Toyota Yaris: Stop And Start System / Problem Symptoms Table

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

PROBLEM SYMPTOMS TABLE

Stop and Start System

Symptom	Suspected Area	Link
Stop and start system does not operate	Refer to "Stop and Start System does not Operate"
Stop and start system does not operate	Refer to "Stop and Start System does not Operate (Battery Condition)"
Restarting after a short period of time from an idling stop	Refer to "Restarting after a Short Period of Time from an Idling Stop"
After engine stops due to stop and start system, engine does not restart	Refer to "After Engine Stops due to Stop and Start System, Engine does not Restart"
Failure to restart from IG-ON engine stall	Refer to "Failure to Restart from IG-ON Engine Stall"
Stop and start cancel indicator does not operate	Combination meter assembly
	Indicator circuit (CAN communication system)
	Engine stop and start ECU
Stop and start indicator does not operate	Combination meter assembly
	Indicator circuit (CAN communication system)
	Engine stop and start ECU
Stop and start control cannot be canceled	ECAN terminal voltage
Stop and start control cannot be canceled	Stop and start cancel switch circuit
Multi-information display screen does not change after pressing steering pad switch assembly.	Stop and start priority control system
Multi-information display screen changes without pressing steering pad switch assembly.	Stop and start priority control system
Multi-information display screen does not change but control mode changes.	Stop and start priority control system
Multi-information display screen changes but control mode does not change.	Stop and start priority control system
Control mode returns to default mode after turning ignition switch to ON	Stop and start priority control system

Registration

REGISTRATION PROCEDURE 1. ECU EXCHANGE NOTICE: When replacing the engine stop and start ECU, make sure to download the number of starter operations (step 1)...

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...

Other information:

Toyota Yaris XP210 (2020-2026) Reapir and Service Manual: IG Circuit Short to Ground (B227111)

DESCRIPTION This DTC is stored when a malfunction in the IG circuit or IG hold circuit of the certification ECU (smart key ECU assembly) is detected. DTC No. Detection Item DTC Detection Condition Trouble Area Note B227111 IG Circuit Short to Ground When either of the following conditions is met (1-trip detection logic*1): The IG circuit of the certification ECU (smart key ECU assembly) is malfunctioning...

Toyota Yaris XP210 (2020-2026) Reapir and Service Manual: Recirculated/Fresh Air Modes Switch without User Input

DESCRIPTION If recirculation/fresh mode changes unintentionally and without permission, the following causes are possible. Symptom Factor Recirculation/fresh mode changes without permission Recirculation/fresh mode light blinks Customize setting Change in ambient air temperature Decrease in refrigerant pressure Air conditioner pressure sensor circuit malfunction Engine coolant temperature (high) PROCEDURE 1...