DIGITAL AND ELECTROMECHANICAL INSTRUMENT CLUSTERS. GMC Truck S15 Pickup - 2WD 1990

For 1990-2009 cars

# DIGITAL AND ELECTROMECHANICAL INSTRUMENT CLUSTERS

#### MODELS: 1989 C/K, S/T, AND M VANS 1990 C/K, R/V, S/T, G AND M VANS

THIS BULLETIN CANCELS AND REPLACES GMC TRUCK SERVICE BULLETIN 89-T-17, CORPORATE NUMBER 868305R TO ADD THE 1990 MODELS, AND TO UPDATE THE LIST OF SERVICE CENTERS. ALL COPIES OF 89-T-17 SHOULD BE DISCARDED.

The purpose of this bulletin is to announce an Exchange/Repair Program for instrument clusters used on the above listed models. This program provides remanufactured instrument clusters in exchange for inoperative clusters.

#### IMPORTANT: The 1989 VAN and 1990 R/V, G and M van clusters have nonreplaceable gages and MUST be serviced using the "Instrument Cluster Procedure" listed below.

The gages in the 1989-90 C/K and S/T clusters are individually serviceable, and available through GMSPO or service centers through cluster exchange. The dealer should use good business judgement when determining which course of repair to follow on these models.

Instrument clusters are serviced by the exchange units listed in this bulletin. See pages with illustrations for part numbers and applications.

Exchange units are obtained by telephoning any of the twenty-eight authorized AC-Delco Service Centers listed on the last three (3) pages of this bulletin. They are shipped with memo billings within 24 hours of the request via next day UPS. The memo billings are cancelled when the inoperative instrument clusters are received by the service center from which units were obtained. If a unit is on back order at one of the service centers, it may be ordered from any of the other service centers.

Please adhere to the following procedure when a vehicle requires exchange service for an inoperative instrument cluster:

#### NOTICE: If odometer is reset, refer to applicable "Policies And Procedures Manual," Section 1.10.3 Odometer Servicing. Odometer Servicing labels can be obtained from local office supply companies.

INSTRUMENT CLUSTER PROCEDURE:

1. Follow the diagnostics procedure in the appropriate Service Manual precisely and completely. Many conditions perceived by the observer to be in the instrument cluster are actually conditions with remote sensors and connectors. Proper diagnostics will identify the source of the problem and avoid unnecessary removal and shipping of functional assemblies to service centers.

2. When diagnostics are complete and the condition is determined to require an exchange cluster, determine which exchange cluster is required by matching the unit to the cluster illustrations on the attached pages. If the odometer is part of the exchange unit, tell the service center what mileage the cluster should be set at.

3. Upon receiving the exchange unit from the service center, take it into the vehicle still packed in the reusable shipping container. The container protects it from damage due to static electricity. Use care in handling the exchange unit and the inoperative cluster. Hands must be free of dirt and grease. Avoid touching electronic components, as electro-static discharge can degrade performance or cause failure.

4. Remove the inoperative instrument cluster and replace it with the exchange unit.

5. Include a description of the instrument cluster problem in the "Nature of Problem" area of the ACD-1078 form. Pack the inoperative instrument cluster in the reusable shipping container together with five (5) copies of the completed ACD-1078 warranty form.

6. Enclosed in the reusable container is an addressed shipping label. Attach this label to the outside of the box and ship immediately to the service center from which you obtained the exchange unit. The dealer copy of the ACD-1078 warranty form will be returned and the memo billing cancelled upon receipt of the inoperative instrument cluster at the service center.

7. Failure to return the inoperative instrument cluster in the special reusable container can result in a container replacement fee. Failure to return the ACD-1078 warranty form of the inoperative instrument cluster to the service center within 30 days of the date the exchange unit was shipped, can result in a repair fee or an instrument cluster replacement fee.

