MISLABELED CONNECTOR MAY CAUSE DIAGNOSIS CONFUSION. GMC Truck S15 Pickup - 2WD 1987

For 1990-2009 cars

# MISLABELED CONNECTOR MAY CAUSE DIAGNOSIS CONFUSION

#### MODELS: 1985-88 G,S,R, AND M VEHICLES

Some 1985-88 vehicles may have an electrical connector at the vehicle speed sensor (VSS), which is improperly labeled. The connector will work properly but could cause confusion if electrical troubleshooting is necessary. Figure No. 1 shows a properly labeled connector. The improperly labeled connectors have the "A" and "C" reversed. All Service Manual terminal call-outs use the labeling as shown in Figure No. 1.

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.