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SMU-SEC, 6E - ENGINE CONTROLS REV. STEP 5 IN CHART

SUBJECT: SERVICE MANUAL UPDATE - SECTION 6E - ENGINE CONTROLS - REVISED STEP 5 IN CHART FOR DIAGNOSTIC TROUBLE CODE E048/P048 EXHAUST GAS RECIRCULATION (EGR) SYSTEM MALFUNCTION

MODELS: 1991-92 CADILLAC ELDORADO TOURING COUPE, FLEETWOOD, SEVILLE STS 1991-93 CADILLAC ELDORADO, FLEETWOOD 60 SPECIAL, SEVILLE SLS 1991-95 CADILLAC DEVILLE 1992-93 CADILLAC DEVILLE TOURING SEDAN WITH 4.9L ENGINE (VIN B - RPO L26)

THIS BULLETIN REVISES THE DIAGNOSTIC TROUBLE CODE E048/P048 EXHAUST GAS RECIRCULATION (EGR) SYSTEM MALFUNCTION, PAGE 4 OF 4, STEP 5.

REPLACE THE FOLLOWING INFORMATION IN STEP 5:

* ENGINE IDLING, LIFT UP ON THE EGR VALVE * ENGINE SHOULD BECOME ROUGH OR STALL

WITH:

* SELECT THE PCM OVERRIDE FOR THE EGR SOLENOID * PRESS AND HOLD THE WARMER BUTTON * LIGHT SHOULD GO "OFF"

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. COPYRIGHT 1998 GENERAL MOTORS CORPORATION. ALL RIGHTS RESERVED.