Toyota Yaris: Stop And Start System / Diagnosis System

Toyota Yaris XP210 (2020-2026) Reapir and Service Manual / Engine & Hybrid System / Stop And Start / Stop And Start System / Diagnosis System

DIAGNOSIS SYSTEM

DESCRIPTION

When troubleshooting a vehicle with a diagnosis system, the only difference from the usual troubleshooting procedure is connecting the GTS to the vehicle and reading various data output from the engine stop and start ECU.

The engine stop and start ECU records DTCs when it detects a malfunction in itself or in its circuits.

To check for DTCs, connect the GTS to the DLC3 on the vehicle. The GTS can be used to clear the DTCs, activate various actuators, and check the Freeze Frame Data and Data List.

AUXILIARY BATTERY VOLTAGE

Standard Voltage:

11 to 14 V

If voltage is below 11 V, recharge or replace the auxiliary battery.

CHECK DLC3 (Data Link Connector 3)

(a) Check the DLC3.

Click here

FREEZE FRAME DATA

The ECU records vehicle and driving condition information as freeze frame data the moment a DTC is stored. When troubleshooting, freeze frame data can be helpful in determining whether the vehicle was moving or stationary, whether the engine was warmed up or not, as well as other data recorded at the time of a malfunction.

Terminals Of Ecu

TERMINALS OF ECU ENGINE STOP AND START ECU (a) Disconnect the engine stop and start ECU connectors. (b) Measure the resistance and voltage according to the value(s) in the table below...

Dtc Check / Clear

DTC CHECK / CLEAR HINT: DTCs, which are stored in the engine stop and start ECU, can be displayed on the GTS. The GTS can display confirmed and pending DTCs...

Other information:

Toyota Yaris XP210 (2020-2026) Reapir and Service Manual: Glossary Of Sae And Toyota Terms

GLOSSARY OF SAE AND TOYOTA TERMS This glossary lists all SAE-J1930 terms and abbreviations used in this manual in compliance with SAE recommendations, as well as their TOYOTA equivalents. SAE Abbreviation SAE Term TOYOTA Term ( )-Abbreviation A/C Air Conditioning Air Conditioner ACL Air Cleaner Air Cleaner, A/CL AIR Secondary Air Injection Air Injection (AI) AP Accelerator Pedal - B+ Battery Positive Voltage +B, Battery Voltage BARO Barometric Pressure HAC CAC Charge Air Cooler Intercooler CARB Carburetor Carburetor CFI Continuous Fuel Injection - CKP Crankshaft Position Crank Angle CL Closed Loop Closed Loop CMP Camshaft Position Cam Angle CPP Clutch Pedal Position - CTOX Continuous Trap Oxidizer - CTP Closed Throttle Position LL ON, Idle ON DFI Direct Fuel Injection Direct Injection (DI...

Toyota Yaris XP210 (2020-2026) Reapir and Service Manual: Speedometer Malfunction

DESCRIPTION The combination meter assembly receives vehicle speed signals from the skid control ECU (brake actuator assembly) via CAN communication. The speed sensor detects the wheel speed and sends the appropriate signals to the skid control ECU (brake actuator assembly)...