P0971
DTC P0971: Short in A/T Clutch Pressure Control Solenoid Valve CNOTE:
^ 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. Check that DTC P0971 recurs.
Is DTC P0971 indicated?
YES - Go to step 6.
NO - Go to step 3.
3. Choose Clutch Pressure Control Solenoid Control in Miscellaneous Test Menu, and test the A/T clutch pressure control solenoid valve C with the HDS.
Is the system normal?
YES - Go to step 4.
NO - Go to step 6.
4. Drive with the A/T clutch pressure control solenoid valve C at 0.2 A in Clutch Pressure Control Solenoid Control menu.
5. Monitor the OBD status for P0971 in the DTCs/Freeze Data in A/T Mode Menu for a pass/fail.
Does the result indicate FAILED?
YES - Go to step 6.
NO - Intermittent failure, the system is OK at this time. Check for poor connections or loose terminals at the A/T clutch pressure control solenoid valve C and the PCM. If the tester indicates NOT COMPLETED, return to step 3 and recheck.
6. Turn the ignition switch OFF.
7. Disconnect the A/T clutch pressure control solenoid valve C connector.
8. Measure the A/T clutch pressure control solenoid valve C resistance at the solenoid connector.
Is there 3 - 10 ohms?
YES - Go to step 9.
NO - Replace the A/T clutch pressure control solenoid valve C, then go to step 10.
9. Check for continuity between A/T clutch pressure control solenoid valve B connector terminal No. 2 and body ground.
Is there continuity?
YES - 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 - Repair an open in the wire between the A/T clutch pressure control solenoid valve B and ground (G101, G102), or repair a poor ground (G101, G102), then go to step 10.
10. Clear the DTC with the HDS.
11. Test-drive the vehicle for several minutes in the D position through all five gears.
12. Monitor the OBD status for P0971 in the DTCs/Freeze Data in A/T Mode Menu for a pass/fail.
Does the result indicate PASSED?
YES - Troubleshooting is complete.
NO - Return to step 6 and recheck.