Terminals Of Ecu

CLOCK

Fig 1: Identifying ECU Terminals

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Measure the voltage of the wire harness side connector.

Standard voltage:

STANDARD VOLTAGE SPECIFICATIONS

Terminal No. (Symbol)	Wiring Color	Terminal Description	Condition	Specified Condition
F17-5 (ILL+) - Body ground	R - Body ground	Illumination Signal	Combination switch OFF	Below 1 V
			Combination switch TAIL	11 to 14 V
			Combination switch HEAD	11 to 14 V
F17-3 (ACC) - Body ground	V - Body ground	Ignition Switch Signal	Ignition switch to OFF	Below 1 V
F17-3 (ACC) - Body ground	V - Body ground	Ignition Switch Signal	Ignition switch to ON	11 to 14 V
F17-2 (IG+) - Body ground	Y - Body ground	Ignition Switch Signal	Ignition switch to OFF	Below 1 V
F17-2 (IG+) - Body ground	Y - Body ground	Ignition Switch Signal	Ignition switch to ON	11 to 14 V
F17-12 (E) - Body ground	W-B - Body ground	Ground	Always	Below 1 Ω
F17-1 (B) - Body ground	B - Body ground	Battery	Always	11 to 14 V

If the result is not as specified, there may be a malfunction on the wire harness side.