSPECTION MENU.
2. Press the lock or unlock button five or six times to reset the transmitter.
- If the locks work, the transmitter is OK.
- If the locks don't work, go to step 3.
3. Open the transmitter and check for water damage.
- If you find any water damage, replace the transmitter.
- If there is no water damage, go to step 4.
4. Replace the transmitter battery (A) with a new one, and try to lock and unlock the doors with the transmitter by pressing the lock or unlock button five or six times.
- If the doors lock and unlock, the transmitter is OK.
- If the doors don't lock and unlock, go to step 5.
5. Reprogram and register the transmitter, then try to lock and unlock the doors.
- If the doors lock and unlock, the transmitter is OK.
- If the doors don't lock and unlock, try and program to another vehicle. If still not operating, replace the transmitter.
NOTE:
- If the doors unlock or lock with the transmitter, but the LED on the transmitter does not come on, the LED is faulty; replace the transmitter.
- If any door is open, you cannot lock the doors with the transmitter.
- If the U N LOCK button is pressed on the transmitter and a door is not opened within 30 seconds, the doors relock automatically.
- The doors do not lock or unlock with the transmitter if the key is in the ignition switch.
1. Do a transmitter test using the HDS by selecting the KEYLESS INSPECTION MENU.
2. Press the lock or unlock button five or six times to reset the transmitter.
- If the locks work, the transmitter is OK.
- If the locks don't work, go to step 3.
3. Open the transmitter and check for water damage.
- If you find any water damage, replace the transmitter.
- If there is no water damage, go to step 4.
4. Replace the transmitter battery (A) with a new one, and try to lock and unlock the doors with the transmitter by pressing the lock or unlock button five or six times.
- If the doors lock and unlock, the transmitter is OK.
- If the doors don't lock and unlock, go to step 5.
5. Reprogram and register the transmitter, then try to lock and unlock the doors.
- If the doors lock and unlock, the transmitter is OK.
- If the doors don't lock and unlock, try and program to another vehicle. If still not operating, replace the transmitter.
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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.