DTC Troubleshooting
DTC P0716: Problem in Input Shaft (Mainshaft) Speed Sensor CircuitDTC 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.
^ 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.
2. Turn the ignition switch to ON (II).
3. Clear the DTC with the HDS.
4. 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, run the vehicle with the shift lever in D, and hold 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 (49P).
10. 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 11.
NO - Repair open in the wires between PCM connector terminals C44, C48, and ground (G101), or repair poor ground (G101), then go to step 32.
11. Connect PCM connector C (49P).
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 18.
NO - Go to step 15.
15. Turn the ignition switch to LOCK (0).
16. Disconnect PCM connector B (49P).
17. 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 18.
NO - Repair open in the Wire between PCM connector terminal B19 and the input shaft (mainshaft) speed sensor, then go to step 32.
18. Turn the ignition switch to LOCK (0).
19. Disconnect PCM connector B (49P),
20. 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 B18 and the input shaft (mainshaft) speed sensor, then go to step 32.
NO - Go to step 21.
21. 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 22.
NO - Repair open in the wire between PCM connector terminal B34 and the input shaft (mainshaft) speed sensor, then go to step 32.
22. Connect PCM connector B (49P).
23. Turn the ignition switch to ON (II).
24. Measure the voltage between input shaft (mainshaft) speed sensor connector terminals No. 2 and No. 3.
Is there about 5 V?
YES - Go to step 28.
NO - Go to step 25.
25. Turn the ignition switch to LOCK (0).
26. Disconnect PCM connector B (49P).
27. 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 38.
NO - Repair open in the wire between PCM connector terminal B18 and the input shaft (mainshaft) speed sensor, then go to step 32.
28. Connect the input shaft (mainshaft) speed sensor connector.
29. Clear the DTC with the HDS.
36. Start the engine, disable the VSA by pressing the VSA OFF switch, run the vehicle with the shift lever in D, and hold the vehicle at speeds over 12 mph (20 km/h) for at least 10 seconds. Slow down and stop the wheels.
31. Monitor the OBD STATUS for P0716 or P0717 in the DTCs MENU with the HDS.
Does the HDS indicate FAILED?
YES - Replace the input shaft (mainshaft) speed sensor, then go to step 32.
NO - Go to step 38.
32. Reconnect all connectors.
33. Turn the ignition switch to ON (II).
34. Clear the DTC with the HDS.
35. Start the engine, disable the VSA by pressing the VSA OFF switch, run the vehicle with the shift lever in D, and hold the vehicle at speeds over 12 mph (20 km/h) for at least 10 seconds. Slow down and stop the wheels.
36. 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 37.
37. 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 36, 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 35.
38. Reconnect all connectors.
39. Update the PCM if it does not have the latest software, or substitute a known-good PCM.
40. Start the engine, disable the VSA by pressing the VSA OFF switch, run the vehicle with the shift lever in D, and hold the vehicle at speeds over 12 mph (20 km/h) for at least 10 seconds. Slow down and stop the wheels.
41. 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, then go to step 40. If the PCM was substituted, go to step 1.
NO - Go to step 42.
42. 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. If any other Temporary DTCs or DTCs were indicated in step 41, 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, then go to step 40. If the PCM was substituted, go to step 1. If the HDS indicates NOT COMPLETED, go to step 40.