October 30: LEMON manuals on a temporary server, it is slow and having issues, download the manuals you need! Later in November we will switch back to the fast server.

Terminals Of ECM

CHECK ECM

Fig 1: Identifying ECM Connector Terminal

G04438474

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Measure the voltage of the connectors.

ECM TERMINAL REFERENCE TABLE

Symbols (Terminal No.)	Wiring Color	Terminal Description	Condition	Specified Condition
STP (E9-15) - E1 (E7-1)	G-W - BR	Stop light switch input signal	Depress brake pedal	10 to 14 V
STP (E9-15) - E1 (E7-1)	G-W - BR	Stop light switch input signal	Release brake pedal	Below 1 V
CCS (E8-2) - E1 (E7-1)	L - BR	Cruise control main switch signal	Ignition switch ON	10 to 14 V
			Ignition switch ON CANCEL switch hold ON	6.6 to 10.1 V
			Ignition switch ON -/SET switch hold ON	4.5 to 7.1 V
			Ignition switch ON +/RES switch hold ON	2.3 to 4 V
			Ignition switch ON Main switch OFF	Below 1 V
			Ignition switch ON Main switch ON	10 to 14 V
ST1- (E9-16) - E1 (E7-1)	R-G - BR	Cruise cancel input signal	Depress brake pedal	Below 1 V
ST1- (E9-16) - E1 (E7-1)	R-G - BR	Cruise cancel input signal	Release brake pedal	10 to 14 V

If the result is not as specified, the ECM may have a malfunction.