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.
2000 Cadillac DeVille BaseFACTORY OEM SERVICE PROCEDURE
Power Window DTCS
POWEER WINDOW DIAGNOSTIC TROUBLE CODE (DTC) LIST
| DTC | Description |
|---|---|
| B3172 | Passenger Window Up Switch Circuit Low |
| B3177 | Passenger Window Down Switch Circuit Low |
| B3282 | Passenger Window Switch-Express Circuit Low |
| B3377 | Left Front Window Up Switch Circuit Low |
| B3382 | Left Front Window Down Switch Circuit Low |
| B3387 | Right Front Window Up Switch Circuit Low, Driver's Door |
| B3392 | Right Front Window Down Switch Circuit Low, Driver's Door |
| B3397 | Left Rear Window Up Switch Circuit Low, Driver's Door |
| B3452 | Left Rear Window Down Switch Circuit Low, Driver's Door |
| B3457 | Right Rear Window Up Switch Circuit Low, Driver's Door |
| B3462 | Right Rear Window Down Switch Circuit Low, Driver's Door |
| B3467 | Left Front Express Down Circuit Low |
| B3472 | Right Front Express Down Circuit Low, Driver's Door |
| B3517 | Left Rear Express Down Circuit Low, Driver's Door |
| B3522 | Right Rear Express Down Circuit Low, Driver's Door |
| B3527 | Window Lock-Out Switch Circuit Low |
| U1161 | Loss of PDM Serial Data |
| U1162 | Loss of LRDM Serial Data |
| U1163 | Loss of RRDM Serial Data |
| U1170 | Loss Of Driver's Door Switch Assembly Serial Data |
Factory Service Tools
Use the Manual With the Right Hardware
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.