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.
1992 Buick Roadmaster BaseFACTORY OEM SERVICE PROCEDURE
Component Locations
COMPONENT LOCATIONS
| Component | Location |
|---|---|
| Circuit Breaker C | In Fuse Block |
| Fuse Block | Mounted To Left Side Of Instrument Panel, Accessible With Left Front Door Open. See Fig 1 . |
| Left Front Window Motor | Left Front Door. See Fig 2 . |
| Left Rear Window Motor | Left Rear Door. See Fig 3 . |
| Left Rear Window Switch | Left Rear Door. See Fig 3 . |
| Master Power Window Switch Assembly | Center Of Left Front Door. See Fig 2 . |
| Right Front Window Motor | Right Front Door. See Fig 4 . |
| Right Front Window Motor Right Front Window Switch | Right Front Door. See Fig 4 . |
| Right Rear Window Motor | Right Rear Door. See Fig 5 . |
| Right Rear Window Motor & Right Rear Window Switch | Right Rear Door. See Fig 5 . |
| C303 (6 Cavity) | Crosscar Harness To Body Harness, Behind Left Kickpad At Base Of "A" Pillar. See Fig 2 . |
| G200 | Behind Base Of Left "A" Pillar, Behind Left Kickpad. See Fig 2 . |
| P300 | Between Left Rear Door And "B" Pillar. See Fig 3 . |
| P301 | Between Right Rear Door And "B" Pillar. See Fig 5 . |
| P302 | Between Right Front Door And "A" Pillar. See Fig 4 . |
| P303 | Between Left Front Door And "A" Pillar. See Fig 2 . |
| S300 | Cross Car Harness, Approximately 4.7" (12 cm) From C302 Breakout. |
| S311 | Cross Car Harness, Approximately 19" (49 cm) From C300 Breakout. |
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:
- 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.
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