P0717

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

NOTE:
^ Record all freeze data and review General Troubleshooting Information before you troubleshoot.
^ This code is caused by an electrical circuit problem and cannot be caused by a mechanical problem in the transmission.

1. Record all freeze data, and clear the DTC with the HDS.
2. Check for proper input shaft (mainshaft) speed sensor installation.
3. Raise the vehicle, make sure it is securely supported, and allow the all four wheels to rotate freely.
4. Start the engine, drive the vehicle in the D5 position, and hold the vehicle at speeds over 30 mph (48 km/h) for more than 10 seconds. Slow down and stop the wheels.
5. Check the OBD STATUS in DTCs MENU for a pass/fail test of code P0717.
Did the result indicate a fail?
YES - Go to step 6.
NO - Intermittent failure, the system is OK at this time. If the tester indicates NOT COMPLETE, return to step 4 and recheck.
6. Turn the ignition switch OFF.
7. Jump the SCS line with the HDS.
8. Disconnect PCM connector A (73P) and input shaft (mainshaft) speed sensor connector.





9. Check for continuity between PCM connector terminals A39 and body ground, between A40 and body ground, and between A73 and body ground.
Is there continuity ?
YES - Go to step 10.
NO - Repair open in the wires between PCM connector terminals A39, A40, A73, and ground (G101, G102), or repair poor ground (G101, G102), then go to step 30.
10. Connect PCM connector A (73P).
11. Turn the ignition switch ON (II).





12. 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 16.
NO - Go to step 13.
13. Turn the ignition switch OFF.
14. Disconnect PCM connector A (73P).





15. Check for continuity between PCM connector terminal A27 and input shaft (mainshaft) speed sensor connector terminal No. 1.
Is there continuity ?
YES - Check for loose or poor connections at PCM connector terminal A27. If the connection is OK, update the PCM if it does not have the latest software, or substitute a known-good PCM, then recheck. If the symptom/indication goes away with a known-good PCM, replace the original PCM.
NO - Repair open in the wire between PCM connector terminal A27 and the input shaft (mainshaft) speed sensor, then go to step 30.
16. Turn the ignition switch OFF.
17. Disconnect PCM connector A (73P).





18. Check for continuity between input shaft (mainshaft) speed sensor connector terminal No. 2 and body ground.
Is there continuity ?
YES - Repair short to ground in the wire between PCM connector terminal A48 and input shaft (mainshaft) speed sensor connector, then go to step 30.
NO - Go to step 19





19. Check for continuity between PCM connector terminal A28 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 the input shaft (mainshaft) speed sensor connector and PCM connector terminal A28, then go to step 30.
20. Connect PCM connector A (73P).
21. Turn the ignition switch ON (II).





22. Measure the voltage between the No. 2 and No. 3 terminals of the input shaft (mainshaft) speed sensor connector.
Is there about 5 V?
YES - Go to step 26.
NO - Go to step 23.
23. Turn the ignition switch OFF.
24. Disconnect PCM connector A (73P).





25. Check for continuity between PCM connector terminal A48 and input shaft (mainshaft) speed sensor connector terminal No.2.
Is there continuity ?
YES - Update the PCM if it does not have the latest software, or substitute a known-good PCM, then recheck. If the symptom/indication goes away with a known-good PCM, replace the original PCM.
NO - Repair open in the wire between PCM connector terminal A48 and the input shaft (mainshaft), then go to step 30.
26. Connect the input shaft (mainshaft) speed sensor connector.
27. Clear the DTC with the HDS.
28. Start the engine, drive the vehicle in the D5 position, and hold the vehicle at speeds over 30 mph (48 km/h) for more then 10 seconds.
29. Check the OBD STATUS in DTCs MENU for a pass/fail test of code P0717.
Did the result indicate a fail?
YES - Replace the input shaft (mainshaft) speed sensor, then go to step 30.
NO - Update the PCM if it does not have the latest software, or substitute a known-good PCM, then recheck. If the symptom/indication goes away with a known-good PCM, replace the original PCM.
30. Clear the DTC with the HDS.
31. Test-drive the vehicle for several minutes under the same conditions as those indicated by the freeze data.
32. Check the OBD STATUS in DTCs MENU for a pass/fail test of code P0717.
Did the result indicate a pass?
YES - The problem has been corrected.
NO - Return to step 1 and recheck.