DTC Troubleshooting: P0980 (22-4)
| DTC P0980: | Open in Shift Solenoid Valve C Circuit |
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. | Clear the DTC with the HDS. |
| 2. | Start the engine in the P position. |
| 3. | Check that DTC P0980 recurs. Is DTC P0980 indicated? YES - Go to 7. NO - Go to 4. |
| 4. | Choose Shift Solenoid C in Miscellaneous Test Menu, and test the shift solenoid valve C with the HDS. |
| 5. | Start the engine in the P position. |
| 6. | Check the OBD status in DTC Monitor Tool from DTCs/Freeze Data in A/T Mode Menu for a pass/fail test of code P0980. Did the result indicate a fail? YES - Go to 7. NO - Intermittent failure, the system is OK at this time. Check for poor connections or loose terminals at the shift solenoid valve C and PCM. If the tester indicates NOT COMPLETE, return to 4 and recheck.n |
| 7. | Turn the ignition switch OFF. |
| 8. | Jump the SCS line with the HDS. |
| 9. | Disconnect PCM connectors A (31P) and C (22P). |
| 10. | Measure the resistance between PCM connector terminals C2 and A8 or A9.
Is there 12-25 W? YES - Check for loose or poor connections at PCM connector terminal C2. 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.n NO - Go to 11. |
| 11. | Disconnect the shift solenoid harness connector at the transmission housing. |
| 12. | Measure the resistance between shift solenoid harness connector terminal No. 1 and body ground.
Is there 12-25 W? YES - Repair open in the wire between PCM connector terminal C2 and the shift solenoid harness connector, then go to 13. NO - Check shift solenoid valve C, and check for an open in the shift solenoid harness in the transmission. Replace shift solenoid valve C and/or shift solenoid harness, then go to 13. |
| 13. | Clear the DTC with the HDS. |
| 14. | Start the engine in the P position. |
| 15. | Check the OBD status in DTC Monitor Tool from DTCs/Freeze Data in A/T Mode Menu for a pass/fail test of code P0980. Did the result indicate a pass? YES - The problem has been corrected.n NO - Return to 1 and recheck.n |