SMU - SECTION 8A - 114 - REVISED 'CIRCUIT OPERATION'. Oldsmobile Cutlass Supreme 1994

REVISION: 07/24/96

THIS BULLETIN IS BEING REVISED TO INCLUDE THE "LIGHT SHORT TEST". *******************************************************************

SUBJECT: SERVICE MANUAL UPDATE - SECTION 8A-114 - REVISED "LIGHT SHORT TEST" AND "CIRCUIT OPERATION"

MODELS: 1994 OLDSMOBILE CUTLASS SUPREME

THIS BULLETIN IS BEING ISSUED TO REVISE THE "LIGHT SHORT TEST" AND "CIRCUIT OPERATION" FOUND ON PAGE 8A-114-7 OF THE SERVICE MANUAL.

LIGHT SHORT TEST ================

WITH ALL THE DOORS CLOSED, HEADLIGHT SWITCH TURNED OFF AND I/P DIMMER SWITCH TURNED OFF, DISCONNECT THE DOOR MINI WEDGE SWITCHES, DOOR JAMB SWITCHES, DOOR HANDLE SWITCHES (AS NECESSARY) AND THE REMOTE CONTROL DOOR LOCK RECEIVER (RCDLR), IF EQUIPPED, ONE AT A TIME.

O IF THE LIGHTS GO OUT WHEN A PARTICULAR COMPONENT IS DISCONNECTED, REPLACE THAT COMPONENT.

O IF THE LIGHTS REMAIN LIT WITH ALL SWITCHES DISCONNECTED, DISCONNECT THE HEADLIGHT SWITCH. IF LIGHTS GO OUT, CHECK CKT 49 FOR A SHORT TO GROUND. IF "OK", REPLACE HEADLIGHT SWITCH. IF LIGHTS REMAIN LIT, REPAIR SHORT TO GROUND IN CKT 156.

CIRCUIT OPERATION =================

DOOR COURTESY/WARNING, INSIDE LIGHTED MIRROR, I/P COURTESY, REAR COURTESY/READING AND DOME LIGHTS -

VOLTAGE IS APPLIED AT ALL TIMES THROUGH THE CTSY FUSE TO THE DOOR COURTESY/WARNING LIGHTS, INSIDE LIGHTED MIRROR LIGHTS, I/P COURTESY LIGHTS, REAR COURTESY/READING LIGHTS AND TO THE DOME LIGHTS. THE DOOR COURTESY/WARNING, LIGHTED MIRROR, I/P COURTESY, REAR COURTESY/READING LIGHTS AND THE DOME LIGHTS WILL ILLUMINATE WHENEVER A DOOR IS OPENED OR WHENEVER THE HEADLIGHT SWITCH IS TURNED TO "DOME". THE INSIDE LIGHTED MIRROR LIGHTS AND THE REAR COURTESY/READING LIGHTS ALSO HAVE A SEPARATE SWITCH IN THE CIRCUIT. WHEN TURNED TO "ON", THIS SWITCH ALLOWS FOR INDIVIDUAL OPERATION OF THESE LIGHTS.

SUSTAINED INTERIOR LIGHTING -

THE HEADLIGHT SWITCH CONTROLS THE SUSTAINED ILLUMINATION FEATURE FOR THE COURTESY LIGHTS. AFTER ALL THE DOORS ARE CLOSED, THE HEADLIGHT SWITCH WILL KEEP THE COURTESY LIGHTS "ON" FOR APPROXIMATELY 16 SECONDS, GRADUALLY DIMMING THE LIGHTS UNTIL THEY ARE "OFF". TURNING THE IGNITION SWITCH TO "RUN" OR "START" WILL CANCEL THIS PROCESS, EXTINGUISHING ALL COURTESY LIGHTS.

ILLUMINATED ENTRY -

AN ILLUMINATED ENTRY FEATURE IS AVAILABLE ONLY WITH KEYLESS ENTRY. WHEN THE DOORS ARE UNLOCKED BY THE KEY FOB TRANSMITTER, THE REMOTE CONTROL DOOR LOCK RECEIVER WILL ILLUMINATE THE COURTESY LIGHTS FOR APPROXIMATELY 40 SECONDS. LOCKING THE DOORS WITH THE KEY FOB TRANSMITTER WILL CAUSE THE RECEIVER TO ILLUMINATE THE COURTESY LIGHTS ONCE AGAIN FOR APPROXIMATELY 2 SECONDS. WHEN THE RECEIVER TIMES OUT FOR EITHER "LOCK" OR "UNLOCK" FUNCTION, THE HEADLIGHT SWITCH WILL INITIATE THE SUSTAINED ILLUMINATION DIMMING FEATURE.

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GENERAL MOTORS BULLETINS ARE INTENDED FOR USE BY PROFESSIONAL TECHNICIANS, NOT A "DO-IT-YOURSELFER". THEY ARE WRITTEN TO INFORM THOSE TECHNICIANS OF CONDITIONS THAT MAY OCCUR ON SOME VEHICLES, OR TO PROVIDE INFORMATION THAT COULD ASSIST IN THE PROPER SERVICE OF A VEHICLE. PROPERLY TRAINED TECHNICIANS HAVE THE EQUIPMENT, TOOLS, SAFETY INSTRUCTIONS AND KNOW-HOW TO DO A JOB PROPERLY AND SAFELY. IF A CONDITION IS DESCRIBED, DO NOT ASSUME THAT THE BULLETIN APPLIES TO YOUR VEHICLE, OR THAT YOUR VEHICLE WILL HAVE THAT CONDITION. SEE A GENERAL MOTORS DEALER SERVICING YOUR BRAND OF GENERAL MOTORS VEHICLE FOR INFORMATION ON WHETHER YOUR VEHICLE MAY BENEFIT FROM THE INFORMATION.