Without Continuously Variable Transmission

DTC P0717: Problem in Input Shaft (Mainshaft) Speed Sensor Circuit (No Signal Input)
2004-2005 Model

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. Check the input shaft (mainshaft) and output shaft (countershaft) speed sensor installation.
Are the input shaft (mainshaft) and output shaft (countershaft) speed sensor installed properly?
YES - Go to step 2.
NO - Reinstall and recheck.
2. Disconnect input shaft (mainshaft) speed sensor connector (2P).





3. Measure input shaft (mainshaft) speed sensor resistance at the sensor connector.
Is there 400 - 600 Ohms?
YES - Go to step 4.
NO - Replace the input shaft (mainshaft) speed sensor.
4. Disconnect PCM connector C (22P).





5. Check for continuity between PCM connector terminal C7 and body ground.
Is there continuity?
YES - Repair short to ground in the wire between PCM connector terminal C7 and the input shaft (mainshaft) speed sensor.
NO - Go to step 6.
6. Connect input shaft (mainshaft) speed sensor connector (2P).





7. Measure the resistance between PCM connector terminals C7 and C21.
Is there 400 - 600 Ohms?
YES - Check for loose terminal fit, and repair if necessary. 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 - Go to step 8.
8. Disconnect input shaft (mainshaft) speed sensor connector (2P).





9. Check for continuity between PCM connector terminal C7 and input shaft (mainshaft) speed sensor connector terminal No. 2.
Is there continuity?
YES - Go to step 10.
NO - Repair open in the wire between PCM connector terminal C7 and the input shaft (mainshaft) speed sensor.





10. Check for continuity between PCM connector terminal C21 and input shaft (mainshaft) speed sensor connector terminal No. 1.
Is there continuity?
YES - Check for loose terminal fit, and repair if necessary. 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 C21 and the input shaft (mainshaft) speed sensor.