Toyota Echo Trunk Bulb Size

The Toyota Echo trunk utilizes a 194 bulb size for illumination purposes within the rear storage area of the vehicle. Data for the specified component covers the period from 2000 through 2005.

The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.

Bulb Size by Year Range

Years	Bulb Size
2000-2005	194

Bulb Specifications

Description	Bulb Size
ANSI standard (US & Canada). Miniature wedge bulb (T10). 12V, 3.78W.	194

Other Locations

Additional Notes

The Toyota Echo uses the 194 bulb for the trunk across all listed model years, 2000-2005.
The 194 is an ANSI-standardized bulb type recognized in both the United States and Canada, which reflects a widely adopted specification in North American automotive applications.
This bulb follows the T10 miniature wedge form factor, a base style that relies on two angled plastic fins to friction-fit into a compatible socket rather than using a bayonet or screw mechanism.
The 194 operates at 12 volts and draws 3.78 watts, placing it among the lower-wattage bulbs found in automotive interiors, consistent with its use in a low-demand trunk lighting application.
Because the 194 uses a wedge base, fitment depends on socket compatibility with the T10 form factor. Substituting a bulb with a different base type would not be physically compatible with the factory socket.