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.
SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSTOYOTA2004CELICA GT, STANDARDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 127 (ANTI-THEFT SYSTEMS)TROUBLE SHOOTINGSYSTEM OPERATION CHECK
2004 Toyota Celica GT, Standard
System Operation Check
2004 Toyota Celica GT, StandardSECTION System Operation Check
WARNING: This page is about a different car, the 2003 Lexus ES 300 and 2002 Lexus ES 300. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
Trouble shooting of the anti-theft system is based on the premise that the door lock control system is operating normally. Accordingly, before trouble shooting the anti-theft system, first make certain that the door lock control system is operating normally. If the power door locks do not function properly, repair doors locks. See POWER DOOR LOCKS, TRUNK LID & FUEL DOOR RELEASE
article.
- Trouble shooting of an anti-theft system complaint begins with verification of the customer problem. Perform customer problem analysis check (anti-theft system). See Fig 1.
- Confirm problem symptom by performing the following steps. Open all the windows.
- Set the anti-theft system. See SETTING (ARMING) ANTI-THEFT SYSTEM under PROGRAMMING. The front doors should be locked with the ignition key or wireless remote control. Be sure to wait until the indicator light starts flashing.
- Unlock one of the doors from the inside. The system should activate the alarm.
- Unlock any of the doors with a key or the wireless remote control to cancel the system.
- Repeat this operation for the other doors and hood. When testing the hood, also check that the system is activated when the battery terminal is disconnected and then reconnected.
- If symptom does not occur, try to simulate the symptom. If the symptom occurs, go to ANTI-THEFT SYMPTOM INDEX table under SYSTEM TESTS.
RENDER: 1.0x
NO RELATED
Recommended Tools & Savings
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra 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.