CHATTERING, BINDING OR INCOMPLETE / REPEAT TRAVERSE

THIS BULLETIN IS BEING REVISED TO INFORM "GM OF CANADA" AND "NAES" DEALERS THAT THEY ARE NOT AUTHORIZED TO UTILIZE THIS SERVICE BULLETIN

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"GM OF CANADA" AND "NAES" DEALERS ARE NOT AUTHORIZED TO UTILIZE THIS SERVICE BULLETIN.

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REVISION: 02/27/95

THIS BULLETIN IS BEING REVISED TO CORRECT THE ARTWORK. PLEASE DISCARD BULLETIN 58-81-01 (SECTION 8 - CHASSIS/BODY ELECTRICAL). ----------------------------------------------------------------------

SUBJECT: CHATTERING, BINDING OR INCOMPLETE/REPEAT TRAVERSE OF SHOULDER BELT ON PASSIVE RESTRAINT (SERVICE PROCEDURE, REFERENCE CAMPAIGN BULLETIN 93-C-57)

MODELS: 1990 - 1993 PONTIAC LEMANS

CONDITION:

A. RAPID CHATTERING OF THE SHOULDER BELT CARRIER.

B. BELT CARRIER DOES NOT REACH A-PILLAR OR B-PILLAR OR STALLS WHILE MOVING.

C. COMPLETE OR REPEAT TRAVERSE OF SHOULDER BELT GUIDE TRACK UNIT FROM A-PILLAR TO B-PILLAR BUT DOES NOT LOCK AT B-PILLAR.

D. BELT MOTOR RUNS CONTINUOUSLY BUT CARRIER DOES NOT MOVE OR CARRIER MOVES IN SHORT, JERKY STEPS.

IMPORTANT: THE CARRIER IS DRIVEN BY A RETRACTABLE CABLE ON A REEL THAT IS ENCLOSED IN THE MOTOR ASSEMBLY. AS THE CARRIER IS MOVED FROM THE A-PILLAR TO THE B-PILLAR, THE CABLE RETRACTS AND EXTENDS.

CAUSE:

A. INSUFFICIENT LUBRICATION OF THE SHOULDER BELT TRACK.

B. INSUFFICIENT LUBRICATION OF THE SHOULDER BELT TRACK OR INSUFFICIENT VOLTAGE AT SHOULDER BELT MOTOR OR UNWANTED PHYSICAL RESISTANCE OF BELT TRAVEL. (SEE IMPORTANT)

C. MISSING SIGNAL AT PASSIVE RESTRAINT CONTROL MODULE FROM A-PILLAR OR B-PILLAR SWITCH OR PASSIVE RESTRAINT CONTROL MODULE FAILURE. (SEE IMPORTANT)

D. POSSIBLE DAMAGED OR BROKEN DRIVE CABLE.

IMPORTANT: THE MOTORIZED SHOULDER BELT HAS A FEATURE WHICH WILL STOP THE BELT MOTION IF ANYTHING OBSTRUCTS THE TRACK OR CAUSES HIGH PHYSICAL RESISTANCE TO THE CARRIER'S TRAVEL. THIS FEATURE WILL ALSO ATTEMPT TO CYCLE THE SHOULDER BELT A SECOND TIME AND THEN SHUT DOWN UNTIL THE IGNITION KEY IS CYCLED. SEE PAGE 23 OF THE 1993 LEMANS OWNER'S MANUAL FOR DOCUMENTATION.

CORRECTION:

A. AND B. LUBE TRACK WITH GUIDE UNIT PER INSTRUCTIONS (USE GMSPO #12346288 LUBE) AND FUNCTION SEVERAL TIMES. IF GUIDE UNIT STILL DOES NOT REACH OR LOCK IN PLACE AT B-PILLAR, PERFORM TEST IN CHARTS A AND B.

C. PERFORM CHART C.

D. PERFORM BELT FUNCTIONAL TEST D. DURING BELT TRAVEL, GRIP BELT FIRMLY TO STOP BELT TRAVEL FOR AT LEAST TWO (2) SECONDS. IF BELT DOES NOT RETURN TO A-PILLAR AND RECYCLE OR IF CLICKING SOUND IS HEARD IN B-PILLAR, REPLACE TRACK AND MOTOR ASSEMBLY FOR BROKEN OR DAMAGED CABLE.

WARRANTY INFORMATION:

T2000 - LUBRICATION ONLY 0.3

T2001 - REPLACE PASSIVE RESTRAINT MODULE/LUBE BOTH SEAT BELT GUIDE RAILS 0.4

T2002 - SOLENOID REPLACE ONE FRONT SEAT BELT RETRACTOR/LUBE (BOTH) GUIDE RAILS 0.5

T2003 - REPLACE (ONE) SEAT BELT GUIDE RAIL AND MOTOR/ LUBE (BOTH) GUIDE RAILS 1.0

T2004 - REPLACE (BOTH) SEAT BELT GUIDE RAILS AND MOTORS/ LUBE (BOTH) GUIDE RAILS 1.7

FIGURES: 0 ATTACHMENTS: 3

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.

COPYRIGHT 1995 GENERAL MOTORS CORPORATION. ALL RIGHTS RESERVED.