ELECTRONIC INSTRUMENTATION REPAIR INFORMATION

Applies To: 1986 Eldorado and Seville 1985-1986 FWD Deville and Fleetwood 1981-1985 Eldorado or Seville with Digital Instrument Cluster

This bulletin applies to all 1981-1986 Cadillacs with electronic instrument clusters (quartz and digital). This bulletin summarizes the exchange unit components, part numbers, and repair center information.

1986 Eldorado and Seville

The 1986 Eldorado and Seville digital speedometers and climate control driver information centers (CCDIC) are available as exchange units from the authorized AC-Delco Service Centers listed in this bulletin. The speedometers are exchanged as complete units with trip reset switch and do not require the removal of an electronic chip. The odometer memory is located in the BCM's EEPROM (Electrically Erasable Programmable Read Only Memory) chip. Refer to DSIB 86-1-8 for EEPROM exchange procedures.

1985-1986 De Ville and Fleetwood

1985-1986 De Villes and Fleetwoods with the quartz (swing needle) cluster require the odometer assembly to be transferred by the dealer from the inoperative cluster to the replacement cluster. If only the odometer needs replacement, parts can be ordered directly from GMWDD. Reference Serviceman Bulletin T-84-105, group 8, number 31 for the odometer replacement procedure.

1985-1986 De Villes and Fleetwoods with the digital cluster require the nonvolatile memory (NVM) chip to be transferred by the dealer from the inoperative cluster to the replacement cluster. If only the NVM chip requires replacement, the replacement part can be ordered through the AC-Delco Service Centers in this bulletin. The correct mileage information is needed by the service centers to program the replacement NVM chip.

1984-1985 Eldorado and Seville

Exchange units for 1981-1985 Eldorados and Sevilles consist of the tube and circuit board assembly only and are ordered through any of the AC-Delco Service Centers listed in this bulletin.

Service Part Number Information

Listed below are the exchange units for all Cadillac quartz and digital speedometers available through AC-Delco service centers for 1986 Eldorados and Sevilles, 1985-1986 FWD De Villes and Fleetwoods and 1981-1985 Eldorados and Sevilles with digital instrument clusters.

Year/Model Application Part Number ---------- ----------- ----------- 1986 "E/K" Digital Cluster 25084611 CCDIC With Rear Defog 25084612 CCDIC Without Rear Defog 25084613

1983-5 "E/K" Gasoline Cluster 25071722 Diesel Cluster 25071723

1982 "E/K" Gasoline Cluster 1546458 Diesel Cluster 1546467

1981 "E/K" Gasoline Cluster 1546326 Diesel Cluster 1546400

1986 "C" Quartz Speedometer U.S. 25059456 Quartz Speedometer Canada 25059457 Quartz Speedometer Export 25059458

1985-6 "C" Digital Cluster 25084596

1985 FWD "C" Quartz U.S. Gasoline 25054476 Quartz Canada Gasoline 25054477 Quartz Export Gasoline 25054478 Quartz Diesel 25078553

Warranty Claim Procedures

Established warranty claim procedures and packaging instructions (Reference DSIB 83-I-5) are still in effect. To maintain the exchange cluster supply it is essential that inoperative clusters be returned to the AC-Delco service center immediately after they are replaced.

Electronic Cluster/Display Repair Center Locations -------------------------------------------------- Repair Center Name Repair Center Location and Address Phone Numbers ---------------------- ----------- -------------- California Auto Electric Radio (714) 871-7426 1841 W. Commonwealth 1-800-321-6969 (Outside CA) Fullerton, CA 92633 1-800-321-6970 (CA Only)

Randazzo Auto Radio (408) 293-1920 233 Commercial Street 1-800-538-9702(outside CA) San Jose, CA 95112 1-800-662-9877(CA Only)

Florida Techni-Car, Inc. (813) 884-0022 5866 W. Crenshaw Street 1-800-822-0022 (Outside FL) Tampa, FL 33614 1-800-662-0022 (FL only)

Illinois D & B Auto Radio, Inc. (312) 678-8475 3725 N. 25th Avenue 1-800-323-4813 (Outside IL) Schiller Park, IL 60176 1-800-942-8049 (IL Only)

Michigan Specmo Instrument Service (313)399-5645 2344 N. Woodward Avenue 1-800-545-7911 (Outside MI) Royal Oak, MI 48073 1-900-545-7910 (MI Only)

New York United Radio Service (315) 446-5570 2949 Erie Blvd. East 1-800-448-0944 (Outside NY) Syracuse, NY 13224 1-800-962-0901 (NY Only)

Texas Speedometer Service, Inc. (214) 387-8511 14109 Inwood Road 1-800-527-0108 or 9(Outside TX) Dallas, TX 75234 1-800-492-9026 (TX Only)

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.