Daytime Running Light Relay (Main)

NOTE: Manufacturer does not provide individual component testing for daytime running light relay (main), as only circuit testing for daytime running light relay (main) is available.

Ensure ignition is off. Disconnect 20-pin electrical connector at daytime running light relay (main). Daytime running light relay (main) is located near steering column and center of instrument panel. See Fig 1.
Note electrical terminal identification on electrical connector for daytime running light relay (main). See Fig 2. Using ohmmeter and voltmeter, perform circuit tests at specified terminals under specified conditions. See Fig 2. If any reading is not within specification, check wiring circuit as necessary. See WIRING DIAGRAMS in DAYTIME RUNNING LIGHTS article. If all readings are within specification, replace daytime running light relay (main).

Fig 1: Locating Daytime Running Light Relay (Main) & Various Other Components
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Fig 2: Identifying Electrical Terminals & Circuit Tests
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002