Test TC-7A - No Vehicle Speed Sensor Signal (DTC 15)
WARNING: This page is about a different car, the 1994 Plymouth Sundance, 1994 Plymouth Acclaim, 1994 Dodge Spirit, 1994 Dodge Shadow, and 1994 Chrysler LeBaron. 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 DIRECTORY
. For wiring diagrams, see WIRING DIAGRAMS
.
WARNING:
Keep hands and feet clear of rotating wheels.
- Raise and support vehicle under lower control arms, allowing wheels to spin free. Start engine. Using DRB, read vehicle speed sensor MPH value. Place transmission in a forward gear. If DRB displays more than 0 MPH, go to step 3). If DRB does not display more than 0 MPH, go to next step.
- If vehicle is equipped with an electronic automatic transmission, go to TEST TC-7B. If vehicle is not equipped with an electronic automatic transmission, go to TEST TC-7C .
- At this time, condition required to set trouble code is not present. VEHICLE SPEED SENSOR SIGNAL trouble code sets when Powertrain Control Module (PCM) does not see a speed signal on PCM terminal No. 47 for more than 11 seconds. Possible causes are: open or shorted VSS White/Orange wire, speedometer pinion factor not programmed, failed vehicle speed sensor (except 41TE transmission), failed Transmission Control Module (TCM) (41TE transmission), or failed PCM.