B2194: Window Passenger Rear Remote Down Switch Short to Battery

What does B2194 mean?

B2194 is a diagnostic trouble code indicating "Window Passenger Rear Remote Down Switch Short to Battery". 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.

Symptoms you may notice

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

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 code sits in the body control module or something wired through it. That module runs the unglamorous things you only miss when they stop: headlights, wipers, indicators, central locking. The car will usually drive, but check what has actually stopped working before you rely on it at night or in the wet.