Terminals Of ECM

WARNING: This page is about a different car, the 2008 Toyota RAV4. However, it is still accessible from the selected car via links, so may be relevant.

CHECK ECM

Fig 1: Identifying Terminals Of ECM

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Disconnect the A9 and B30 connectors.

Measure the voltage and resistance of the wire harness side connectors.

ECM VOLTAGE AND RESISTANCE

Symbols (Terminal No.)	Wiring Color	Terminal Description	Condition	Specified Condition
A9-36 (STP) - B30-104 (E1) 1 A9-36 (STP) - B30-81 (E1) 2	L - BR	Stop light switch input signal	Depress brake pedal	10 to 14 V
A9-36 (STP) - B30-104 (E1) 1 A9-36 (STP) - B30-81 (E1) 2	L - BR	Stop light switch input signal	Release brake pedal	Below 1 V
A9-40 (CCS) - B30-104 (E1) 1 A9-40 (CCS) - B30-81 (E1) 2	L - BR	Cruise control main switch signal	CANCEL switch hold ON	1.386 to 1,694 Ω
			-/SET switch hold ON	567 to 693 Ω
			+/RES switch hold ON	216 to 264 Ω
			Main switch OFF	10 kΩ or higher
			Main switch ON	Below 1 Ω
A9-35 (ST1-) - B30-104 (E1) 1 A9-35 (ST1-) - B30-81 (E1) 2	GR - BR	Stop light switch input signal	Release brake pedal	10 to 14 V
	GR - BR	Stop light switch input signal	Depress brake pedal	Below 1 V
1 : 2AZ-FE 2 : 2GR-FE

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