P0974
DTC P0974: Open in Shift Solenoid Valve A CircuitNOTE:
^ Record all freeze data and review the 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. Check that DTC P0974 recurs.
Is DTC P0974 indicated?
YES-Go to step 5.
NO-Go to step 3.
3. Choose Shift Solenoid A in Miscellaneous Test Menu, and test the shift solenoid valve A with the HDS.
4. Start the engine in the P position.
5. Check the OBD status in DTC Monitor Tool from DTCs/Freeze Data in A/T Mode Menu for a pass/fail test of code P0974.
Did the result indicate a fail?
YES-Go to step 6.
NO-intermittent failure, the system is OK at this time. If the tester indicates NOT COMPLETE, return to step 3 and recheck.
6. Turn the ignition switch OFF.
7. Jump the SCS line with the HDS.
8. Disconnect PCM connectors B (44P) and C (44P).
9. Measure the resistance between PCM connector terminals C25 and B43 or C40.
Terminal side of female terminals
Is there 12 - 25 Ohms?
YES-Check for loose or poor connections at PCM connector terminal C25. If the connections are 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.
NO-Go to step 10.
10. Inspect shift solenoid valve A.
Is shift solenoid valve A OK?
YES-Go to step 11.
NO-Replace shift solenoid valve A, then go to step 12.
11. Check for continuity between shift solenoid valve A connector terminal No. 1 and body ground.
Wire side of female terminals
Is there continuity?
YES-Repair open in the wire between PCM connector terminal C25 and shift solenoid valve A, then go to step 13.
NO-Repair open in the wire between shift solenoid valve A and ground (G151), or repair poor ground (G151) then go to step 13.
12. Clear the DTC with the HDS.
13. Start the engine in the P position.
14. Check the OBD status in DTC Monitor Tool from DTCs/Freeze Data in A/T Mode Menu for a pass/fail test of code P0974.
Did the result indicate a pass?
YES-The problem has been corrected.
NO-Return to step 1 and recheck.