# C1531 on the 2013 Subaru Impreza

The bulletins listed name this code in NHTSA's summary, or are about the same components. A bulletin or a recall listed here may apply to the model year. None of it is a diagnosis.

This code is specific to a manufacturer and is not described here.

## Bulletins for this model year that name C1531

- [10233428](https://open.wenmarpro.com/bulletins/10233428), 2023-04-03: This bulletin provides a revised adjustment procedure to be used when diagnosing Brake Light Switch \(BLS\) \-related DTCs C1531 and/or C0054. If the BLS is out of adjustment, the ABS and/or VDC warning lamp may illuminate.
- [10093626](https://open.wenmarpro.com/bulletins/10093626), 2017-03-03: THIS BULLETIN ANNOUNCES A DESIGN CHANGE TO THE STOP LIGHT SWITCH TO REDUCE THE POSSIBILITY OF IMPROPER ILLUMINATION OF THE ABS AND/OR VDC WARNING LAMP WITH RESULTING DTCS C1531 AND/OR C0054. DETAILS OF THE SWITCH CHANGES ARE SHOWN IN THE ILLUSTRATION BELOW.
- [10093625](https://open.wenmarpro.com/bulletins/10093625), 2017-03-03: THIS BULLETIN PROVIDES A REVISED ADJUSTMENT PROCEDURE TO BE USED WHEN DIAGNOSING BRAKE LIGHT SWITCH \(BLS\) \-RELATED DTCS C1531 AND/OR C0054. IF THE BLS IS OUT OF ADJUSTMENT, THE ABS AND/OR VDC WARNING LAMP MAY ILLUMINATE.
- [10090328](https://open.wenmarpro.com/bulletins/10090328), 2017-02-03: THIS BULLETIN ANNOUNCES A DESIGN CHANGE TO THE STOP LIGHT SWITCH TO REDUCE THE POSSIBILITY OF IMPROPER ILLUMINATION OF THE ABS AND/OR VDC WARNING LAMP WITH RESULTING DTCS C1531 AND/OR C0054. DETAILS OF THE SWITCH CHANGES ARE SHOWN IN THE ILLUSTRATION BELOW.
- [10088062](https://open.wenmarpro.com/bulletins/10088062), 2017-01-10: THIS BULLETIN ANNOUNCES A DESIGN CHANGE TO THE STOP LIGHT SWITCH TO REDUCE THE POSSIBILITY OF IMPROPER ILLUMINATION OF THE ABS AND/OR VDC WARNING LAMP WITH RESULTING DTCS C1531 AND/OR C0054. DETAILS OF THE SWITCH CHANGES ARE SHOWN IN THE ILLUSTRATION BELOW.
- [10084463](https://open.wenmarpro.com/bulletins/10084463), 2016-11-21: REVISED BRAKE LIGHT SWITCH ADJUSTMENT PROCEDURE FOR DTCS C1531 AND C0054