Subaru P1521: Brake Switch Circuit Range
Is your scanner showing Subaru P1521?
No worries. We'll show you what it means and how to deal with it.
Subaru P1521: Brake Switch Circuit Range
OVERVIEWWhat Does The Subaru P1521 Code Mean?
Stop light switch circuit is open or shorted. ABS does not operate.
What Are The Potential Causes Of The Subaru P1521 Code?
- Open/Short between fuse and DCCD control module, or between fuse and battery.
- Faulty stop light switch
Recommended Parts
Below are some recommended auto parts to help you address the trouble code affecting your vehicle and get it running smoothly again:
>>> WORKPRO 582-piece Crimp Terminals, Wire Connectors, Heat Shrink Tube, Electrical Repair Kit
>>> Twippo 372Pcs Waterproof Wire Connectors Kit
>>> labwork Brake Stop Light Lamp Switch
Note: During the purchasing process, please check carefully whether the part you want to buy fits your car!
Reference Sources
- Technical Service Bulletin for P1521 – 2014-16MY Forester, 2008-14MY WRX and STI, 2012-16MY Impreza 2.0L, 2013-16MY XV Crosstrek
- Testing and Inspection for P1521 – Pages 21-22.
