Lexus ES manuals

Lexus ES: Rain Sensor Malfunction (B1400)

Lexus ES (XZ10) Service Manual / Vehicle Exterior / Wiper / Washer / Wiper And Washer System (for Gasoline Model) / 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 engine 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 engine 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

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