PRNDL Decoder Module Exchange Test - Revised

1988 Oldsmobile Ninety-Eight V6-3800 3.8LSECTION PRNDL Decoder Module Exchange Test - Revised

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NUMBER: 91-T-233

CORP.REF.NO: 208101

DATE: March 1992

SECTION: 8A


SUBJECT:
SERVICE MANUAL UPDATE - I/P:DIGITAL CLUSTER U52 REPLACEMENT TESTS FOR PRNDL DECODER

MODELS/YEARS:
1988-91 EIGHTY EIGHT,
AND 1988-90 NINETY EIGHT





The PRNDL DECODER MODULE EXCHANGE TEST, found in the above mentioned Service Manuals is not practical due to the lack of new parts to tryout at dealerships. It also reflects a "parts changing" altitude toward diagnosis which should be discouraged.

The enclosed tests replace the PRNDL DECODER MODULE EXCHANGE TEST found on the following pages:

^ 1991 Eighty-Eight, page 8A-82-15 (Test J)
^ 1990 Eighty Eight\Ninety Eight, page 8A-82-15 (Test J)
^ 1988 Eighty Eight\Ninety Eight, page 8A-82-16 (Test M)

Please update your respective Service Manual accordingly.

RENDER: 1.0x

NO RELATED

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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.