Toyota Yaris: Lighting System / Diagnostic Trouble Code Chart

Toyota Yaris XP210 (2020-2026) Reapir and Service Manual / Vehicle Exterior / Lighting (ext) / Lighting System / Diagnostic Trouble Code Chart

DIAGNOSTIC TROUBLE CODE CHART

Lighting System

DTC No.	Detection Item	Link
B124400	Light Sensor Circuit Malfunction
B243900	Headlight LH Circuit
B243A00	Headlight RH Circuit
B24441C	Low Beam LH Circuit Voltage Out of Range
B24451C	Low Beam RH Circuit Voltage Out of Range
U010087	Lost Communication With ECM/PCM "A" Missing Message
U010087	Lost Communication with ECM/PCM "A" Missing Message
U012087	Lost Communication with Starter / Generator Control Module Missing Message
U012687	Lost Communication with Steering Angle Sensor Module Missing Message
U012687	Lost Communication with Steering Angle Sensor Module Missing Message
U012987	Lost Communication with Brake System Control Module Missing Message
U012987	Lost Communication with Brake System Control Module "A" Missing Message
U013487	Lost Communication with Power Steering Control Module Rear Missing Message
U014087	Lost Communication with Body Control Module Missing Message
U015187	Lost Communication with Restraints Control Module Missing Message
U015587	Lost Communication with Instrument Panel Cluster (IPC) Control Module
U016487	Lost Communication with HVAC Control Module Missing Message
U016887	Lost Communication with Vehicle Security Control Module Missing Message
U023587	Lost Communication with Cruise Control Front Distance Range Sensor Signal Sensor or Center Missing Message

Data List / Active Test

DATA LIST / ACTIVE TEST DATA LIST NOTICE: In the table below, 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...

Vehicle Control History

VEHICLE CONTROL HISTORY CHECK VEHICLE CONTROL HISTORY HINT: The vehicle control history data stores the history of the reject function and system protection operations...

Other information:

Toyota Yaris XP210 (2020-2026) Owner's Manual: Engine Start Function When Key Battery is Dead

If the engine cannot be started due to a dead key battery, the engine can be started using the following procedure: Continue to depress the brake pedal firmly until the engine has completely started. Manual transaxle: Continue to depress the clutch pedal firmly until the engine has completely started...

Toyota Yaris XP210 (2020-2026) Owner's Manual: Immobilizer System

The immobilizer system allows the engine to start only with a key the system recognizes. If someone attempts to start the engine with an unrecognized key, the engine will not start, thereby helping to prevent vehicle theft. If you have a problem with the immobilizer system or the key, consult your Toyota dealer...