Vehicle Speed Sensor: Turbo

1994 Plymouth Colt Vista Base, 2.4 G, AutomaticSECTION Turbo
WARNING: This page is about a different car, the 1994 Mitsubishi 3000GT and 1994 Dodge Stealth. However, it is still accessible from the selected car via links, so may be relevant.
  1. Remove knee protector, steering column covers and meter bezel. Disconnect speedometer cable and electrical harness. Remove instrument cluster. Remove vehicle speed sensor from instrument cluster.
  2. Connect a battery and resistor (3000-10,000 ohms) to vehicle speed sensor as shown. See Fig 1 . Using an analog voltmeter, measure voltage between sensor terminals No. 2 and 3. Rotate speed sensor input shaft and ensure voltage pulses 4 times per shaft revolution. Replace vehicle speed sensor if voltage does not pulse as specified.
Fig 1: Testing Vehicle Speed Sensor (Turbo)
G92A00745Courtesy of MITSUBISHI MOTOR SALES OF AMERICA
RENDER: 1.0x

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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.
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  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.