DTC Troubleshooting

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

DTC P0716: Problem in Input Shaft (Mainshaft) Speed Sensor Circuit

DTC P0717: Problem in Input Shaft (Mainshaft) Speed Sensor Circuit (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 (A/T)

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

1. Check for proper input shaft (mainshaft) speed sensor installation. Service and Repair

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

3. Clear the DTC with the HDS.

4. 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.

5. Start the engine, disable the VSA by pressing the VSA OFF switch (if equipped), run the vehicle with the shift lever in D, and keep the vehicle at speeds over 12 mph (20 km/h) for at least 10 seconds. Slow down and stop the wheels.

6. Monitor the OBD STATUS for P0716 or P0717 in the DTCs MENU with the HDS.

Does the HDS indicate FAILED?
YES - Go to step 7.

NO - If the HDS indicates PASSED, intermittent failure, the system is OK at this time. Check for poor connections or loose terminals between the input shaft (mainshaft) speed sensor and the PCM. If the HDS indicates NOT COMPLETED, go to step 5.


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

8. Jump the SCS line with the HDS.

9. Disconnect PCM connector C (44P).

10. Check for continuity between PCM connector terminal C40 and body ground, and between terminal C44 and body ground.

Is there continuity?
YES - Go to step 11.

NO - Repair open in the wires between PCM connector terminals C40, C44, and body ground (G101), or repair poor body ground (G101), then go to step 26.






11. Connect PCM connector C (44P).

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

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

14. 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 19.

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 (44P).

18. Check for continuity between PCM connector terminal B18 and input shaft (mainshaft) speed sensor connector terminal No. 1.

Is there continuity?
YES - Go to step 32.

NO - Repair open in the wire between PCM connector terminal B18 and the input shaft (mainshaft) speed sensor, then go to step 26.






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

Is there about 5 V?
YES - Replace the input shaft (mainshaft) speed sensor, Service and Repair then go to step 26.

NO - Go to step 20.






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

21. Jump the SCS line with the HDS.

22. Disconnect PCM connector B (44P).

23. Check for continuity between PCM connector terminal B17 and input shaft (mainshaft) speed sensor connector terminal No. 2.

Is there continuity?
YES - Go to step 24.

NO - Repair open in the wire between PCM connector terminal B17 and the input shaft (mainshaft) speed sensor, then go to step 26.






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

Is there continuity?
YES - Repair short to body ground in the wire between PCM connector terminal B17 and the input shaft (mainshaft) speed sensor, then go to step 26.

NO - Go to step 25.






25. Check for continuity between PCM connector terminal B33 and input shaft (mainshaft) speed sensor connector terminal No. 3.

Is there continuity?
YES - Go to step 32.

NO - Repair open in the wire between PCM connector terminal B33 and the input shaft (mainshaft) speed sensor, then go to step 26.






26. Reconnect all connectors.

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

28. Clear the DTC with the HDS.

29. Start the engine, disable the VSA by pressing the VSA OFF switch (if equipped), run the vehicle with the shift lever in D, and keep the vehicle at speeds over 12 mph (20 km/h) for at least 10 seconds. Slow down and stop the wheels.

30. Check for Temporary DTCs or DTCs with the HDS.

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

NO - Go to step 31.


31. Monitor the OBD STATUS for P0716 or P0717 in the DTCs MENU with the HDS.

Does the HDS indicate PASSED?
YES - Troubleshooting is complete. If any other Temporary DTCs or DTCs were indicated in step 30, go to the indicated DTC's troubleshooting.

NO - If the HDS indicates FAILED, check for poor connections or loose terminals between the input shaft (mainshaft) speed sensor and the PCM, then go to step 1. If the HDS indicates NOT COMPLETED, go to step 29.


32. Reconnect all connectors.

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

34. Start the engine, disable the VSA by pressing the VSA OFF switch (if equipped), run the vehicle with the shift lever in D, and keep the vehicle at speeds over 12 mph (20 km/h) for more than 10 seconds. Slow down and stop the wheels.

35. Check for Temporary DTCs or DTCs with the HDS.

Is DTC P0716 or P0717 indicated?
YES - Check for poor connections or loose terminals between 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 go to step 34. If the PCM was substituted, go to step 1.

NO - Go to step 36.


36. Monitor the OBD STATUS for P0716 or P0717 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. Service and Repair If any other Temporary DTCs or DTCs were indicated in step 35, go to the indicated DTC's troubleshooting.

NO - If the HDS indicates FAILED, check for poor connections or loose terminals between 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 go to step 34. If the PCM was substituted, go to step 1. If the HDS indicates NOT COMPLETED, go to step 34.