Terminals Of ECM

CHECK ECM

Fig 1: ECM Connector Terminal Identification

GTY167120

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Disconnect the A21 and C19 ECU connectors.
Measure the voltage and resistance according to the value(s) in the table below.

Terminal No. (Symbol)	Wiring Color	Terminal Description	Condition	Specified Condition
A21-27 (TC) - C19-104 (E1)	P - W	Ground	Ignition switch ON	11 to 14 V
A21-27 (TC) - C19-104 (E1)	P - W	Ground	Connect terminals TC and CG of DLC3	Below 1 V
A21-36 (STP) - C19-104 (E1)	G - W	Stop light signal	Ignition switch ON, Depress brake pedal	11 to 14 V
A21-36 (STP) - C19-104 (E1)	G - W	Stop light signal	Ignition switch ON, Release brake pedal	Below 1 Ω
A21-40 (CCS) - C19-104 (E1)	L - W	Cruise control main switch circuit	Cruise control switch OFF	10 kΩ or higher
A21-40 (CCS) - C19-104 (E1)	L - W	Cruise control main switch circuit	Cruise control switch ON	Below 1 Ω
A21-40 (CCS) - C19-104 (E1)	L - W	Cruise control main switch circuit	CANCEL switch ON	1386 to 1694 Ω
A21-40 (CCS) - C19-104 (E1)	L - W	Cruise control main switch circuit	-/SET switch ON	567 to 693 Ω
A21-40 (CCS) - C19-104 (E1)	L - W	Cruise control main switch circuit	+/RES switch ON	216 to 264 Ω
A21-35 (ST1-) - C19-104 (E1)	Y - W	Stop light signal	Ignition switch ON, Depress brake pedal	Below 1 V
A21-35 (ST1-) - C19-104 (E1)	Y - W	Stop light signal	Ignition switch ON, Release brake pedal	11 to 14 V
C19-56 (D) - C19-104 (E1)*1	L - W	Clutch signal	Ignition switch ON, Depress clutch pedal	Below 1 V
C19-56 (D) - C19-104 (E1)*1	L - W	Clutch signal	Ignition switch ON, Release clutch pedal	11 to 14 V
C19-56 (D) - C19-104 (E1)*2	L - W	D shift position switch signal	Ignition switch ON, Shift lever not on D	Below 1 V
C19-56 (D) - C19-104 (E1)*2	L - W	D shift position switch signal	Ignition switch ON, Shift lever on D	11 to 14 V

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

HINT:

*1: for Manual Transaxle
*2: for Automatic Transaxle