Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Circuit Description
Right window switch provides input to Right Door Control Module (RDCM) when right window switch is depressed to UP or DOWN position. This input allows RDCM to detect a right window up or down request. RDCM provides both power and ground to window switch. When right window switch is depressed to UP or DOWN position, ground is supplied through right window switch and right window up or down switch is pulled low. When RDCM detects low voltage on right window up or down switch input circuit, RDCM will command right window up or down. When switch is released, RDCM will command right window to stop (window express down feature not activated). RDCM monitors both left window input circuits and determines how long ground had been applied. If ground is applied for longer than expected, a malfunction is present and a DTC will set.
DTC B2205 will set if RDCM detects a low voltage level (short to ground) at right window down switch input circuit. This condition must exist for more than 20 seconds. DTC B2205 will store as a history code in RDCM memory. No driver warning will be displayed.
Under all fault conditions, DTC B2205 will clear automatically when RDCM no longer detects a low voltage level (short to ground) at right window down switch input circuit for longer than 20 seconds. Current and history DTCs can be cleared using scan tool or IPC clearing DTC's feature.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- β’ You smell fuel, burning insulation, or see smoke.
- β’ Brakes feel soft, pull hard to one side, or make grinding noises.
- β’ The engine overheats, stalls repeatedly, or misfires under load.
- β’ You are missing required tools, torque specs, or safe lifting equipment.
- β’ You are not confident in the next step or safety outcome.