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, 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 If the sensor is installed improperly, correct the problem, then go to step 33.

3. Raise the vehicle on a lift, make sure it is securely supported, and allow all four wheels to rotate freely.

4. Start the engine, disable the VSA by pressing the VSA OFF switch. Run the vehicle in either 2nd, 3rd, 4th, or 5th gear (not 1st) with the shift lever 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 - If the HDS indicates PASSED, intermittent failure, the system is OK at this time. Check for loose or poor connections between the PCM and input shaft (mainshaft) speed sensor connectors. If the HDS indicates NOT COMPLETED, go to step 4.


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

7. Jump the SCS line with the HDS.

8. Disconnect PCM connectors B (49P) and C (49P).

9. Check for continuity between PCM connector terminals B41 and body ground, and between C41 and body ground.

Is there continuity?
YES - Go to step 10.

NO - Repair open in the wires between PCM connector terminals B41, C41, and body ground (G101), or repair poor body ground (G101), then go to step 31.






10. Connect PCM connectors B (49P) and 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 18.

NO - Go to step 14.






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

15. Jump the SCS line with the HDS.

16. Disconnect PCM connector C (49P).

17. Check for continuity between PCM connector terminal C12 and input shaft (mainshaft) speed sensor connector terminal No. 1.

Is there continuity?
YES - Go to step 26.

NO - Repair open in the wire between PCM connector terminal C12 and the input shaft (mainshaft) speed sensor, then go to step 31.






18. 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, A/T Input Shaft (Mainshaft) Speed Sensor Replacement then go to step 26.

NO - Go to step 19.






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

20. Jump the SCS line with the HDS.

21. Disconnect PCM connector B (49P).

22. 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 B37 and the input shaft (mainshaft) speed sensor connector, then go to step 31.

NO - Go to step 23.






23. Disconnect PCM connector C (49P).

24. Check for continuity between PCM connector terminal C15 and input shaft (mainshaft) speed sensor connector terminal No. 3.

Is there continuity?
YES - Go to step 25.

NO - Repair open in the wire between the input shaft (mainshaft) speed sensor connector and PCM connector terminal C15, then go to step 31.






25. Check for continuity between PCM connector terminal B37 and input shaft (mainshaft) speed sensor connector terminal No. 2.

Is there continuity?
YES - Go to step 26.

NO - Repair open in the wire between PCM connector terminal B37 and the input shaft (mainshaft) speed sensor, then go to step 31.






26. Reconnect all connectors.

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

28. Start the engine, disable the VSA by pressing the VSA OFF switch, run the vehicle in either 2nd, 3rd, 4th, or 5th gear (not 1st) with the shift lever in D at speeds above 12 mph (20 km/h) for at least 10 seconds. Slow down and stop the wheels.

29. Check for Temporary DTCs or 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 30.


30. 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 29, go to the indicated DTC's troubleshooting.

NO - If the HDS indicates FAILED, check for poor connections and 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 recheck. If the PCM was substituted, go to step 1. If the HDS indicates NOT COMPLETED, go to step 28.


31. Reconnect all connectors.

32. Clear the DTC with the HDS.

33. Start the engine, disable the VSA by pressing the VSA OFF switch, run the vehicle in either 2nd, 3rd, 4th, or 5th gear (not 1st) with the shift lever in D at speeds above 12 mph (20 km/h) for at least 10 seconds. Slow down and stop the wheels.

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

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

NO - Go to step 35.


35. 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 34, go to the indicated DTC's troubleshooting.

NO - If the HDS indicates FAILED, check for poor connections and 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 33.