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.
2005 Suzuki Aerio L4-2.3LFACTORY OEM SERVICE PROCEDURE
Keyless Entry Transmitter: Testing and Inspection
Programming Transmitter Code
NOTE:
- Three transmitter codes can be programmed at the same time.
- When fourth transmitter code is programmed, the oldest one will be cleared automatically.
If transmitter / door lock controller is replaced with a new one or additional transmitter(s) is necessary, program transmitter code(s).
1. Confirm that all doors are closed and ignition key is out of ignition key cylinder
2. Open driver side door.
3. Turn ignition switch to ON position, and then drawn ignition key from ignition key cylinder within 10 seconds after that.
4. Push and release driver side door switch (1) at 3 times by hand within 20 seconds after removing ignition key from ignition key cylinder.
5. Turn ignition switch to ON position, and then drawn ignition key from ignition key cylinder within 10 seconds after that.
6. Confirm that all doors are operated from lock to unlock. With this, registration mode.
7. Push "UNLOCK " button (2) on transmitter (3) and confirm that all doors are operated from lock to unlock. With this, code registration is completed.
8. If you want to program the additional transmitter, repeat the procedure from Step 1 through Step 7.
9. Make sure that keyless entry system properly operates by operating programmed transmitter(s).
NOTE:
- Three transmitter codes can be programmed at the same time.
- When fourth transmitter code is programmed, the oldest one will be cleared automatically.
If transmitter / door lock controller is replaced with a new one or additional transmitter(s) is necessary, program transmitter code(s).
1. Confirm that all doors are closed and ignition key is out of ignition key cylinder
2. Open driver side door.
3. Turn ignition switch to ON position, and then drawn ignition key from ignition key cylinder within 10 seconds after that.
4. Push and release driver side door switch (1) at 3 times by hand within 20 seconds after removing ignition key from ignition key cylinder.
5. Turn ignition switch to ON position, and then drawn ignition key from ignition key cylinder within 10 seconds after that.
6. Confirm that all doors are operated from lock to unlock. With this, registration mode.
7. Push "UNLOCK " button (2) on transmitter (3) and confirm that all doors are operated from lock to unlock. With this, code registration is completed.
8. If you want to program the additional transmitter, repeat the procedure from Step 1 through Step 7.
9. Make sure that keyless entry system properly operates by operating programmed transmitter(s).
Factory Service Tools
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.