Lexus RX (RX 350L, RX450h) 2016-2024 Repair Manual: ECU Malfunction (B1370)
DESCRIPTION
This DTC is stored when the front wiper motor and link assembly (wiper ECU) detects an internal malfunction.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | Memory | DTC Output from |
|---|---|---|---|---|---|
| B1370 | ECU Malfunction | When the battery voltage is 9.5 V or more, a malfunction is detected for 10 seconds or more during the wiper ECU self-check. | Front wiper motor and link assembly | ○ | Front wiper motor and link assembly |
PROCEDURE
| 1. | CLEAR DTC |
(a) Clear the DTCs.
Click here .gif)
|
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| 2. | CHECK FOR DTC |
(a) Turn the engine switch on (IG).
(b) Check for DTCs.
Click here
| Result | Proceed to |
|---|---|
| DTC B1370 is not output. | A |
| DTC B1370 is output. | B |
| A | .gif) | USE SIMULATION METHOD TO CHECK |
| B | | REPLACE FRONT WIPER MOTOR AND LINK ASSEMBLY |
Lost Communication with Humidity/Rain Sensor LIN (B1279)
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 ab ...
Wiper Switch Signal Mismatch between LIN and Line (B1372)
DESCRIPTION Under normal operation, the front wiper motor and link assembly (wiper ECU) receives operation signals from the windshield wiper switch assembly via LIN communication. The windshield front ...
Other materials:
Lexus RX (RX 350L, RX450h) 2016-2024 Repair Manual > Power Steering System: Parts Location
PARTS LOCATION ILLUSTRATION *A w/ Forward Recognition Camera System - - *1 ECM *2 BRAKE ACTUATOR ASSEMBLY - SKID CONTROL ECU *3 POWER STEERING ECU ASSEMBLY - POWER STEERING MOTOR *4 FORWARD RECOGNITION CAMERA *5 ELECTRIC POWER STEERING COLUMN SUB-ASSEMBLY - TORQUE ...
Lexus RX (RX 350L, RX450h) 2016-2024 Repair Manual > Dynamic Torque Control Awd System: How To Proceed With Troubleshooting
CAUTION / NOTICE / HINT HINT:
Use the following procedure listed to troubleshoot the Dynamic Torque Control AWD system.
*: Use the Techstream.
PROCEDURE 1. VEHICLE BROUGHT TO WORKSHOP
NEXT 2. INSPECT BATTERY VOLTAGE Standard Voltage: 11 to 14 V If the volt ...
Lexus RX (RX 350L, RX450h) 2016-{YEAR} Owners Manual
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Lexus RX (RX 350L, RX450h) 2016-{YEAR} Repair Manual
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