SMU - SECTION 8A - REVISED ELECTRICAL DIAGNOSIS

SUBJECT: SERVICE MANUAL UPDATE - SECTION 8A - REVISED ELECTRICAL DIAGNOSIS, SCHEMATICS, DTC TABLE FOR INSTRUMENT PANEL: DIGITAL CLUSTER (U2A)

MODELS: 1994 OLDSMOBILE EIGHTY EIGHT AND NINETY EIGHT

THIS BULLETIN CONTAINS REVISIONS AND ADDITIONS TO SECTION 8A-82 TO COVER ELECTRICAL DIAGNOSIS. A MORE DETAILED SCHEMATIC AND ELECTRICAL DIAGNOSIS FOR THE PRND321 INPUT CIRCUITS TO THE INSTRUMENT PANEL CLUSTER (IPC) ARE INCLUDED IN THESE ADDITIONS.

THE DIAGNOSTIC TROUBLE CODE (DTC) TABLE WAS UPDATED TO PROVIDE BETTER DIRECTION IN DETERMINING THE PROPER TEST TO PERFORM FOR EACH FAILURE ASSOCIATED WITH A DTC.

IN ADDITION, DIAGNOSTIC TESTS ARE INCLUDED FOR DIC MESSAGES, OIL LEVEL SYSTEM PROBLEM AND COOLANT LEVEL SYSTEM PROBLEM.

THE FOLLOWING PAGES ARE REVISIONS AND ADDITIONS TO THE SERVICE MANUAL, (SEE ATTACHMENTS).

8A-82-6 REVISION 8A-82-9 REVISION 8A-82-10A ADDITION 8A-82-11 REVISION 8A-82-13A REPLACES DIAGNOSTIC TROUBLE CODE TABLE ON PAGE 8A-82-13 8A-82-15 REVISION 8A-82-18 REVISION 8A-82-26A ADDITION 8A-82-26B ADDITION 8A-82-26C ADDITION 8A-82-26D ADDITION

FIGURES: 0 ATTACHMENTS: 11

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