Toyota Yaris: Introduction / How To Troubleshoot Ecu Controlled Systems

Introduction

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General Information

GENERAL INFORMATION A large number of ECU controlled systems are used in this vehicle. In general, ECU controlled systems are considered to be very intricate, requiring a high level of technical knowledge to troubleshoot...

Other information:

Toyota Yaris XP210 (2020-2025) Reapir and Service Manual: Parts Location

PARTS LOCATION ILLUSTRATION *1 FORWARD RECOGNITION CAMERA *2 MILLIMETER WAVE RADAR SENSOR ASSEMBLY *3 BRAKE ACTUATOR ASSEMBLY - SKID CONTROL ECU *4 ECM ILLUSTRATION *1 POWER DISTRIBUTION BOX ASSEMBLY - ECU-IGR NO. 1 FUSE - ECU-IGR NO...

Toyota Yaris XP210 (2020-2025) Reapir and Service Manual: 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...