The success of the Instrument Cluster Exchange/Repair Program is dependent upon prompt return of the inoperative instrument cluster to the service center. Your cooperation is essential to maintaining sufficient quantities of exchange stock. INSTRUMENT AND DISPLAY SERVICE CENTERS

ARIZONA MICHIGAN Jimmy's Radio-TV Corporation Specmo Enterprises, Inc. 7882 East Gray Road 3890 W. 11 Mile Road Scottsdale, AZ 85260 Berkley, MI 48072 (602) 948-5717 (313) 399-7778 Toll Free - 1-800-528-2056 Toll Free - 1-800-545-7911 (AZ only) - Call Collect Toll Free - 1-800-545-7910

CALIFORNIA MINNESOTA Auto Electric Radio Auto Sound Entronix 1841 West Commonwealth 9600 - 54th Avenue Fullerton, CA92633 Minneapolis, MN 55442 (714) 871-7357 (612) 559-9654 Toll Free - 1-800-321-6969 Toll Free - 1-800-328-0795 (CA only) - 1-800-321-6970 (MN only) 1-800-742-0670

COLORADO MISSOURI Downtown Radio of Denver, Inc. Autronics Auto Spec. 2525 West Sixth Avenue 1450 Page Industrial Court Denver, CO 80204 St. Louis, MO 63132 (303) 573-6288 (314) 423-2323 Toll Free - 1-800-525-3539 Toll Free - 1-800-325-1325 (CO only) - 1-800-332-3815 (MO only) - 1-800-392-1516

FLORIDA NEW JERSEY Techni-Car, Inc. Eastern Electronics, Inc. 5688 West Crenshaw Street 180 Essex Street Tampa, FL 33634 Hackensack, NJ 07601 (813) 884-0022 (201) 342-3945 or (201) 342-6060 Toll Free - 1-800-822-0022 Toll Free - 1-800-221-2138 (FL only) - 1-800-662-0022 (NJ only) - 1-800-221-2143

GEORGIA NEW YORK Speedometer Service Company Model Electronics, Inc. 8471 Roswell Road 321 West Route 59 Atlanta, GA 30350 Nanuet, NY 10954 (404) 998-1666 (914) 623-8020 Toll Free - 1-800-241-2385 Toll Free - 1-800-433-9657 (GA only) - 1-800-332-1827 United Radio Service ILLINOIS 2949 Erie Boulevard East D & B Auto Radio, Inc. Syracuse, NY 13224 2140 Corporate Drive (315) 446-5570 Addison, IL 60101 Toll Free - 1-800-448-0944 (312) 916-8787 (NY only) - 1-800-962-0901 Toll Free - 1-800-323-4813 (IL only) - 1-800-942-8049 NORTH CAROLINA Downtown Radio Service, Inc. MARYLAND 2908 Stewart Creek Blvd. Caton Radio, Inc. Charlotte, NC 28216 6328 Baltimore Nt. Pk. (704) 391-0801 Catonsville, MD 21228 Toll Free - 1-800-537-0116 (301) 747-8667 (NC only) - 1-800-522-4706 Toll Free - 1-800-443-6709 (MD only) - 1-800-443-6709 OHIO Dayton Speedometer Serv., Inc. MASSACHUSETTS 660 North Main Street Modern Radio Shop Dayton, OH 45405 34 Broadway (513) 222-1491 Wakefield, MA 01880 Toll Free - 1-800-543-9687 (617) 246-2052 (OH only) - 1-800-543-0719 New England - 1-800-848-4001

OHIO continued VIRGINIA Electra Sound, Inc. Southern Autotronics, Inc. 5260 Commerce Parkway West 3300 Norfolk Street Parma, OH 44130 Richmond, VA 23230 (216) 433-9600 (804) 353-5400 Toll Free - 1-800-262-9606 Toll Free - 1-800-446-2880 (OH only) - 1-800-252-4200 (VA only) - 1-800-572-2880

PENNSYLVANIA WASHINGTON R. T. Grimm Co. Instrument Sales and Service, Inc. 400 Regis Avenue 18814 72nd Avenue South Pittsburgh, PA 15236 Kent, WA 98032 (412) 655-1574 (206)251-9092 Toll Free - 1-800-222-5509 (WA only) - 1-800-444-7976 (PA only) - 1-800-222-5509 CANADA H & R Radio Service Custone Auto Radio 139 York Road 1150 Champlain Court Warminster, PA 18974 Whitby, Ontario (215) 672-3707 Canada L1N 6A8 Toll Free - 1-800-523-6605 (416) 668-2664 (PA only) - 1-800-492-2074 Canada only - 1-800-263-7867

