MISC. QUICK SERV. INFO. ITEMS MULTIPLE SUBJECTS. Cadillac Seville 1981

MISCELLANEOUS QSI (QUICK SERVICE INFORMATION) ITEMS

(THIS BULLETIN CONTAINS SEVERAL ITEMS OF CURRENT SERVICE INTEREST THAT MAY BE HELPFUL TO SERVICE TECHNICIANS.)

GR. 8 1981 FUSEABLE LINK COLOR CODES CHANGED

FUSEABLE LINK COLOR CODES HAVE BEEN CHANGED IN 1981. FOR 1980 AND EARLIER, WIRE COLORS WERE AS FOLLOWS: YELLOW FOR HEADLIGHTS RED FOR IGNITION AND BLACK FOR BODY. FOR 1981, THE COLORS ARE AS FOLLOWS: YELLOW FOR HEADLIGHTS, BLACK FOR IGNITION AND RED FOR BODY.

1980 AND EARLIER 1981

YELLOW - HEADLIGHTS - YELLOW RED - IGNITION - BLACK BLACK - BODY - RED

GR. 9 CRUISE CONTROL INOPERATIVE

INOPERATIVE CRUISE CONTROL ON SOME E AND K DIESEL-EQUIPPED VEHICLE WITH DIGITAL DISPLAY MIGHT BE CAUSED BY IMPROPER WIRING AT THE BUFFER AMPLIFIER. TO CORRECT, REMOVE WIRE FROM CAVITY B, CUT OFF TERMINAL AND SPLICE INTO WHT WIRE IN CAVITY A. LEAVE CAVITY B OPEN ALSO, VERIFY PROPER ORIENTATION OF WIRES IN CAVITIES C, D, AND E. SEE ILLUSTRATION BELOW.

GR. 9 SEAT BELT CHIMES MUTED ON ELDORADOS OR SEVILLES

MUTED SEAT BELT CHIMES ON 1981 E AND K CARS CAN BE CAUSED BY THE CB RADIO ANTENNA SPLITTER WIRE BEING ROUTED ACROSS THE CHIME. RE- ROUTE TO AVOID CONTACT.

GR. 9 RADIO NOISE ON SOME 1981 E AND K CARS

NOISE IN THE RADIO ON SOME 1981 E AND K CARS CAN BE CAUSED BY THE ECM BEING GROUNDED AT ITS MOUNTING BRACKET. THE ECM MUST NOT BE GROUNDED TO THE CHASSIS. INSULATE FROM MOUNTING TO CORRECT.

GR. 1 ECC POWER MODULE INOPERATIVE - 1981 C-CAR WITH V-6

THE ECC POWER MODULE MAY BECOME INOPERATIVE IF THE A/C COMPRESSOR DIODE LEADS ARE SHORTED TO EACH OTHER. IF THE BLUE WIRE TO THE COMPRESSOR FROM THE ELECTRONIC CLIMATE CONTROL (ECC) POWER MODULE IS MISROUTED, IT CAN PULL THE TWO CONNECTING DIODE WIRES TOGETHER, SHORTING OUT THE DIODE. INSULATE AND REROUTE WIRES AS NECESSARY.

GR. 9 INOPERATIVE CRUISE CONTROL - 1981 CARS

INOPERATIVE CRUISE CONTROL MAY RESULT IF THE 8 VOLT LINE TO THE SPEED SENSOR IS PINCHED AT THE STEERING COLUMN BRACKET CAUSING A SHORT TO GROUND. THIS CONDITION MAY PRODUCE THE FOLLOWING TROUBLE CODES (30, 33, 34, 36) AND BRING DOWN OTHER 5 VOLT OUTPUT SIGNALS. REPAIR THE PINCHED WIRES AT THE STEERING COLUMN BRACKET TO CORRECT THE CONDITION.

GR. 1 ECC GROUNDING MUST BE PROPER FOR ECC FUNCTIONING

THE ELECTRONIC CLIMATE CONTROL (ECC) WILL NOT FUNCTION IF IT IS NOT GROUNDED PROPERLY. FOR PROPER GROUNDING, THE GROUND WIRES SHOULD BE CONNECTED BY THE BOLT UNDER THE CARPET JUST RIGHT OF THE LOWER BLOWER VENT ON THE PASSENGER SIDE ILLUSTRATED BELOW.

GR. 8 DFI RANGE COMPUTER MALFUNCTION

A POOR CONNECTION AT THE DIGITAL DISPLAY ON DFI CARS CAN CAUSE RANGE COMPUTERS TO BE INOPERATIVE OR NOT PROPERLY DISPLAYED. CHECK FOR SECURE CONNECTION BEFORE REPLACING ANY COMPONENT.

GR. 8 ACCESSORY RELAY PANEL (DEVILLE AND BROUGHAM) ILLUSTRATION CORRECTIO

CORRECTION TO ILLUSTRATION ON PAGE 8A-4 OF 1981 ADVANCE SERVICE INFORMATION MANUAL IS SHOWN BELOW, IDENTIFIED BY ASTERISKS.

