Smart Headlamp Control Module for Toyota ?

Why you need it

This OEM electronic unit commands the right or left headlight on premium Toyota sedans. It keeps low/high beam stable, powers HID/LED start-up, runs auto‑leveling and AFS swivel, and talks to the body ECU. With a healthy module you get bright, even light, legal beam aim, and no glare to oncoming traffic—vital for safe night driving and inspection approval.

How it works ⚙️

The controller reads CAN signals from the steering, suspension height sensors, and light switch. It drives the ballast/LED driver, actuates the shutter for high/low, and trims beam height by PWM to the level motor. Self‑diagnostics watch temperature and current; any fault sets DTCs and a warning on the dash. The sealed housing resists heat and moisture for long life.

If it’s broken ❗

Typical signs are one lamp dark, flicker at start, stuck low/high, AFS or leveling warning, or blown fuses. Night range drops, glare increases, and bulbs/LEDs can overheat. Water intrusion or shorted wiring often kills the unit; replacement restores full brightness and stable beam. Always match RH/LH, check grounds, clear codes, and re‑initialize leveling after install.

Compatibility

• Century
• Crown
• Majesta