1992 Buick Roadmaster BaseFACTORY OEM SERVICE PROCEDURE

Remote Keyless Entry System: Testing

  1. If unlock function is inoperative, but lock function operates normally (passenger doors only), check for an open circuit in keyless entry receiver terminal "D" Black wire. If circuit is okay, reprogram system using a known good transmitter. If unlock function remains inoperative, replace keyless entry receiver.
  2. If lock function is inoperative, but unlock function operates normally (all doors), check for an open circuit in Light Blue wire from keyless entry receiver Black connector terminal "E". If circuit is okay, reprogram system using a known good transmitter. If lock function remains inoperative, replace keyless entry receiver.
NOTE: For remaining testing, refer to appropriate diagnostic chart. See SYSTEM TESTING  .
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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.

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