GR. 6C ECM REPLACEMENT FOR ALL 1981'S

SERVICE ECM'S FOR ALL 1981 VEHICLES WILL NOT HAVE PROM'S IN THEM. THE PROM WILL HAVE TO BE TRANSFERRED FROM THE ECM BEING REPLACED TO THE NEW SERVICE ECM. REFER TO THE ADVANCE SERVICE INFORMATION MANUAL, PAGE 6C-146, FOR THE DFI PROM REPLACEMENT PROCEDURE. (FOR YOUR INFORMATION, PROM'S ARE CALLED "CALIBRATORS" BY GMPD.)

GR. 7 BROKEN SPEEDOMETER DRIVEN GEAR SHAFT

IN THE EVENT THAT A SPEEDOMETER BECOMES INOPERATIVE AS A RESULT OF A BROKEN SPEEDO DRIVEN GEAR SHAFT, THE SPEEDOMETER SLEEVE ALSO BE REPLACED TO PREVENT A RECURRENCE OF THIS CONDITION.

GR. 0 REVISED BELT TENSION GAGE - ALL VEHICLES

BELT TENSION GAGE J-23600 HAS BEEN SUPERSEDED BY BELT TENSION J-23600-B WHICH IS AVAILABLE THROUGH KENT-MOORE TOOL DIVISION

GR. 6C FUEL GAGE AND FILTER ITEMS

REPORTS HAVE BEEN RECEIVED OF ENGINES RUNNING OUT OF FUEL WHEN GAGE READS 1/4 FULL OR ONLY SLIGHTLY LESS THAN 1/4 FULL. INVESTIGATIONS INDICATE THAT THE ABSENCE OF THE FILTER FROM PICKUP TUBE AND SENDING UNIT OR THE MISPOSITIONING OF THE FILTER THE TUBE MAY BE THE CAUSE OF THIS CONDITION.

THE FUEL GAGE FILTER NOT ONLY ACTS AS A FOREIGN MATERIAL FILTER BUT ALSO ACTS AS A WICK WHEN THE FUEL LEVEL BECOMES LOW. THIS FORMATION APPLIES ONLY TO THOSE VEHICLES EQUIPPED WITH THE WATER-IN FUEL INDICATOR UNITS.

GR. 0 ELECTRIC CIRCUIT DIAGRAM SET AVAILABLE

THE 1981 ELECTRICAL CIRCUIT DIAGRAM SET, CATALOG NO. S-1806 IS NOW AVAILABLE THROUGH HELM, INC., POST OFFICE BOX 3617, HIGHLAND PARK, MICHIGAN 48203.

GR. 0 LABOR TIME GUIDE ALLOWANCE INCREASES AND CHANGES

THE FOLLOWING 1979, 1980 LABOR TIME ALLOWANCES ARE INCREASED REVISED, OR ADDED AS INDICATED, EFFECTIVE IMMEDIATELY.

PAGE OPERATION NO. TITLE

B-5D B8520 MOLDING, BACK WINDOW REVEAL - 1981 R & R OR REPLACE

C-1B C1440 WEATHERSTRIP, SUNROOF SLIDING 1980 PANEL - ALIGN OR REPLACE

C-1B C1460 WEATHERSTRIP, SUNROOF HOUSING 1980 MODULE - ALIGN OR REPLACE

E-5E E9040 PUMP ASSEMBLY, POWER STEERING - 1981 R & R OR REPLACE (DFI)

J-1A J1000-40 ADD - TO REPLACE DIESEL BASIC 1979 SERVICE ENGINE

J-4F J5550 SOLENOID ASSY., VALVE 1980 J5551 SELECTOR (DFI) - REPLACE

J-5A J1200 CRANKSHAFT - REPLACE 1981 (V-6) ADD - TO R & R CYLINDER HEAD J-4C ONE 1980 BOTH

J-4F J5530 SENSOR, COOLANT TEMPERATURE 1981 (DFI) - REPLACE

K-1C K6620 SERVO ASSEMBLY, INTERMEDIATE - 1981 (T325) R & R OR REPLACE (DIESEL)

N-6A N2925 RELAY, TAIL LAMP - REPLACE 1980-81

R-1A R0410 ESCUTCHEON, ANTENNA - REPLACE 1980-81

R-5A R4650 GARAGE DOOR OPENER TRANSMITTER 1980-81 R4651 GARAGE DOOR OPENER RECEIVER R4652 GARAGE DOOR OPENER POWER PACK

NOTE: TOTAL TIME TO REPLACE ONE O COMPONENTS, NOT TO EXCEED .2 HOUR.

PUBLISHED TIME CHANGE TO C E K C E K

NONE .2 - .7

.9 .9 .9 1.9 1.9 1.9

1.8 1.8 1.8 2.2 2.2 2.2

.6 .6 .6 .8 .8 .8

- 5.6 5.6 - 9.5 9.5 .4 .4 .4 .6 .6 .6

.4 .4 .4 .6 .6 .6

NONE 1.1 1.1 1.1

NONE 1.8 1.8 1.8

.4 .4 .4 .9 .9 .9

.3 .3 .3 1.1 1.1 1.1

- .3 .3 - .6 .6

NONE - - .2

NONE .2 .2 .2

N0NE .2 .2 .2

NONE .2 .2 .2

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.