Toyota Yaris: Active Torque Split Awd System / Terminals Of Ecu

Toyota Yaris XP210 (2020-2026) Reapir and Service Manual / Drivetrain / Gf1a (transfer / 4wd / Awd) / Active Torque Split Awd System / Terminals Of Ecu

TERMINALS OF ECU

CHECK AWD ECU ASSEMBLY

(a) Measure the voltage and resistance of the connector.

Terminal No. (Symbol)	Terminal Description	Condition	Specified Condition
O119-1 (GND) - Body ground	Ground	Always	Below 1 Ω
O119-2 (BSLC) - O119-1 (GND)	AWD ECU assembly power supply	Always	11 to 14 V
O119-13 (T1H) - O119-1 (GND)	Temperature sensor (+) input	Ignition switch ON	0.5 to 4.5 V
O119-21 (T1L) - O119-1 (GND)	Temperature sensor (-) input	Ignition switch ON	0.5 to 4.5 V
O119-24 (IG1) - O119-1 (GND)	AWD ECU assembly power supply input	Ignition switch ON	11 to 14 V
O120-3 (SLC-) - O119-1 (GND)	AWD linear solenoid (transmission coupling assembly) (-) output	Ignition switch ON	Below 0.5 V
O120-4 (SLC+) - O119-1 (GND)	AWD linear solenoid (transmission coupling assembly) (+) output	Ignition switch ON	Below 0.5 V
O120-17 (CANH) - O120-26 (CANL)	CAN communication line	Ignition switch off	54 to 69 Ω

CHECK ECM

HINT:

The standard voltage, resistance and waveform between each pair of the ECM terminals is shown in the table below.

The appropriate conditions for checking each pair of the terminals are also indicated. The result of checks should be compared with the standard voltage, resistance and waveform for each pair of the terminals as displayed in the Specified Condition column. The illustration above can be used as a reference to identify the ECM terminal locations.

(a) Measure the voltage and resistance of the connector.

Terminal No. (Symbol)	Terminal Description	Condition	Specified Condition
A106-10 (E1) - Body ground	Ground	Always	Below 1 Ω
A106-31 (PWMS) - A106-10 (E1)	SPORT mode switch input	Ignition switch ON AWD control switch (No. 2 combination switch assembly) held in operation position	4.5 to 5.5 V
A106-31 (PWMS) - A106-10 (E1)	SPORT mode switch input	Ignition switch ON AWD control switch (No. 2 combination switch assembly) not held in operation position	11 to 14 V
A106-24 (TRMS) - A106-10 (E1)	TRACK mode switch input	Ignition switch ON AWD control switch (No. 2 combination switch assembly) held in operation position	4.5 to 5.5 V
A106-24 (TRMS) - A106-10 (E1)	TRACK mode switch input	Ignition switch ON AWD control switch (No. 2 combination switch assembly) not held in operation position	11 to 14 V
A106-51 (SPCN) - A106-10 (E1)	NORMAL mode switch input	Ignition switch ON AWD control switch (No. 2 combination switch assembly) held in operation position	4.5 to 5.5 V
A106-51 (SPCN) - A106-10 (E1)	NORMAL mode switch input	Ignition switch ON AWD control switch (No. 2 combination switch assembly) not held in operation position	11 to 14 V

Dtc Check / Clear

DTC CHECK / CLEAR DTC CHECK (a) Check for DTC(s). Chassis > Four Wheel Drive > Trouble Codes (b) Check the details of the DTCs. NOTICE: Make sure to clear the DTCs after repair...

Freeze Frame Data

FREEZE FRAME DATA FREEZE FRAME DATA (a) When a DTC is stored, the AWD ECU assembly stores the current vehicle state as Freeze Frame Data. HINT: Freeze Frame Data at the time a DTC is stored: When the AWD ECU assembly stores data at the time a DTC is stored, no updates will be performed until the data is cleared...

Other information:

Toyota Yaris XP210 (2020-2026) Reapir and Service Manual: Engine Stop and Start ECU Communication Stop Mode

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