P0971
DTC P0971: Problem 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. Select P CTRL SOL CONTROL in MISCELLANEOUS TEST MENU, then select P. CONTROL SOL C in P CTRL SOL CTRL MENU with the HDS.
4. Set the A/T clutch pressure control solenoid valve C to 0.2A in SOL C CONTROL menu.
5. Check the OBD STATUS in DTCs MENU for a pass/fail test of code P0971.
Did the result indicate a fail ?
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 PCM. If the tester indicates NOT COMPLETE, return to step 3 and rechecks
6. Turn the ignition switch OFF.
7. Disconnect the A/T clutch pressure control solenoid valve C connector.
8. Measure 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 A 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 open in the wire between the A/T clutch pressure control solenoid valve C and ground (G151), or repair poor ground (G151), then go to step 10.
10. Clear the DTC with the HDS.
11. Test-drive the vehicle for several minutes in the D position in all five gears.
12. Check the OBD STATUS in DTCs MENU for a pass/fail test of code P0971.
Did the result indicate a pass?
YES-The problem has been corrected..
NO-Return to step 1 and rechecked