B1236: Window Feedback Loss of Signal

HighBodyDoors & Windows

What does B1236 mean?

B1236 is a diagnostic trouble code indicating "Window Feedback Loss of Signal". This code relates to your vehicle's doors & windows and should be diagnosed to determine the root cause. The severity level helps indicate how urgently this should be addressed.

Common causes

  • Faulty doors & windows component
  • Wiring or connector issue in the related circuit
  • Failed sensor providing incorrect readings
  • Software/calibration issue requiring ECU update
  • Related component causing secondary fault

What should you do?

This is a significant issue that should be diagnosed and repaired soon. Avoid long trips or heavy driving until the problem is resolved. Continued driving may cause additional damage.

Get a diagnosis for YOUR car

Code B1236 can mean different things depending on your vehicle. TorqueBot gives you a diagnosis specific to your make, model, and year.

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Related codes

B1235Window Feedback Failure
B1237Window Feedback Out of Range
B1234Mirror Switch Invalid Code
B1239Air Flow Blend Door Driver Circuit Failure