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

Toyota Yaris XP210 (2020-2022) 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

  • 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

  • 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

  • Ignition switch ON
  • AWD control switch (No. 2 combination switch assembly) not held in operation position

11 to 14 V

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    Other information:

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    Categories

    Turning the Engine Off

    Stop the vehicle completely. Manual transaxle: Shift into neutral and set the parking brake.

    Automatic transaxle: Shift the selector lever to the P position and set the parking brake.

    Press the push button start to turn off the engine. The ignition position is off.

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