DTC Troubleshooting
DTC P0976: Short in Shift Solenoid Valve B 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. Test-drive the vehicle for several minutes in the D position through all five gears.
3. Check that DTC P0976 recurs.
Is DTC P0976 indicated?
YES - Go to step 7.
NO - Go to step 4.
4. Choose SHIFT SOLENOID B in MISCELLANEOUS TEST MENU, and test SHIFT SOLENOID VALVE B with the HDS.
Is the system normal?
YES - Go to step 5.
NO - Go to step 7.
5. Test-drive the vehicle for several minutes in the D position through all five gears.
6. Monitor the OBD STATUS for P0976 in the DTCs MENU with the HDS.
Does the screen indicate FAILED?
YES - Go to step 7.
NO - If the screen indicates PASSED, intermittent failure, the system is OK at this time. Check the SH B (GRN/WHT) wire for an intermittent short to body ground between shift solenoid valve B and the PCM. If the screen indicates NOT COMPLETED, return to step 4 and recheck.
7. Turn the ignition switch OFF.
8. Jump the SCS line with the HDS.
9. Disconnect PCM connectors A (31P), B (24P), and C (22P).
10. Measure resistance between PCM connector terminals C8 and A3 or B15.
Is there less than 12 Ohms?
YES - Go to step 11.
NO - Go to step 22.
11. Disconnect the solenoid harness connector at the transmission housing.
12. Check for continuity between PCM connector terminals C8 and A3 or B15.
Is there continuity?
YES - Repair a short to body ground in the wire between PCM connector terminal C8 and the solenoid harness connector, then go to step 16.
NO - Go to step 13.
13. Inspect shift solenoid valve B. Is shift solenoid valve B OK?
YES - Go to step 14.
NO - Replace shift solenoid valve B, then go to step 16.
14. Turn the ignition switch ON (II).
15. Measure voltage between PCM connector terminals A4 and A3 or B15.
Is there battery voltage?
YES - Go to step 22.
NO - Repair an open in the wire between PCM connector terminal A4 and the under-hood fuse/relay box, then go to step 16.
16. Reconnect all connectors.
17. Turn the ignition switch ON (II).
18. Clear the DTC with the HDS.
19. Test-drive the vehicle for several minutes in the D position through all five gears.
20. Check for Temporary DTCs or DTCs with the HDS.
Is DTC P0976 indicated?
YES - Check for poor connections or loose terminals at shift solenoid valve B and the PCM, then go to step 1.
NO - Go to step 21.
21. Monitor the OBD STATUS for P0976 in the DTCs MENU with the HDS.
Does the screen indicate PASSED?
YES - Troubleshooting is complete.
NO - Return to step 7 and recheck.
22. Update the PCM if it does not have the latest software, or substitute a known-good PCM.
23. Test-drive the vehicle for several minutes in the D position through all five gears.
24. Check for Temporary DTCs or DTCs with the HDS.
Is DTC P0976 indicated?
YES - Check for poor connections or loose terminals at shift solenoid valve B and the PCM. If the PCM was updated, substitute a known-good PCM, then go to step 23. If the PCM was substituted, 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 screen indicate PASSED?
YES - Troubleshooting is complete.
NO - Return to step 7 and recheck.