DTC Troubleshooting

DTC Troubleshooting: P0716 (15), P0717 (15)

DTC P0716: Input Shaft (Mainshaft) Speed Sensor (Range/Performance)

DTC P0717: Input Shaft (Mainshaft) Speed Sensor (No Signal Input)

NOTE:

- Before you troubleshoot, record all freeze data and any on-board snapshot with the HDS, and review General Troubleshooting Information. How to Troubleshoot A/T Systems

- This code is caused by an electrical circuit problem and cannot be caused by a mechanical problem in the transmission.

1. Clear the DTC with the HDS.

2. Check for proper input shaft (mainshaft) speed sensor installation. A/T Input Shaft (Mainshaft) Speed Sensor Replacement (A/T) If the sensor is installed improperly, correct the problem, then go to step 31.

3. 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.

4. Start the engine. Disable the VSA by pressing the VSA OFF switch for VSA-equipped model. Run the vehicle in D at speeds above 12 mph (20 km/h) for at least 10 seconds. Slow down and stop the wheels.

5. Monitor the OBD status for P0716 or P0717 in the DTCs/Freeze Data in A/T Mode Menu for a pass/fail.

Does the HDS indicate FAILED?
YES - Go to step 6.

NO - Intermittent failure, the system is OK at this time. Check for loose or poor connections at the PCM and input shaft (mainshaft) speed sensor connectors. If the HDS indicates NOT COMPLETED, return to step 4 and recheck.


6. Turn the ignition switch to LOCK (0).

7. Jump the SCS line with the HDS.

8. Disconnect PCM connector C (49P).

9. Check for continuity between PCM connector terminal C44 and body ground, and between terminal C48 and body ground.

Is there continuity?
YES - Go to step 10.

NO - Repair open in the wires between PCM connector terminals C44, C48 and ground (G101), or repair poor ground (G101), then go to step 30.






10. Connect PCM connector C (49P).

11. Disconnect the input shaft (mainshaft) speed sensor connector.

12. Turn the ignition switch to ON (II).

13. Measure the voltage between input shaft (mainshaft) speed sensor connector terminal No. 1 and body ground.

Is there about 5 V?
YES - Go to step 14.

NO - Go to step 21.






14. Measure the voltage between input shaft (mainshaft) speed sensor connector terminal No. 2 and No. 3.

Is there about 5 V?
YES - Replace the input shaft (mainshaft) speed sensor, A/T Input Shaft (Mainshaft) Speed Sensor Replacement (A/T) then go to step 30.

NO - Go to step 15.






15. Turn the ignition switch to LOCK (0).

16. Jump the SCS line with the HDS.

17. Disconnect PCM connector B (49P).

18. Check for continuity between input shaft (mainshaft) speed sensor connector terminal No. 2 and body ground.

Is there continuity?
YES - Repair short in the wire between PCM connector terminal B18 and the input shaft (mainshaft) speed sensor connector, then go to step 30.

NO - Go to step 19.






19. Check for continuity between PCM connector terminal B34 and input shaft (mainshaft) speed sensor connector terminal No. 3.

Is there continuity?
YES - Go to step 20.

NO - Repair open in the wire between PCM connector terminal B34 and the input shaft (mainshaft) speed sensor, then go to step 30.






20. Check for continuity between PCM connector terminal B18 and input shaft (mainshaft) speed sensor connector terminal No. 2.

Is there continuity?
YES - Go to step 25.

NO - Repair open in the wire between PCM connector terminal B18 and the input shaft (mainshaft) speed sensor, then go to step 30.






21. Turn the ignition switch to LOCK (0).

22. Jump the SCS line with the HDS.

23. Disconnect PCM connector B (49P).

24. Check for continuity between PCM connector terminal B19 and input shaft (mainshaft) speed sensor connector terminal No. 1.

Is there continuity?
YES - Go to step 25.

NO - Repair open in the wire between PCM connector terminal B19 and the input shaft (mainshaft) speed sensor, then go to step 30.






25. Reconnect all connectors.

26. Update the A/T software in the PCM if it does not have the latest software, ECM/PCM Update or substitute a known-good PCM. Initial Inspection and Diagnostic Overview

27. Start the engine. Disable the VSA by pressing the VSA OFF switch for VSA-equipped model. Run the vehicle in D at speeds above 12 mph (20 km/h) for at least 10 seconds. Slow down and stop the wheels.

28. Check for Pending or Confirmed DTCs with the HDS.

Is DTC P0716 or P0717 indicated?
YES - If the PCM was updated, substitute a known-good PCM, Initial Inspection and Diagnostic Overview then recheck. If the PCM was substituted, go to step 1.

NO - Go to step 29.


29. Monitor the OBD status for P0716 or P0717 in the DTCs/Freeze Data in A/T Mode Menu for a pass/fail.

Does the HDS indicate PASSED?
YES - If the PCM was updated, troubleshooting is complete. If the PCM was substituted, replace the original PCM. Service and Repair If any other DTCs were indicated on step 28, go to the indicated DTC's troubleshooting.

NO - Check for poor connections and loose terminals at the input shaft (mainshaft) speed sensor and the PCM. If the PCM was updated, substitute a known-good PCM, Initial Inspection and Diagnostic Overview then recheck. If the PCM was substituted, go to step 1. If the HDS indicates NOT COMPLETED, return to step 27 and recheck.


30. Reconnect all connectors.

31. Clear the DTC with the HDS.

32. Start the engine. Disable the VSA by pressing the VSA OFF switch for VSA-equipped model. Run the vehicle in D at speeds above 12 mph (20 km/h) for at least 10 seconds. Slow down and stop the wheels.

33. Check for Pending or Confirmed DTCs with the HDS.

Is DTC P0716 or P0717 indicated?
YES - Check for poor connections and loose terminals at the input shaft (mainshaft) speed sensor and the PCM, then go to step 1.

NO - Go to step 34.


34. Monitor the OBD status for P0716 or P0717 in the DTCs/Freeze Data in A/T Mode Menu for a pass/fail.

Does the HDS indicate PASSED?
YES - Troubleshooting is complete. If any other DTCs were indicated on step 33, go to the indicated DTC's troubleshooting.

NO - Check for poor connections and loose terminals at the input shaft (mainshaft) speed sensor and the PCM, then go to step 1. If the HDS indicates NOT COMPLETED, go to step 32 and recheck.