INFO. ON RESETTING SSS/CCR/SDD DIAGNOSTIC CODES. Buick Park Avenue 1993

REVISION: 11/13/95

THIS BULLETIN IS BEING REVISED TO ADD THE BUICK N-CAR. **********************************************************************

SUBJECT: INFORMATION ON RESETTING SSS/CCR/SDD DIAGNOSTIC CODES 13-16 OR 23-26 FOLLOWING STRUT REPLACEMENT

MODELS: 1992-93 BUICK SKYLARK 1993-95 BUICK PARK AVENUE 1989-92 CADILLAC ALLANTE 1991-92 CADILLAC FLEETWOOD 1991-95 CADILLAC DEVILLE 1992-93 CADILLAC ELDORADO, SEVILLE 1993 CADILLAC SIXTY SPECIAL 1991-95 OLDSMOBILE NINETY EIGHT 1992-93 OLDSMOBILE ACHIEVA 1994-95 PONTIAC BONNEVILLE

SSS/CCR/SDD ACTUATOR ERROR CODE 13 OR 23 (LF), 14 OR 24 (RF), 15 OR 25 (LR), 16 OR 26 (RR) WILL NOT RESET FOLLOWING STRUT REPLACEMENT.

IMPORTANT: THIS CONDITION APPLIES TO VEHICLES WITH THE FOLLOWING SUSPENSIONS:

SSS (SPEED SENSITIVE SUSPENSION), RPO FE1, ON CADILLAC OTHER THAN ALLANTE

CCR (COMPUTER COMMAND RIDE), RPO FW1/FX3, ON BUICK OLDSMOBILE, PONTIAC

SDD (SPEED DEPENDENT DAMPING), RPO FE3, ON ALLANTE

RESISTANCE ACROSS THE NEW STRUT ACTUATOR MOTOR MAY BE OUTSIDE THE SPECIFIED 20-60 OHMS DUE TO A BUILD-UP OF TARNISH IN THE ACTUATOR MOTOR THUS CAUSING THE ABOVE DESCRIBED CONDITION. TARNISH CAN FORM DUE TO STRUT DISUSE WHILE IN PART STORAGE.

TO CORRECT THIS CONDITION, PLACE THE SSS/CCR/SDD SYSTEM INTO OUTPUT CYCLING MODE FOR TWO MINUTES. THE SSS/CCR/SDD MODULE WILL CONTINUOUSLY CYCLE ALL STRUTS THROUGH ALL ACTUATOR MOTOR POSITIONS WHILE THE RESISTOR IS IN PLACE. ACTUATOR MOTOR POSITION CHANGES WILL OCCUR EVERY TWO SECONDS WITH THE RESISTOR IN PLACE. TWO MINUTES OF ACTUATOR CYCLING WILL EFFECTIVELY REMOVE ANY TARNISH THAT MAY HAVE DEVELOPED ON THE STRUT MOTOR WHILE IN STORAGE.

1989/90 ALLANTE - THE OUTPUT CYCLING MODE MAY BE CALLED UP BY PLACING A 1K OHM RESISTOR ACROSS DLC (ALDL) CONNECTOR PINS C (SDD DIAGNOSTIC ENABLE) AND A (GROUND). VATS INTERROGATOR POSITION 4 OR 5 WILL PROVIDE THE REQUIRED 1K OHM RESISTANCE.

OTHERS LISTED - THE OUTPUT CYCLING MODE FOR THE OTHER VEHICLES LISTED MAY BE CALLED UP BY PLACING A 6.6K OHM RESISTOR ACROSS DLC (ALDL) PIN AS FOLLOWS:

DLC (ALDL) 12-PIN CONNECTOR - PINS C (SSS/CCR DIAGNOSTIC ENABLE) AND A (GROUND)

DLC (ALDL) 16-PIN CONNECTOR - PINS 3 (SSS/CCR DIAGNOSTIC ENABLE) AND 4 (GROUND)

THE VATS INTERROGATOR, SET TO POSITION 12 OR 13, MAY BE USED TO PROVIDE THE REQUIRED 6.6K OHM RESISTANCE.

THE VATS INTERROGATOR PIGTAIL WITH GREEN AND WHITE LEADS IS THE RESISTANCE CONNECTION. NO POLARITY CONSIDERATIONS EXIST.

FIGURES: 00 ATTACHMENTS: 00

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.