Lexus ES: ECU Malfunction (B1370)
DESCRIPTION
This DTC is stored when the windshield wiper motor assembly detects an internal malfunction.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | Memory | DTC Output from |
|---|---|---|---|---|---|
| B1370 | ECU Malfunction |
| Windshield wiper motor assembly | ○ | Windshield wiper motor assembly |
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 / Wiper / Trouble Codes.
(e) Clear the DTCs.
Body Electrical > Wiper > Clear DTCs
|
.gif)
| 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 / Wiper / Trouble Codes.
(f) Check for DTCs.
Body Electrical > Wiper > Trouble Codes| Result | Proceed to |
|---|---|
| DTC B1370 is not output | A |
| DTC B1370 is output | B |
| A | .gif) | USE SIMULATION METHOD TO CHECK |
| B | | REPLACE WINDSHIELD WIPER MOTOR ASSEMBLY |
READ NEXT:
Wiper Switch Signal Mismatch between LIN and Line (B1372)
DESCRIPTION Under normal operation, the windshield wiper motor assembly receives operation signals from the windshield wiper switch assembly via LIN communication. The windshield wiper motor assembly
Lost Communication with Wiper System LIN BUS (B1373)
DESCRIPTION The main body ECU (multiplex network body ECU) and windshield wiper motor assembly communicate via LIN communication. The main body ECU (multiplex network body ECU) stores this DTC if comm
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 Se
SEE MORE:
Removal
REMOVAL CAUTION / NOTICE / HINT The necessary procedures (adjustment, calibration, initialization or registration) that must be performed after parts are removed and installed, or replaced during HV battery removal/installation are shown below. Necessary Procedures After Parts Removed/Installed/Repl
Removal
REMOVAL CAUTION / NOTICE / HINT HINT:
Use the same procedure for the RH side and LH side.
The following procedure is for the LH side.
The front speed sensor rotor is a component of the front axle hub sub-assembly. If the front speed sensor rotor is malfunctioning, replace the front axle hub s
