Toyota Yaris: Vehicle Stability Control System / Terminals Of Ecu
TERMINALS OF ECU
TERMINALS OF ECU
| *a | Component without harness connected (Skid Control ECU [Brake Actuator Assembly]) | - | - |
| Terminal No. (Symbol) | Terminal Description |
|---|---|
| 1 (GND2) | Pump motor ground |
| 2 | - (Not used) |
| 3 | - (Not used) |
| 4 | - (Not used) |
| 5 (STP2) | Stop light switch assembly input |
| 6 | - (Not used) |
| 7 | - (Not used) |
| 8 | - (Not used) |
| 9 | - (Not used) |
| 10 (CANL) | CAN communication line L |
| 11 | - (Not used) |
| 12 (IGR) | ECU power supply input |
| 13 (BM) | Motor relay power supply |
| 14 (SP1) | Speed signal output for speedometer |
| 15 (RR-) | Rear wheel speed RH (-) signal input |
| 16 (RR+) | Rear wheel speed RH (+) power supply output |
| 17 (FL-) | Front wheel speed LH (-) signal input |
| 18 (FL+) | Front wheel speed LH (+) power supply output |
| 19 | - (Not used) |
| 20 | - (Not used) |
| 21 | - (Not used) |
| 22 (CANH) | CAN communication line H |
| 23 | - (Not used) |
| 24 | - (Not used) |
| 25 (GND1) | Skid control ECU (brake actuator assembly) ground |
| 26 (STPO) | Stop light switch assembly output |
| 27 | - (Not used) |
| 28 (RL-) | Rear wheel speed LH (-) signal input |
| 29 (RL+) | Rear wheel speed LH (+) power supply output |
| 30 (FR-) | Front wheel speed RH (-) signal input |
| 31 (FR+) | Front wheel speed RH (+) power supply output |
| 32 | - (Not used) |
| 33 (CSW) | VSC OFF switch (combination switch assembly) input |
| 34 | - (Not used) |
| 35 (STP) | Stop light switch assembly input |
| 36 (CA2H) | CAN communication line H |
| 37 (CA2L) | CAN communication line L |
| 38 (+BS) | Solenoid relay power supply |
TERMINAL INSPECTION
(a) Disconnect the A108 connector and measure the voltage or resistance on the wire harness side.
| *a | Front view of wire harness connector (to Skid Control ECU [Brake Actuator Assembly]) | - | - |
HINT:
Voltage cannot be measured with the connector connected to the skid control ECU (brake actuator assembly) as the connector is watertight.
| Terminal No. (Symbol) | Terminal Description | Condition | Specified Condition |
|---|---|---|---|
| A108-1 (GND2) - Body ground | Pump motor ground | Always | Below 1 Ω |
| A108-5 (STP2) - Body ground | Stop light switch assembly input | Brake pedal depressed → released | 8 to 14 V → Below 1.5 V |
| A108-12 (IGR) - Body ground | ECU power supply input | Ignition switch ON | 10.5 to 16 V |
| A108-13 (BM) - Body ground | Motor relay power supply | Always | 11 to 14 V |
| A108-14 (SP1) - Body ground | Speed signal output for speedometer | Ignition switch ON | 11 to 14 V |
| A108-25 (GND1) - Body ground | Skid control ECU (brake actuator assembly) ground | Always | Below 1 Ω |
| A108-26 (STPO) - Body ground | Stop light switch assembly output | Ignition switch ON | 11 to 14 V |
| A108-33 (CSW) - Body ground | VSC OFF switch (combination switch assembly) input | VSC OFF switch (combination switch assembly) pressed and held → released | Below 1 Ω → 10 kΩ or higher |
| A108-35 (STP) - Body ground | Stop light switch assembly input | Stop light switch assembly on → off (Brake pedal depressed → released) | 8 to 14 V → Below 1.5 V |
| A108-38 (+BS) - Body ground | Solenoid relay power supply | Always | 11 to 14 V |
Diagnosis System
DIAGNOSIS SYSTEM DESCRIPTION When troubleshooting a vehicle with the diagnosis system, the only difference from the usual troubleshooting procedure is connecting the GTS to the vehicle and reading various data output from the vehicle's skid control ECU (brake actuator assembly)...
Dtc Check / Clear
DTC CHECK / CLEAR DTC CHECK (a) Operate the GTS to read the DTCs. Chassis > Brake > Trouble Codes (b) Check the details of the DTCs. NOTICE:
Make sure to clear the DTCs after repair...
Other information:
Toyota Yaris XP210 (2020-2024) Reapir and Service Manual: Instrument Panel Illumination does not Turn On
DESCRIPTION The power distribution box assembly controls the instrument panel illuminations. WIRING DIAGRAM CAUTION / NOTICE / HINT NOTICE: Inspect the fuses for circuits related to this system before performing the following procedure. Before replacing the main body ECU (multiplex network body ECU), refer to Registration...
Toyota Yaris XP210 (2020-2024) Reapir and Service Manual: Taillight Relay Circuit
DESCRIPTION The main body ECU (multiplex network body ECU) controls the, taillight and license plate light. WIRING DIAGRAM CAUTION / NOTICE / HINT NOTICE: First perform the communication function inspections in How to Proceed with Troubleshooting to confirm that there are no CAN communication malfunctions before troubleshooting this symptom...
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Fuel-Filler Lid and Cap
WARNING
When removing the fuel-filler cap, loosen the cap slightly and wait for any hissing to stop, then remove it
Fuel spray is dangerous. Fuel can burn skin and eyes and cause illness if ingested. Fuel spray is released when there is pressure in the fuel tank and the fuel-filler cap is removed too quickly.
