DTC Troubleshooting
DTC Troubleshooting: P0980 (22)
DTC P0980:
Open in Shift Solenoid Valve C Circuit
NOTE:
- Before you troubleshoot, record all freeze data and any on-board snapshot with the HDS, and review General Troubleshooting Information Reading and Clearing Diagnostic Trouble Codes.
- This code is caused by an electrical circuit problem and cannot be caused by a mechanical problem in the transmission.
1. Turn the ignition switch to ON (II), or press the engine start/stop button to select the ON mode.
2. Clear the DTC with the HDS.
3. Start the engine in P, and wait for at least 1 second.
4. Check for Pending or Confirmed DTCs with the HDS.
Is DTC P0980 indicated?
YES -
Go to step 8.
NO -
Go to step 5.
5. Select Shift Solenoid Valve C in the Miscellaneous Test Menu, and test shift solenoid valve C with the HDS.
Is a clicking sound heard?
YES -
Go to step 6.
NO -
Go to step 8.
6. Start the engine in P, and wait for at least 1 second.
7. Monitor the OBD status for P0980 in the DTCs MENU with the HDS.
Does the HDS indicate FAILED?
YES -
Go to step 8.
NO -
If the HDS indicates PASSED, intermittent failure, the system is OK at this time. Check for poor connections or loose terminals between shift solenoid valve C and the PCM. If the HDS indicates NOT COMPLETED, go to step 5.
8. Turn the ignition switch to LOCK (0), or press the engine start/stop button to select the OFF mode.
9. Jump the SCS line with the HDS.
10. Disconnect PCM connectors B (49P) and C (49P).
11. Turn the ignition switch to ON (II), or press the engine start/stop button to select the ON mode.
12. Measure the voltage between PCM connector terminal B2 and body ground.
Is there battery voltage?
YES -
Go to step 13.
NO -
Check for a blown No.13 (15 A) fuse in the driver's under-dash fuse/relay box. If the fuse is blown, replace it. If it blows again, repair a short in the No. 13 (15A) fuse circuit. If the fuse OK, repair an open in the wires between PCM connector terminal B2 and the driver's under-dash fuse/relay box, then go to step 19.
13. Turn the ignition switch to LOCK (0), or press the engine start/stop button to select the OFF mode.
14. Measure the resistance between PCM connector terminals C39 and body ground.
Is there 12-25 Ohms?
YES -
Go to step 25.
NO -
Go to step 15.
15. Disconnect the shift solenoid wire harness connector.
16. Check for continuity between PCM connector terminal C39 and shift solenoid wire harness connector terminal No. 2.
Is there continuity?
YES -
Go to step 17.
NO -
Repair an open in the wire between PCM connector terminal C39 and the shift solenoid wire harness connector, then go to step 19.
17. Remove the shift solenoid wire harness Shift Solenoid Valve Test, Replacement, and Shift Solenoid Wire Harness Replacement (A/T).
18. Check for continuity between shift solenoid wire harness connector terminal No. 2 and the shift solenoid valve C connector terminal.
Is there continuity?
YES -
Replace shift solenoid valve C Shift Solenoid Valve Test, Replacement, and Shift Solenoid Wire Harness Replacement (A/T), then go to step 22.
NO -
Replace the shift solenoid wire harness Shift Solenoid Valve Test, Replacement, and Shift Solenoid Wire Harness Replacement (A/T), then go to step 22.
19. Reconnect all connectors.
20. Turn the ignition switch to ON (II), or press the engine start/stop button to select the ON mode.
21. Clear the DTC with the HDS.
22. Start the engine in P, wait for at least 1 second, then test-drive the vehicle in D. Drive the vehicle in 1st gear for at least 1 second. Slow down, and stop the wheels.
23. Check for Pending or Confirmed DTCs with the HDS.
Is DTC P0980 indicated?
YES -
Check for poor connections or loose terminals between shift solenoid valve C and the PCM, then go to step 1.
NO -
Go to step 24.
24. Monitor the OBD status for P0980 in the DTC MENU with the HDS.
Does the HDS indicate PASSED?
YES -
Troubleshooting is complete. If any other Pending or Confirmed DTCs were indicated in step 23, go to the indicated DTC's troubleshooting.�
NO -
If the HDS indicates FAILED, check for poor connections or loose terminals between shift solenoid valve C and the PCM, then go to step 1. If the HDS indicates NOT COMPLETED, go to step 22.
25. Reconnect all connectors.
26. Update the PCM if it does not have the latest software ECM/PCM Update, or substitute a known-good PCM.
27. Start the engine in P, wait for at least 1 second, then test-drive the vehicle in D. Drive the vehicle in 1st gear for at least 1 second. Slow down, and stop the wheels.
28. Check for Pending or Confirmed DTCs with the HDS.
Is DTC P0980 indicated?
YES -
Check for poor connections or loose terminals between shift solenoid valve C and the PCM. If the PCM was updated, substitute a known-good PCM, then go to step 27. If the PCM was substituted, go to step 1.
NO -
Go to step 29.
29. Monitor the OBD status for P0980 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 Pending or Confirmed DTCs were indicated in step 28, go to the indicated DTC's troubleshooting.�
NO -
If the HDS indicates FAILED, check for poor connections or loose terminals between shift solenoid valve C and the PCM. If the PCM was updated, substitute a known-good PCM, then go to step 27. If the PCM was substituted, go to step 1. If the HDS indicates NOT COMPLETED, go to step 27.