SERVICE MANUAL UPDATE-SEC.6E REVISED CODE 43 CHART. Geo Spectrum 1987

For 1990-2009 cars

# SERVICE MANUAL UPDATE-SEC.6E REVISED CODE 43 CHART

#### Model and Year: 1987-88 R CAR WITH 1.5L (VIN CODE 9) ENGINE

The Code 43 diagnostic chart "Electronic Spark Control (ESC) (Knock Control Failure)" is revised to correct the resistance check of the knock sensor.

This chart will replace the present Code 43 Chart (Electronic Spark Control (ESC) Knock Control Failure) in Section 6E "Driveability And Emissions" in all 1987-1988 "R" Service Manuals with 1.5L (VIN 9) turbo engine applications.

Page 6E12-90 in 1987 manual Page 6E13-90 in 1988 manual

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.