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Home >> GMC >> 1987 >> Forward Control 7.4 W, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 17 (Engine Controls - Tests W/Codes - 7.4L) >> Trouble Code Charts >> Code 16, VSS Buffer Fault - "G" Series >> Notes

Code 16, VSS Buffer Fault - "G" Series: Notes

WARNING: This page does not describe the selected car, but rather 18 other vehicles, including the 1994 GMC Vandura Special, 1994 GMC Vandura, 1994 GMC Suburban, 1994 GMC Rally Camper Special, and 1994 GMC Rally. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: Test number refers to number on diagnostic chart.
  1. Checks for battery voltage at VSS buffer.
  2. Tests for proper ground path for VSS buffer
  3. Tests for vss buffer signal to PCM
  4. Tests for faulty connections and a faulty VSS buffer
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