Toyota Yaris: Lighting System / Diagnosis System

Toyota Yaris XP210 (2020-2026) Reapir and Service Manual / Vehicle Interior / Lighting (int) / Lighting System / Diagnosis System

DIAGNOSIS SYSTEM

DESCRIPTION

(a) Lighting system data and Diagnostic Trouble Codes (DTCs) can be read from the Data Link Connector 3 (DLC3) of the vehicle. When the system seems to be malfunctioning, use the GTS to check for malfunctions and perform repairs.

CHECK DLC3

(a) Check the DLC3.

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INSPECT AUXILIARY BATTERY VOLTAGE

(a) Measure the auxiliary battery voltage with the ignition switch off.

Standard Voltage:

11 to 14 V

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

Terminals Of Ecu

TERMINALS OF ECU CHECK MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) AND POWER DISTRIBUTION BOX ASSEMBLY *1 Power Distribution Box Assembly *2 Main Body ECU (Multiplex Network Body ECU) (a) Remove the main body ECU (multiplex network body ECU) from the power distribution box assembly...

Data List / Active Test

DATA LIST / ACTIVE TEST DATA LIST NOTICE: In the following table, the values listed under "Normal Condition" are reference values. Do not depend solely on these reference values when deciding whether a part is faulty or not...

Other information:

Toyota Yaris XP210 (2020-2026) Reapir and Service Manual: O2 Sensor Circuit Range/Performance Bank 1 Sensor 1 Signal Rate of Change Below Threshold (P2A0026)

DESCRIPTION Refer to DTC P003012. Click here HINT: Although the DTC titles say oxygen sensor, this DTC relate to the air fuel ratio sensor (sensor 1). DTC No. Detection Item DTC Detection Condition Trouble Area MIL Note P2A0026 O2 Sensor Circuit Range/Performance Bank 1 Sensor 1 Signal Rate of Change Below Threshold The calculated value for the air fuel ratio sensor (sensor 1) response rate deterioration level is less than the threshold (2 trip detection logic)...

Toyota Yaris XP210 (2020-2026) Owner's Manual: Indicator Lights

These lights turn on or flash to notify the user of the system operation status or a system malfunction. KEY Indicator Light Wrench Indicator Light TCS/DSC Indicator Light DSC OFF Indicator Light Low Speed Pre-Collision System Indicator Light Low Speed Pre-Collision System OFF Indicator Light Low Engine Coolant Temperature Indicator Light Shift Position Indication Headlight High-Beam Indicator Light Turn Signal/Hazard Warning Indicator Lights Security Indicator Light Cruise Main Indication Cruise Set Indication/Indicator Light Select Mode Indicator Light Lights-On Indicator Light Front Passenger Air Bag Deactivation Indicator Light * 1: The light turns on when the ignition is switched on for an operation check, and turns off a few seconds later or when the engine is started...