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Test TC-2A - No Vehicle Speed Sensor Signal

WARNING: This page is about a different car, the 1995 Dodge Pickup and 1995 Dodge Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: For circuit and connector terminal identification, see CONNECTOR IDENTIFICATION  . For wiring diagrams, see WIRING DIAGRAMS  section at the end of this article.
  1. Raise and support vehicle so that wheels are allowed to spin. Start engine. Using scan tool, read Vehicle Speed Sensor (VSS) signal. Put transmission in any forward gear. If VSS signal is NOT more than zero MPH, go to step 4).
  2. If VSS signal is more than zero MPH, condition required to set DTC is not present at this time. NO VEHICLE SPEED SENSOR SIGNAL DTC sets if Powertrain Control Module (PCM) does not see a VSS signal at PCM connector terminal No. 47, VSS signal circuit (White/Orange wire), under road load conditions. Possible causes are: open or shorted VSS signal circuit, open VSS 8-volt supply at sensor, open sensor ground, failed VSS, failed PCM or failed DRL module.
  3. Inspect all related wiring and connectors. Repair wiring and connectors as necessary. Perform TEST VER-1. If no problems are found with wiring and connectors, see INACTIVE DTC CONDITION  . Perform TEST VER-1.
  4. Turn ignition off. Disconnect VSS connector. Turn ignition on. Using scan tool in voltmeter mode, check voltage on VSS connector 8-volt supply circuit (Orange wire). If voltage is less than 7 volts, repair open Orange wire. Perform TEST VER-1.
  5. If voltage is more than 7 volts, check voltage on VSS signal circuit (White/Orange wire). If voltage is 4 volts or less, go to TEST TC-2B. If voltage is more than 4 volts, connect jumper wire to VSS connector White/Orange wire.
  6. While reading VSS signal on scan tool, tap other end of jumper wire to VSS connector sensor ground circuit (Black/Light Blue wire). If scan tool display is more than zero MPH, go to next step. If display is not more than zero MPH, go to step 8).
  7. Remove VSS. Inspect speedometer pinion. Repair as necessary. Perform TEST VER-1. If speedometer pinion is okay, replace vehicle speed sensor. Perform TEST VER-1.
  8. Put scan tool in ohmmeter mode. Check resistance of VSS connector sensor ground circuit (Black/Light Blue wire). If resistance is 5 ohms or more, repair Black/Light Blue wire for an open circuit to wiring harness splice. Perform TEST VER-1. If resistance is less than 5 ohms, go to TEST TC-2B.
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