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.
Fig 1: Locating Fuse Block
G00130537Courtesy of GENERAL MOTORS CORP.
Factory Service Tools

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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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