Toyota Yaris: Wiper And Washer System / Diagnostic Trouble Code Chart

Toyota Yaris XP210 (2020-2025) Reapir and Service Manual / Vehicle Exterior / Wiper / Washer / Wiper And Washer System / Diagnostic Trouble Code Chart

DIAGNOSTIC TROUBLE CODE CHART

Wiper and Washer System

DTC No.	Detection Item	DTC Output from
B127987	Humidity/Rain Sensor Missing Message	Main Body
B1400	Rain Sensor Malfunction	Rain and/or Humidity Sensor
B235787	Wiper Module Missing Message	Main Body

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...

Humidity/Rain Sensor Missing Message (B127987)

DESCRIPTION The main body ECU (multiplex network body ECU) and rain sensor communicate via LIN communication. The main body ECU (multiplex network body ECU) stores this DTC if communication becomes abnormal...

Other information:

Toyota Yaris XP210 (2020-2025) Reapir and Service Manual: Check For Intermittent Problems

CHECK FOR INTERMITTENT PROBLEMS NOTICE: If the vehicle or vehicle controls are operated (for example, during initial inspection when the vehicle is brought in for repair) before Vehicle Control History (RoB) has been collected, the past Vehicle Control History (RoB) information could be lost...

Toyota Yaris XP210 (2020-2025) Reapir and Service Manual: Front Fog Light Circuit

DESCRIPTION The main body ECU (multiplex network body ECU) controls the front fog lights. WIRING DIAGRAM CAUTION / NOTICE / HINT NOTICE: Before replacing the main body ECU (multiplex network body ECU), refer to Registration. Click here First, confirm that there is no malfunction in the power integration system...