DTC P039 SET WHEN DRIVING UP SLIGHT GRADE AFTER COLD START. Cadillac Concours 1995

SUBJECT: DTC P039 SET WHEN DRIVING UP SLIGHT GRADE AFTER COLD START (DIAGNOSE/INSTALL NEW PCM)

MODELS: 1993-95 CADILLAC ELDORADO, SEVILLE 1994-95 CADILLAC CONCOURS, DEVILLE WITH 4.6L ENGINE (VIN Y - RPO LD8)

CONDITION:

DTC CODE P039, TORQUE CONVERTER CLUTCH ENGAGEMENT, MAY SET WHEN DRIVING UP A SLIGHT GRADE AFTER A COLD START.

CORRECTION:

A PCM CALIBRATION ENHANCEMENT HAS BEEN RELEASED FOR THE ABOVE LISTED VEHICLES. IF A VEHICLE IS ENCOUNTERED WITH THIS CONDITION, AND ALL OF THE DIAGNOSTIC PROCEDURES LISTED IN THE SERVICE MANUAL HAVE BEEN PERFORMED, WITH NO RESULTING CORRECTION, THEN UPDATE THE VEHICLE WITH THE APPLICABLE CALIBRATION LISTED BELOW.

PARTS INFORMATION:

PART NUMBER DESCRIPTION 16266755 1993 PCM PROM 16266762 1994 PCM PROM 16266767 1995 PCM PROM

PARTS ARE EXPECTED TO BE AVAILABLE FROM GMSPO ON JUNE 1, 1998.

WARRANTY INFORMATION:

FOR VEHICLES REPAIRED UNDER WARRANTY, USE:

LABOR OPERATION DESCRIPTION LABOR TIME

J6364 PROM, PCM-REPLACE USE PUBLISHED LABOR TIME

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.