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
(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 | | |
(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 |
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