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.
Problem Symptoms Table
2007 Lexus ES 350SECTION Problem Symptoms Table
POWER DOOR LOCK CONTROL SYSTEM:
PROBLEM SYMPTOMS REFERENCE
| Symptom | Suspected Area | See |
|---|---|---|
| All doors cannot be locked/unlocked simultaneously by neither door control switch nor door key cylinder | Power source circuit (Main body ECU) | TERMINALS OF ECU |
| Replace main body ECU (Instrument panel J/B) | - | |
| All doors cannot be locked/unlocked simultaneously by driver side door control switch | Replace multiplex network master switch | DOOR CONTROL SWITCH CIRCUIT |
| Replace main body ECU (Instrument panel J/B) | - | |
| All doors cannot be locked/unlocked simultaneously by front passenger side door control switch | Door control switch circuit (Front passenger side door) | DOOR CONTROL SWITCH CIRCUIT |
| Replace main body ECU (Instrument panel J/B) | - | |
| All doors cannot be locked/unlocked simultaneously by door key cylinder | Driver side door key lock and unlock switch circuit | DRIVER SIDE DOOR KEY LOCK AND UNLOCK SWITCH CIRCUIT |
| Multiplex network master switch assembly | TERMINALS OF ECU | |
| Replace main body ECU (Instrument panel J/B) | - | |
| Driver side door lock does not operate | Driver side door lock motor circuit | DRIVER SIDE DOOR LOCK MOTOR CIRCUIT |
| Replace main body ECU (Instrument panel J/B) | - | |
| Passenger side door lock does not operate | Front passenger side door lock motor circuit | FRONT PASSENGER SIDE DOOR LOCK MOTOR CIRCUIT |
| Replace main body ECU (Instrument panel J/B) | - | |
| Rear LH side door lock does not operate | Rear door lock motor LH circuit | REAR DOOR LOCK MOTOR LH CIRCUIT |
| Replace main body ECU (Instrument panel J/B) | - | |
| Rear RH side door lock does not operate | Rear door lock motor RH circuit | REAR DOOR LOCK MOTOR RH CIRCUIT |
| Replace main body ECU (Instrument panel J/B) | - | |
| Luggage compartment door unlock does not operate | Luggage compartment door lock circuit | LUGGAGE COMPARTMENT DOOR LOCK CIRCUIT |
| Luggage compartment door courtesy switch circuit | LUGGAGE COMPARTMENT DOOR COURTESY SWITCH CIRCUIT | |
| Replace main body ECU (Instrument panel J/B) | - | |
| Key lock-in prevention function does not work properly (manual operation and key-linked lock are active) | Door courtesy switch circuit (Driver side) | DOOR COURTESY SWITCH CIRCUIT |
| Smart access system with push-button start | PROBLEM SYMPTOMS TABLE | |
| Replace main body ECU (Instrument panel J/B) | - | |
| Shift-linked automatic door lock does not operate | CAN communication system | HOW TO PROCEED WITH TROUBLESHOOTING |
| Replace main body ECU (Instrument panel J/B) | - | |
| One or more doors cannot be locked/unlocked simultaneously (Wireless key operation) | Wireless door lock system | PROBLEM SYMPTOMS TABLE |
| Driver side door unlock detection switch circuit | DRIVER SIDE DOOR UNLOCK DETECTION SWITCH CIRCUIT | |
| Front-passenger door unlock detection switch circuit | FRONT PASSENGER SIDE DOOR UNLOCK DETECTION SWITCH CIRCUIT | |
| Rear door unlock detection switch LH circuit | REAR DOOR UNLOCK DETECTION SWITCH LH CIRCUIT | |
| Rear door unlock detection switch RH circuit | REAR DOOR UNLOCK DETECTION SWITCH RH CIRCUIT | |
| Replace main body ECU (Instrument panel J/B) | - | |
| One or more doors cannot be locked/unlocked simultaneously (Theft deterrent operation) | Theft deterrent system | PROBLEM SYMPTOMS TABLE |
| Driver side door unlock detection switch circuit | DRIVER SIDE DOOR UNLOCK DETECTION SWITCH CIRCUIT | |
| Front passenger door unlock detection switch circuit | FRONT PASSENGER SIDE DOOR UNLOCK DETECTION SWITCH CIRCUIT | |
| Rear door unlock detection switch LH circuit | REAR DOOR UNLOCK DETECTION SWITCH LH CIRCUIT | |
| Rear door unlock detection switch RH circuit | REAR DOOR UNLOCK DETECTION SWITCH RH CIRCUIT | |
| Replace main body ECU (Instrument panel J/B) | - |
RENDER: 1.0x
NO RELATED
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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.