Except FFV Model
DTC Troubleshooting: P0976 (8-3)
DTC P0976:
Shift Solenoid Valve B (Short)
NOTE:
- Before you troubleshoot, record all freeze data and any on-board snapshot with the HDS, and review the General Troubleshooting Information How To Troubleshoot The A/T System.
- 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).
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 P0976 indicated?
YES -
Go to step 8.
NO -
Go to step 5.
5. Select Shift Solenoid Valve B in the Miscellaneous Test Menu, and the test shift solenoid valve B 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 P0976 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 intermittent short to body ground in the wire between shift solenoid valve B and the PCM. If the HDS indicates NOT COMPLETED, go to step 5.
8. Turn the ignition switch to LOCK (0).
9. Jump the SCS line with the HDS.
10. Disconnect PCM connector C (49P).
11. Measure the resistance between PCM connector terminal C28 and body ground.
Is there less than 12 Ohms?
YES -
Go to step 12.
NO -
Go to step 15.
12. Disconnect the shift solenoid wire harness connector.
13. Check for continuity between PCM connector terminal C28 and body ground.
Is there continuity?
YES -
Repair a short to body ground in the wire between PCM connector terminal C28 and the shift solenoid wire harness connector, then go to step 20.
NO -
Go to step 14.
14. Inspect shift solenoid valve B and shift solenoid wire harness Shift Solenoid Valve Test, Replacement, And Shift Solenoid Wire Harness Replacement.
Is shift solenoid valve B and shift solenoid wire harness OK?
YES -
Go to step 15.
NO -
Replace shift solenoid valve B or the shift solenoid wire harness Shift Solenoid Valve Test, Replacement, And Shift Solenoid Wire Harness Replacement, and reconnect all connectors, then go to step 20.
15. Reconnect all connectors.
16. Update the PCM if it does not have the latest software PCM Update, or substitute a known-good PCM.
17. Start the engine in P, wait for at least 1 second, then test-drive the vehicle in D. Drive the vehicle in 3rd or 4th gear for at least 1 second. Slow down, and stop the wheels.
18. Check for Pending or Confirmed DTCs with the HDS.
Is DTC P0976 indicated?
YES -
If the PCM was updated, substitute a known-good PCM, then recheck. If the PCM was substituted, go to step 1.
NO -
Go to step 19.
19. Monitor the OBD STATUS for P0976 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 PCM Replacement (Except FFV Model). If any other Pending or Confirmed DTCs were indicated in step 18, go to the indicated DTC's troubleshooting.
NO -
If the HDS indicates FAILED, check for intermittent short to body ground in the wire between shift solenoid valve B and the PCM. If the PCM was updated, substitute a known-good PCM, then recheck. If the PCM was substituted, go to step 1. If the HDS indicates NOT COMPLETED, go to step 17.
20. Reconnect all connectors.
21. Turn the ignition switch to ON (II).
22. Clear the DTC with the HDS.
23. Start the engine in P, wait for at least 1 second, then test-drive the vehicle in D. Drive the vehicle in 3rd or 4th gear for at least 1 second. Slow down, and stop the wheels.
24. Check for Pending or Confirmed DTCs with the HDS.
Is DTC P0976 indicated?
YES -
Check for intermittent short to body ground in the wire between shift solenoid valve B and the PCM, then go to step 1.
NO -
Go to step 25.
25. Monitor the OBD STATUS for P0976 in the DTCs MENU with the HDS.
Does the HDS indicate PASSED?
YES -
Troubleshooting is complete. If any other Pending or Confirmed DTCs were indicated in step 24, go to the indicated DTC's troubleshooting.
NO -
If the HDS indicates FAILED, check for intermittent short to body ground in the wire between shift solenoid valve B and the PCM, then go to step 1. If the HDS indicates NOT COMPLETED, go to step 23.