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 264 (BODY CONTROL SYSTEMS - DIAGNOSTICS)PROBLEM SYMPTOMSWIRELESS DOOR LOCK CONTROL
2004 Toyota Celica GT, Standard
Wireless Door Lock Control
2004 Toyota Celica GT, StandardSECTION Wireless Door Lock Control
WARNING: This page is about a different car, the 2002 Toyota Sequoia. However, it is still accessible from the selected car via links, so may be relevant.
WIRELESS DOOR LOCK CONTROL SYSTEM
| Symptom/Suspect Area | See | |||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| All Functions Of Wireless Door Lock Control System Do Not Operate | ||||||||||||||||||||||
| Transmitter | (1) | |||||||||||||||||||||
| Wireless Tuner Circuit | (2) | |||||||||||||||||||||
| Key Unlock Warning Switch Circuit | (3) | |||||||||||||||||||||
| Body ECU | (4) | |||||||||||||||||||||
| Lock (Or Unlock) Function Does Not Operate | ||||||||||||||||||||||
| Door Unlock Detection Switch (Driver's) | (5) | |||||||||||||||||||||
| Door Unlock Detection Switch (Passenger's) | (6) | |||||||||||||||||||||
| Door Unlock Detection Switch (Rear Door) | (7) | |||||||||||||||||||||
| Door Unlock Detection Switch (Back Door) | (8) | |||||||||||||||||||||
| Any Door ECU | (4) | |||||||||||||||||||||
| Body ECU | (4) | |||||||||||||||||||||
| Automatic Lock Function Operates Even If Any Door Is Opened Within 30 Seconds After All Doors Are Unlocked By Wireless Door Lock Control System | ||||||||||||||||||||||
| Door Courtesy Switch | (9) | |||||||||||||||||||||
| Any Door ECU | (4) | |||||||||||||||||||||
| Body ECU | (4) | |||||||||||||||||||||
| Wireless Door Lock Operates, But Buzzer Does Not Sound | ||||||||||||||||||||||
| Wireless Door Lock Buzzer Circuit | (10) | |||||||||||||||||||||
| Body ECU | (4) | |||||||||||||||||||||
| Buzzer Sound, But Wireless Door Lock Function Does Not Operate | ||||||||||||||||||||||
| Body ECU | (4) | |||||||||||||||||||||
|
||||||||||||||||||||||
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.