TENNESSEE G. LeBeau Limited Rickwood Radio Service of 8288 Pie IX Boulevard Tennessee, ]Inc. Montreal, Quebec 1830 Airlane Drive Canada H1Z 3V6 Nashville, TN 37210 (418) 687-5447 (615) 889-3270 Canada only - 1-800-363-5960 Toll Free - 1-800-423-4142 (TN only) - 1-800-423-4142 United Automotive Distributors, Ltd. TEXAS 5340 Lougheed Highway Speedometer Service, Inc. Burnaby, British Columbia 3227 Skylane Drive Canada V5B 2Z8 Carrollton (Dallas), TX 75006 (604) 291-7766 (214) 380-8944 Toll Free - 1-800-527-0108 SWITZERLAND (TX only) - 1-800-492-9026 Autometer AG Arsenalstrasse 51 TEXAS CH-6010 Kriens Zener Electronics, Inc. Switzerland 9434 Old Katy Road - 400 041-414241 Houston, TX 77055 862455 - Telexlex (713) 932-6360 041-418080 - Telefax (TX only) - 1-800-992-1092

1989 ST TRUCK Electromechanical Instrument Cluster ------------------------------------ Exchange Unit/OEM Application Part Number ------------- ----------- 25083728 U.S. - Gage - Shift Indicator

25083732 Canadian - Gage - Shift Indicator

25083735 Export - Gage - Shift indicator

25089141 U.S. - Gage - Medallion*

25089142 Canadian - Gage - Medallion*

25089143 Export - Gage - Medallion*

#### NOTE: This Instrument Cluster is serviced exclusively by AC-Delco Service Centers. The exchange unit consists of the complete instrument cluster.

*NOTE: The clusters with medallions are used in vehicles with shift on the floor. The medallion replaces the shift indicator on these clusters.

1989 ST TRUCK Electromechanical Instrument Cluster ------------------------------------ Exchange Unit/OEM Application Part Number ----------- ------------ 25085901 U.S. - Base - Shift Indicator

25085902 Canadian - Base - Shift Indicator

25089144 U.S. - Base - Medallion*

25089145 Canadian - Base - Medallion*

#### NOTE: This Instrument Cluster is serviced exclusively by AC-Delco Service Centers. The exchange unit consists of the complete instrument cluster.

*NOTE: The clusters with medallions are used in vehicles with shift on the floor. The medallion replaces the shift indicator on these clusters.

1989 ST TRUCK Vacuum Fluorescent Instrument Cluster -------------------------------------- Exchange Unit/OEM Application Part Number ------------ ----------- 25085887 Automatic Transmission - 4.3 L Engine

25085885 Manual Transmission - 2.8 L Engine

#### NOTE: This Instrument Cluster is serviced exclusively by AC-Delco Service Centers. The exchange unit consists of the complete instrument cluster.

1989 C AND K TRUCKS/GMT 400 Electromechanical Instrument Cluster ------------------------------------ Exchange Unit/OEM Application Part Number ------------ ----------- 25089369 or 16131515 U.S. - Gage - Gas

25089370 or 16131525 U.S. - Gage - Diesel

25089371 or 16131535 Canadian - Gage - Gas

25089372 or 16131545 Canadian - Gage - Diesel

25089373 or 16131575 Export (Saudi Arabia) - Gage - Gas

25089374 or 16131555 Export - Gage - Gas

25089375 or 16131565 Export - Gage - Diesel

#### NOTE: This instrument Cluster is serviced exclusively by AC-Delco Service Centers.

1989 C AND K TRUCKS / GMT 400 Electromechanical Instrument Cluster ------------------------------------ Exchange Unit/OEM Application Part Number ----------- ----------- 25089376 or 16131475 U.S. - Base - Gas

25089377 or 16131485 U.S - Base - Diesel

25089378 or 16131495 Canadian - Base - Gas

25089379 or 16131505 Canadian - Base - Diesel

#### NOTE: This Instrument Cluster is serviced exclusively by AC-Delco Service Centers. The exchange unit consists of the complete instrument cluster.

