Lexus ES manuals

Lexus ES: 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

  • IG power source voltage is 9.5 V or more
  • Either of the following is detected
    • Rain sensor internal thermistor malfunction detected for 10 seconds or more
    • LED output malfunction detected for 2 seconds or more

Rain sensor

Rain sensor

PROCEDURE

1.

CLEAR DTC

(a) Connect the Techstream to the DLC3.

(b) Turn the power switch on (IG).

(c) Turn the Techstream on.

(d) Enter the following menus: Body Electrical / Rain and/or Humidity Sensor / Trouble Codes.

(e) Clear the DTCs.

Body Electrical > Rain and/or Humidity Sensor > Clear DTCs
NEXT

2.

CHECK FOR DTC

(a) Connect the Techstream to the DLC3.

(b) Turn the power switch on (IG).

(c) Wait 10 seconds or more.

(d) Turn the Techstream on.

(e) Enter the following menus: Body Electrical / Rain and/or Humidity Sensor / Trouble Codes.

(f) 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

USE SIMULATION METHOD TO CHECK

B

REPLACE RAIN SENSOR

READ NEXT:

 Wiper Motor Power Source Circuit

DESCRIPTION This circuit is the power source circuit for the windshield wiper motor assembly. WIRING DIAGRAM CAUTION / NOTICE / HINT NOTICE: Inspect the fuses of circuits related to this system be

 Wiper and Washer Switch Circuit

DESCRIPTION The condition of the windshield wiper switch assembly is detected and sent to the steering sensor in this circuit. WIRING DIAGRAM PROCEDURE 1. READ VALUE USING TECHSTREAM (a) Con

 Washer Motor Circuit

DESCRIPTION When the windshield washer motor and pump assembly receives signals from the windshield wiper switch assembly it operates to spray washer fluid from the washer nozzle sub-assemblies. WIRIN

SEE MORE:

 IG1 Voltage Supply too High (C1417,C14DF)

DESCRIPTION If a malfunction is detected in the power source circuit, the skid control ECU (brake booster with master cylinder assembly) stores DTC C1417 and prohibits operation of ABS, brake assist, regenerative brake cooperative control, etc. DTC C1417 is stored if an excessive ECU voltage due to

 Combination Switch

ComponentsCOMPONENTS ILLUSTRATION *1 EV DRIVE MODE SWITCH (NO. 3 COMBINATION SWITCH ASSEMBLY) - - InspectionINSPECTION PROCEDURE 1. INSPECT EV DRIVE MODE SWITCH (NO. 3 COMBINATION SWITCH ASSEMBLY) (a) Inspect EV mode switch (No. 2 combination switch assembly) (1) Measure the resist

© 2016-2024 Copyright www.lexguide.net