DTC B1638: Curtain Shield Airbag Sensor Initialization Error (LH) [10/2020 - 11/2021]: Description
The circuit for the side collision sensor LH is composed of the airbag ECU assembly, door side airbag sensor LH, side airbag sensor assembly LH and rear airbag sensor LH.
The rear airbag sensor LH detects impacts to the vehicle and sends signals to the airbag ECU assembly to determine if the airbag should be deployed.
DTC B1638 is stored when a malfunction is detected in the circuit for the side collision sensor LH.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | Warning Indicate | Test Mode / Check Mode |
|---|---|---|---|---|---|
| B1638 | Curtain Shield Airbag Sensor Initialization Error (LH) | One of the following conditions is met:
|
|
Comes on | Not applicable |