B2109: Heated Wind Shield Relay Short to Vbatt (changed from Failure 2/6/97)

What does B2109 mean?

B2109 is a diagnostic trouble code indicating "Heated Wind Shield Relay Short to Vbatt (changed from Failure 2/6/97)". This code relates to your vehicle's body electronics and should be diagnosed to determine the root cause. The severity level helps indicate how urgently this should be addressed.

Symptoms you may notice

• Check engine light (MIL) illuminated on dashboard
• Possible issues with body electronics operation
• Vehicle may enter reduced power mode (limp mode)

Common causes

• Faulty body electronics 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?

Schedule a diagnostic appointment at your earliest convenience. The vehicle is generally safe to drive short distances, but the underlying issue should be addressed to prevent it from worsening.