Toyota Yaris: Wiper And Washer System / Rain Sensor Malfunction (B1400)
DESCRIPTION
This DTC is stored when the rain sensor detects an internal malfunction.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | Memory | DTC Output from |
|---|---|---|---|---|---|
| B1400 | Rain Sensor Malfunction |
| Rain sensor | ○ | Rain and/or Humidity Sensor |
PROCEDURE
| 1. | CLEAR DTC |
(a) Clear the DTCs.
Body Electrical > Rain and/or Humidity Sensor > Clear DTCs
|
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| 2. | CHECK FOR DTC |
(a) Wait 10 seconds or more.
(b) Check for DTCs.
Body Electrical > Rain and/or Humidity Sensor > Trouble Codes| Result | Proceed to |
|---|---|
| DTC B1400 is not output | A |
| DTC B1400 is output | B |
| A |
.gif) | USE SIMULATION METHOD TO CHECK |
| B |
| REPLACE RAIN SENSOR |
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...
Wiper Module Missing Message (B235787)
DESCRIPTION The main body ECU (multiplex network body ECU) and windshield wiper relay assembly communicate via CXPI communication. The main body ECU (multiplex network body ECU) stores this DTC if communication becomes abnormal...
Other information:
Toyota Yaris XP210 (2020-2026) Reapir and Service Manual: Inspection
INSPECTION PROCEDURE 1. INSPECT SPIRAL CABLE SUB-ASSEMBLY NOTICE: Do not remove the steering sensor from the spiral cable sub-assembly when inspecting the spiral cable sub-assembly. Remove the steering sensor from the spiral cable sub-assembly only when replacing the spiral cable sub-assembly...
Toyota Yaris XP210 (2020-2026) Reapir and Service Manual: 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). After replacing the engine stop and start ECU (step 2), write the number of starter operations to the new engine stop and start ECU (step 3)...
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Supplemental Restraint System (SRS) Precautions
The front and side supplemental restraint systems (SRS) include different types of air bags. Please verify the different types of air bags which are equipped on your vehicle by locating the “SRS AIRBAG” location indicators. These indicators are visible in the area where the air bags are installed.
The air bags are installed in the following locations:
The steering wheel hub (driver air bag) The front passenger dashboard (front passenger air bag) The outboard sides of the front seatbacks (side air bags) The front and rear window pillars, and the roof edge along both sides (curtain air bags)