Toyota Celica Map Light Bulb Size

The Toyota Celica map light uses DE3175 and DE3423 bulb sizes depending on the specific version of the lighting component. Data for the provided bulb specifications covers the range from 1995 to 2002.

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
1999-2002	DE3175
1997-1998	DE3423
1996	DE3175
1995	DE3423

Bulb Specifications

Description	Bulb Size
ANSI standard (US & Canada). Festoon bulb, 31mm length, end-cap contacts. 12V.	DE3175
ANSI standard (US & Canada). Festoon bulb, 41mm length, end-cap contacts. 12V.	DE3423

Other Locations

Additional Notes

The Toyota Celica map light specifications cover model years 1995-2002 and reference two festoon-type bulbs: the DE3175 and the DE3423.
Both the DE3175 and DE3423 are ANSI-standardized festoon bulbs rated at 12V, designed for the North American market (US and Canada), and use end-cap contacts rather than pin or wedge bases.
A festoon bulb is a cylindrical lamp that seats horizontally between two spring-loaded contacts at each end of a dome or map light housing, with the end-cap contacts providing the electrical connection.
The DE3175 is 31mm in length, while the DE3423 is 41mm in length. These two bulbs are not interchangeable due to this difference in physical size.
The Toyota Celica (1999-2002) uses the DE3175 across all four of those model years, making it the more frequently specified of the two bulbs across the listed range.
The DE3423 is specified for the 1995, 1997, and 1998 Celica, while the 1996 model year returns to the shorter DE3175, indicating that the two bulb sizes were used in alternating years during part of this period.
Installing a DE3423 in a housing designed for the DE3175 would result in a fitment failure, as the longer 41mm bulb cannot seat correctly in a 31mm festoon socket.