1990 Ford Probe GL, AutomaticFACTORY OEM SERVICE PROCEDURE

Test B1 - Vehicle Speed Sensor (VSS): Notes

Fig 1: Vehicle Speed Sensor Circuits
G90D09219
CIRCUIT PIN IDENTIFICATION

Circuit Breakout Box Pin ECA Pin
ATX Non-Turbo
GND 39, 40, 44 3A
VSS 3 1M
Except ATX Non-Turbo
GND 39, 40, 44 3A
VSS 3 NA
NOTE: Enter this test only when Code 06 is displayed during QUICK TEST procedures. This test is intended to diagnose only vehicle speed sensor circuits.
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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.

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