1989 M-VANS Electromechanical Instrument Cluster ------------------------------------ Exchange Unit/OEM Application Part Number ------------ ----------- 25083786 U.S. - Gage - Automatic Transmission

25083788 Canadian - Gage - Automatic Transmission

25083790 U.S. - Gage - Manual Transmission

25083792 Canadian - Gage - Manual Transmission

#### NOTE: This Instrument Cluster is serviced exclusively by AC-Delco Service Centers. The exchange unit consists of the complete instrument cluster.

1989 M-VANS Vacuum Fluorescent Instrument Cluster ------------------------------------- Exchange Unit/OEM Application Part Number ------------ ----------- 16128945 Automatic Transmission

16128955 Manual Transmission

16128965 Saudi Arabia

16131945 M-Van - VF - Exp. - AT

16131955 M-Van - VF - Exp. - MT

#### NOTE: This instrument Cluster is serviced exclusively by AC-Delco Service Centers. The exchange unit consists of the complete instrument cluster.

Exchange Unit/OEM Application Part Number ------------ ----------- 16124865 U.S. - Gage

16124895 Export - Gage

25088960 Canada - Gage

16124885 Export - Gage - Saudi

16133315 U.S. - Gage - 1 1 0 mph

16124875 U.S. - Gage - Diesel

16124905 Export - Gage

25088961 Canada - Gage

#### NOTE: This Instrument Cluster is serviced exclusively by AC-Delco Service Centers. The exchange unit consists of the complete instrument cluster.

Exchange Unit/OEM Application Part Number ----------- ------------ 25088289 U.S. - Gage - UFO

25088292 Canada - Gage - Fuel

25088294 Export - Gage - Fuel

25088290 U.S. - Gage - Diesel - LL4

25088293 Canada - Gage - Diesel - LL4

25088295 Export - Gage - Diesel

#### NOTE: This Instrument Cluster is serviced exclusively by AC-Delco Service Centers. The exchange unit consists of the complete instrument cluster.

Exchange Unit/OEM Application Part Number ------------ ----------- 25087904 U.S. - Gage - A.T.

25087905 Canada - Gage - A.T.

25087906 Export - Gage - A.T.

*25089152 U.S. - Gage - M.T.

*25089153 Canada - Gage - M.T.

*25089154 Export - Gage - M.T.

#### NOTE: This Instrument Cluster is serviced exclusively by AC-Delco Service Centers. The exchange unit consists of the complete instrument cluster. *"PRND21 " Display not used in MT (Manual Transmission) clusters.

Exchange Unit/OEM Application Part Number ----------- ----------- 25088409 Automatic Transmission - 4.3L Engine

25088736 Manual Transmission - 2.8L Engine

#### NOTE: This Instrument Cluster is serviced exclusively by AC-Delco Service Centers. The exchange unit consists of the complete instrument cluster.

Exchange Unit/OEM Part Number Application ------------ ----------- 25088301 U.S. - Gage - UFO

25088300 U.S. - Gage - Diesel LL4&LH6

25088305 Canada - Gage - Diesel LL4&LH6

25088310 Export - Gage - Diesel LL4&LH6

25088314 Canada - Gage - Fuel w/S.E.S.

25088315 Export - Gage - Fuel w/S.E.S.

#### NOTE: This Instrument Cluster is serviced exclusively by AC-Delco Service Centers. The exchange unit consists of the complete instrument cluster.

Exchange Unit/OEM Application Part Number ----------- ----------- 25088469 U.S. - Gage - A.T.

25088471 Canadian - Gage - A.T.

25088473 U.S. - Gage - M.T. 25088475 Canadian - Gage - M.T.

#### NOTE: This Instrument Cluster is serviced exclusively by AC-Delco Service Centers. The exchange unit consists of the complete instrument cluster.

Exchange Unit/OEM Application Part Number ----------- ----------- 25088476 Automatic Transmission

25088477 Manual Transmission

25088478 Saudi Arabia

16131965 M-Van - VF - Exp. - AT

16131975 M-Van - VF - Exp. - MT

#### NOTE: This instrument Cluster is serviced exclusively by AC-Delco Service Centers. The exchange unit consists of the complete instrument cluster.

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.