16955/P0571/001393
From Ross-Tech Wiki
16955/P0571/001393 - Brake Light Switch (F): Implausible Signal
Possible Symptoms
- Malfunction Indicator Lamp (MIL) active
- Glow Plug Indicator Light active
- Brake Light(s) not working
Possible Causes
- Wiring and/or Connectors faulty
- Fuse(s) faulty
- Wrong Brake Light Bulb installed (21W instead of 5/21W)
- Brake Light Bulb(s) faulty
- Brake Light Switch (F) faulty
Possible Solutions
- Check Wiring or Connectors
- Check/Replace Fuse(s)
- Check/Replace Brake Light Bulb(s)
- Check/Replace Brake Switch (F)
Special Notes
- Brake Light Switches (F) have the reputation of breaking quite often.
- When found in the NAR market 2011+ (16/AJ) Jetta Sedan using PR code AW0 Version Low in addition to a BCM25/PQ25 BCM check the wiring to/from the brake light switch. Internal Ref: ST?ID=66540