gmc Workshop Repair Guides

GMC Workshop Service and Repair Manuals

Initial Inspection and Diagnostic Overview|Page 3112 > < Speed Sensor Buffer & Digital Ratio Controller (D.R.A.C.)|Page 3109
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Vehicle Speed Sensor Signal Buffer: Initial Inspection and Diagnostic Overview

1. 

Check to see if BRAKE Fuse is blown. If fuse is blown, locate and repair source of overload. Replace fuse.

Initial Inspection and Diagnostic Overview|Page 3112 > < Speed Sensor Buffer & Digital Ratio Controller (D.R.A.C.)|Page 3109