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.
Key Lock-In Prevention Function Does Not Work Properly
2006 Scion xB L4-1.5L (1NZ-FE)SECTION Key Lock-In Prevention Function Does Not Work Properly
Key Lock-in Prevention Function does not Work Properly
DESCRIPTION
To prevent the key from being locked in the vehicle, the door control relay assembly prevents doors from being locked by monitoring 2 switches: 1) the unlock warning switch, which turns ON when the key is inserted into the ignition key cylinder; and 2) the front door courtesy light switch assembly (driver side), which turns ON when the driver side door is opened.
INSPECTION PROCEDURE
DESCRIPTION
To prevent the key from being locked in the vehicle, the door control relay assembly prevents doors from being locked by monitoring 2 switches: 1) the unlock warning switch, which turns ON when the key is inserted into the ignition key cylinder; and 2) the front door courtesy light switch assembly (driver side), which turns ON when the driver side door is opened.
Wiring Diagram:
Step 1-2:
Step 3-4:
INSPECTION PROCEDURE
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.