Automatic Transmission
DTC P0980: Open in Shift Solenoid Valve C CircuitNOTE:
^ Before you troubleshoot, record all freeze data and any on-board snapshot, 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. Clear the DTC with the HDS.
2. Start the engine in P, and wait for at least 1 second.
3. Test-drive the vehicle in 1st gear in D for at least 1 second.
4. Check that DTC P0980 recurs.
Is DTC P0980 indicated?
YES - Go to step 9.
NO - Go to step 5.
5. Select SHIFT SOLENOID C in 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 9.
6. Start the engine in P, and wait for at least 1 second.
7. Test-drive the vehicle in 1st gear in D for at least 1 second.
8. Monitor the OBD STATUS for P0980 in the DTCs MENU with the HDS.
Does the screen indicate PASSED?
YES - Intermittent failure, the system is OK at this time. Check for poor connections or loose terminals at shift solenoid valve C, the shift solenoid harness connector and the PCM.
NO - If the screen indicates FAILED, go to step 9. If the screen indicates NOT COMPLETED, return to step 5 and recheck.
9. Turn the ignition switch to LOCK (0).
10. Jump the SCS line with the HDS.
11. Disconnect PCM connectors B (44P) and C (44P).
12. Measure the resistance between PCM connector terminals C18 and C40 or B43.
Is there 12-25 ohms?
YES - Go to step 24.
NO - Go to step 13.
13. Disconnect the shift solenoid harness connector.
14. Check for continuity between PCM connector terminal C18 and shift solenoid harness connector terminal No. 2.
Is there continuity?
YES - Go to step 15.
NO - Repair open in the wire between PCM connector terminal C18 and the shift solenoid harness connector, then go to step 17.
15. Remove the shift solenoid harness.
16. Check for continuity between shift solenoid harness connector terminal No. 2 and the shift solenoid valve C connector terminal.
Is there continuity?
YES - Replace shift solenoid valve C, then go to step 17.
NO - Replace the shift solenoid harness, then go to step 17.
17. Reconnect all connectors.
18. Turn the ignition switch to ON (II).
19. Clear the DTC with the HDS.
20. Start the engine in P, and wait for at least 1 second.
21. Test-drive the vehicle in 1st gear in D for at least 1 second.
22. Check for Temporary DTCs or DTCs with the HDS.
Is DTC P0980 indicated?
YES - Check for poor connections or loose terminals at shift solenoid valve C, the shift solenoid harness, and the PCM, then go to step 1.
NO - If Temporary DTC or DTC P0980 is not indicated, or if any other Temporary DTCs are indicated, go to step 23.
23. Monitor the OBD STATUS for P0980 in the DTCs MENU with the HDS.
Does the screen indicate PASSED?
YES - Troubleshooting is complete. If any other Temporary DTC or DTCs were indicated on step 22, go to the indicated DTCs troubleshooting.
NO - If the screen indicates FAILED, check for poor connections or loose terminals at shift solenoid valve C, the shift solenoid harness, and the PCM, then go to step 1. If the screen indicates NOT COMPLETED, go to step 20.
24. Update the PCM if it does not have the latest software, or substitute a known-good PCM.
25. Start the engine in P, and wait for at least 1 second.
26. Test-drive the vehicle in 1st gear in D for at least 1 second.
27. Check for Temporary DTCs or DTCs with the HDS.
Is DTC P0980 indicated?
YES - Check for poor connections or loose terminals at shift solenoid valve C, the shift solenoid harness, and the PCM. If the PCM was updated, substitute a known-good PCM, then go to step 25. If the PCM was substituted, go to step 1.
NO - If Temporary DTC or DTC P0980 is not indicated, or if any other Temporary DTCs or DTCs are indicated, go to step 28.
28. Monitor the OBD STATUS for P0980 in the DTCs MENU with the HDS.
Does the screen indicate PASSED?
YES - If the PCM was updated, troubleshooting is complete. If the PCM was substitute, replace the original PCM. If any other Temporary DTCs or DTCs were indicated on step 27, go to the indicated DTCs troubleshooting.
NO - If the screen indicates FAILED, check for poor connections or loose terminals at shift solenoid valve C, the shift solenoid harness, and the PCM. If the PCM was updated, substitute a known-good PCM, then go to step 25. If the PCM was substituted, go to step 1. If the screen indicates NOT COMPLETED, go to step 25.