Terminals Of ECM

WARNING: This page is about a different car, the 2007 Lexus GX 470. However, it is still accessible from the selected car via links, so may be relevant.

CHECK ECM

Fig 1: Identifying ECM Connector Terminals

ECU CONNECTOR TERMINALS AND SYMBOL DESCRIPTION

Symbols (Terminals No.)	Wiring Color	Condition	Specified Condition
TC-E1 (E9-23 - E7-1)	P-L - BR	Ignition switch ON	10 to 14 V
TC-E1 (E9-23 - E7-1)	P-L - BR	Ignition switch ON Connect terminals TC and CG of DLC3	Below 2 V
ST1-E1 (E9-16-E7-1)	R-L - BR	Ignition switch ON Depress brake pedal	Below 1 V
ST1-E1 (E9-16-E7-1)	R-L - BR	Ignition switch ON Release brake pedal	10 to 14 V
P1-E1 (E8-18-E7-1)	LG-BR	Ignition switch ON Cruise control main switch ON	0 to 3 V
P1-E1 (E8-18-E7-1)	LG-BR	Ignition switch ON Cruise control main switch OFF	9 to 14 V
STP - E1 E9-15 - E7-1)	G-Y - BR	Ignition switch ON Depress brake pedal	10 to 14 V
STP - E1 E9-15 - E7-1)	G-Y - BR	Ignition switch ON Release brake pedal	Below 1 V
CCS - E1 (E8-2 - E7-1)	L-B - BR	Ignition switch ON	9 to 14 V
		Ignition switch ON CANCEL switch hold ON	6 to 10.1 V
		Ignition switch ON -/SET switch hold ON	4 to 7.1 V
		Ignition switch ON +/RES switch hold ON	2.1 to 4 V
		Ignition switch ON MAIN switch hold ON	Below 1 V