DTC P0501: Range/Performance Problem in CVT Speed Sensor Circuit
- Before you troubleshoot, record all freeze data and any on-board snapshot with the HDS, and review General Troubleshooting Information (see GENERAL TROUBLESHOOTING INFORMATION ).
- This code is caused by an electrical circuit problem and cannot be caused by a mechanical problem in the transmission.
- Turn the ignition switch to ON (II).
- Clear the DTC with the HDS.
- Block the rear wheels, and raise the front of the vehicle. Make sure it is securely supported, and allow the front wheels to rotate freely, or raise the vehicle on a lift.
- Start the engine, disable the VSA by pressing the VSA OFF button (if equipped), run the vehicle with the shift lever in L, and the engine speed at 4,500 rpm or higher, then release the accelerator without pressing it again, for at least 6 seconds. Slow down and stop, the wheels.
- Monitor the OBD STATUS for P0501 in the DTCs MENU with the HDS.
Does the HDS indicate FAILED?
YES -Replace the vehicle speed sensor (see VEHICLE SPEED SENSOR REPLACEMENT ), then go to step 6.
NO -If the HDS indicates PASSED, intermittent failure, the system is OK at this time. Check for poor connections or loose terminals between the PCM and the vehicle speed sensor. If the HDS indicates NOT COMPLETED, go to step 4.
- Turn the ignition switch to ON (II).
- Clear the DTC with the HDS.
- Start the engine, run the vehicle with the shift lever in D, and keep the vehicle at speeds over 24 mph (40 km/h) while monitoring the Output shaft (Driven pulley) Speed rpm in the Data List with the HDS, then release the accelerator without pressing it again, for at least 7 seconds. Slow down and stop the wheels.
- Check for Pending or Confirmed DTCs with the HDS.
Is DTC P 0501 indicated?
YES -Check for poor connections or loose terminals between the vehicle speed sensor and the PCM, then go to step 11.
NO -Go to step 10.
- Monitor the OBD STATUS for P0501 in the DTCs MENU with the HDS.
Does the HDS indicate PASSED?
YES -Troubleshooting is complete. If any other Pending or Confirmed DTCs were indicated in step 9, go to the indicated DTC's troubleshooting.
NO -If the HDS indicates FAILED, check for poor connections or loose terminals between the vehicle speed sensor and the PCM, then go to step 1. If the HDS indicates NOT COMPLETED, go to step 8.
- Update the PCM if it does not have the latest software (see PCM UPDATE ), or substitute a known-good PCM (see SUBSTITUTING THE PCM ).
- Start the engine, run the vehicle with the shift lever in D, and keep the vehicle at speeds over 24 mph (40 km/h) while monitoring the Output shaft (Driven pulley) Speed rpm in the Data List with the HDS, then release the accelerator without pressing it again, for at least 7 seconds.
- Check for Pending or Confirmed DTCs with the HDS.
Is DTC P0501 indicated?
YES -Check for poor connections or loose terminals between the vehicle speed sensor and the PCM. If the PCM was updated, substitute a known-good PCM (see SUBSTITUTING THE PCM ), then go to step 12. If the PCM was substituted, go to step 1.
NO -Go to step 14.
- Monitor the OBD STATUS for P0501 in the DTCs MENU with the HDS.
Does the HDS indicate PASSED?
YES -If the PCM was updated, troubleshooting is complete. If the PCM was substituted, replace the original PCM (see PCM REPLACEMENT ). If any other Pending or Confirmed DTCs were indicated in step 13, go to the indicated DTC's troubleshooting.
NO -If the HDS indicates FAILED, check for poor connections or loose terminals between the vehicle speed sensor and the PCM. If the PCM was updated, substitute a known-good PCM (see SUBSTITUTING THE PCM ), then go to step 12. If the PCM was substituted, go to step 1. If the HDS indicates NOT COMPLETED, go to step 12.