DTC B1860/64: Short in Driver Side Knee Airbag Squib Circuit; DTC B1861/64: Open in Driver Side Knee Airbag Squib Circuit; DTC B1862/64: Short to GND in Driver Side Knee Airbag Squib Circuit; DTC B1863/64: Short to B+ in Driver Side Knee Airbag Squib Circuit [03/2017 - 04/2020]: Description
WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2024 Lexus LC 500, 2023 Lexus LC 500, 2022 Lexus LC 500, 2021 Lexus LC 500, and 2020 Lexus LC 500. However, it is still accessible from the selected car via links, so may be relevant.
The driver side knee squib circuit consists of the airbag ECU assembly and lower No. 1 instrument panel airbag assembly.
This circuit instructs the SRS to deploy when deployment conditions are met.
These DTCs are stored when a malfunction is detected in the driver side knee squib circuit.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | Warning Indicate | Test Mode / Check Mode |
|---|---|---|---|---|---|
| B1860/64 | Short in Driver Side Knee Airbag Squib Circuit | One of the following conditions is met:
|
|
Comes on | Applicable |
| B1861/64 | Open in Driver Side Knee Airbag Squib Circuit | One of the following conditions is met:
|
|
Comes on | Applicable |
| B1862/64 | Short to GND in Driver Side Knee Airbag Squib Circuit | One of the following conditions is met:
|
|
Comes on | Applicable |
| B1863/64 | Short to B+ in Driver Side Knee Airbag Squib Circuit | One of the following conditions is met:
|
|
Comes on | Applicable |