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DTC P0500: No Vehicle Speed Sensor Signal

NOTE: For connector terminal ID, see CONNECTOR IDENTIFICATION  . For wiring diagram, see WIRING DIAGRAMS article.
NOTE: Vehicle speed sensor signal is monitored when engine is running for more than 31 seconds, engine coolant temperature is more than 180°F (82°C), transaxle is not in Park or Neutral, brakes are not applied, engine RPM is more than 1800 RPM and Manifold Absolute Pressure (MAP) sensor vacuum is less than 11 in. Hg. DTC may be stored in Powertrain Control Module (PCM) when PCM does not receive a vehicle speed sensor signal from Transmission Control Module (TCM) for more than 11 seconds. Possible causes are; transaxle DTCs exist, defective PCM or TCM, defective output speed sensor, pinion factor not programmed, or defective connectors or wiring.
  1. Raise and support vehicle so front wheels are free to rotate. Start engine. Using scan tool, read vehicle speed sensor. Place transaxle in any forward gear. If scan tool displays more than zero MPH, go to next step. If scan tool displays zero MPH, go to step  3 .
  2. Check for defective wiring or connections at TCM and PCM. The TCM delivers vehicle speed signal to PCM. The TCM and PCM are located at driver's side front corner of engine compartment, just below air cleaner assembly. See Fig 1 . If defective wiring or connections exist, repair as necessary. Perform TEST VER-5A  . If no defective wiring or connections exist, test is complete.
    Fig 1: Locating PCM, Transmission Control Module (TCM) & Identifying PCM Connectors
    G00005732Courtesy of DAIMLERCHRYSLER CORPORATION
  3. Turn ignition on with engine off. Using scan tool, check for any TCM stored DTCs for the transaxle. If DTCs P0731 through P0734, P0715, P0720, P0736 or P01794 for the transaxle do not exist or pinion factor is not programmed is not displayed, go to next step. If DTCs P0731 through P0734, P0715, P0720, P0736 or P01794 for the transaxle exist, perform repair procedures as necessary. See CHRYSLER 41TE/AE ELECTRONIC CONTROLS article in AUTOMATIC TRANSMISSIONS. If pinion factor is not programmed is displayed, reprogram pinion factor. See COMPUTER RELEARN PROCEDURES article in GENERAL INFORMATION.
  4. Ensure ignition is off. Disconnect TCM 60-pin connector. The TCM is located at driver's side front corner of engine compartment, just below air cleaner assembly. See Fig 1 .
  5. Connect jumper wire to terminal No. 58 (White/Orange wire) on TCM connector This is the vehicle speed sensor signal circuit. Turn ignition on with engine off. Using scan tool, read vehicle speed sensor signal while momentarily touching remaining end of jumper wire to ground. If scan tool displays more than zero MPH, go to next step. If scan tool displays zero MPH, go to  13 .
  6. Turn ignition off. Ensure TCM connector is still disconnected. Using ohmmeter, check resistance between ground and terminal No. 14 (Light Green/White wire) on TCM connector. If resistance is less than 5 ohms, go to next step. If resistance is 5 ohms or more, go to step  9 .
  7. Disconnect output speed sensor connector. Output speed sensor is located on side of transaxle. See Fig 2 .
    Fig 2: Locating Output Speed Sensor
    G96G04261Courtesy of DAIMLERCHRYSLER CORPORATION
  8. Using ohmmeter, check resistance between ground and terminal No. 14 (Light Green/White wire on TCM connector. If resistance is 5 ohms or more, replace output speed sensor. Perform TEST VER-5A  . If resistance is less than 5 ohms, repair short to ground on Light Green/White or Light Green/Violet wire between TCM and output speed sensor. This wire is Light Green/White at TCM connector and changes to Light Green/Violet at lower 10-pin connector located just in front of TCM and goes to output speed sensor as a Light Green/Violet wire. Perform TEST VER-5A  .
  9. Using ohmmeter, check resistance between terminals No. 13 (Dark Blue/Black wire) and No. 14 (Light Green/White wire) on TCM connector. If resistance is not 300-1200 ohms, go to next step. If resistance is 300-1200 ohms, replace TCM. Reprogram pinion factor and perform shift quality quick learn procedure. See COMPUTER RELEARN PROCEDURES article in GENERAL INFORMATION. Perform TEST VER-5A  .
  10. Disconnect output speed sensor connector. Output speed sensor is located on side of transaxle. See Fig 2 .
  11. Using ohmmeter, check resistance between terminal No. 1 (Dark Blue/Brown wire) on output speed sensor connector and terminal No. 13 (Dark Blue/Black wire) on TCM connector. This wire is Dark Blue/Black at TCM connector and changes to Dark Blue/Brown at lower 10-pin connector located just in front of TCM and goes to output speed sensor as a Dark Blue/Brown wire. If resistance is less than 5 ohms, go to next step. If resistance is 5 ohms or more, repair open on Dark Blue/Brown or Dark Blue/Black wire between TCM and output speed sensor. Perform TEST VER-5A  .
  12. Using ohmmeter, check resistance between terminal No. 2 (Light Green/Violet wire) on output speed sensor connector and terminal No. 14 (Light Green/White wire) on TCM connector. This wire is Light Green/White at TCM connector and changes to Light Green/Violet at lower 10-pin connector located just in front of TCM and goes to output speed sensor as a Light Green/Violet wire. If resistance is less than 5 ohms, replace output speed sensor. Perform TEST VER-5A  . If resistance is 5 ohms or more, repair open on Light Green/Violet or Light Green/White wire between TCM and output speed sensor. Perform TEST VER-5A  .
  13. Ensure ignition is off. Disconnect PCM connectors. PCM is located at driver's side front corner of engine compartment, just below air cleaner assembly. See Fig 1 .
  14. Using ohmmeter, check resistance between terminal No. 58 (White/Orange wire) on TCM connector and terminal No. 66 (White/Orange wire) on PCM connector C2. If resistance is less than 5 ohms, go to next step. If resistance is 5 ohms or more, repair open on White/Orange wire between TCM and PCM. Perform TEST VER-5A  .
  15. Ensure TCM connector is still disconnected. Using ohmmeter, check resistance between ground and terminal No. 66 (White/Orange wire) on PCM connector C2. If resistance is 5 ohms or more, replace PCM. Perform TEST VER-5A  . If resistance is less than 5 ohms, repair short to ground on White/Orange wire between PCM and TCM. Perform TEST VER-5A  .
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