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 Owners Manual > Basic Operations: USB/AUX ports
Connect an iPod, USB memory device or portable audio player to the USB/
AUX port as indicated below. Select "iPod", "USB", "AUX" or "External" on
the audio source selection screen and the device can be operated via Lexus
Display Audio system.
Connecting using the USB/AUX port
1. Press the knob. ...
Lexus RX (RX 350L, RX450h) 2016-2024 Repair Manual > Air Conditioning System: Exhaust Gas Sensor Circuit (B1418/18)
DESCRIPTION The smog ventilation sensor is installed to the front of the cooler condenser assembly to automatically control the air inlet mode (fresh, recirculation/fresh, and recirculation). This sensor detects HC and CO in the ambient air and transmits signals to the air conditioning amplifier ass ...
Lexus RX (RX 350L, RX450h) 2016-{YEAR} Owners Manual
- For your information
- Pictorial index
- For safety and security
- Instrument cluster
- Operation of each component
- Driving
- Lexus Display Audio system
- Interior features
- Maintenance and care
- When trouble arises
- Vehicle specifications
- For owners
Lexus RX (RX 350L, RX450h) 2016-{YEAR} Repair Manual
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