DTC Troubleshooting: P0970 (29)
DTC Troubleshooting: P0970 (29)
DTC P0970:
A/T Clutch Pressure Control Solenoid Valve C (Open or Short)
NOTE:
- Before you troubleshoot, record all freeze data and any on-board snapshot with the HDS, and review General Troubleshooting Information Reading and Clearing Diagnostic Trouble Codes.
- This code is caused by an electrical circuit problem and cannot be caused by a mechanical problem in the transmission.
- Some wire colors vary according to the model year, and are indicated with an asterisk as follows:
- *(1): '09 - 10 models
- *(2): '11 model
1. Clear the DTC with the HDS.
2. Check that DTC P0970 recurs.
Is DTC P0970 indicated?
YES -
Go to step 6.
NO -
Go to step 3.
3. Select Clutch Pressure Control (Linear) Solenoid Valve C in the Miscellaneous Test Menu, and test A/T clutch pressure control solenoid valve C with the HDS.
Does the HDS indicate NORMAL?
YES -
Go to step 4.
NO -
Go to step 6.
4. In the Clutch Pressure Control Solenoid Control menu, select Clutch Pressure Control Solenoid Valve C at 1.0 A.
5. Monitor the OBD status for P0970 in the DTCs/Freeze Data in A/T Mode Menu for a pass/fail.
Does the HDS indicate FAILED?
YES -
Go to step 6.
NO -
Intermittent failure, the system is OK at this time. Check for poor connections and loose terminals at A/T clutch pressure control solenoid valve C and the PCM. If the HDS indicates NOT COMPLETED, return to step 3 and recheck.
6. Turn the ignition switch to LOCK (0).
7. Disconnect the A/T clutch pressure control solenoid valve C connector.
8. Measure the resistance between A/T clutch pressure control solenoid valve C connector terminals No. 1 and No. 2.
Is there 3-10 Ohms?
YES -
Go to step 9.
NO -
Replace A/T clutch pressure control solenoid valve C A/T Clutch Pressure Control Solenoid Valve B And C Replacement, then go to step 19.
9. Check for continuity between A/T clutch pressure control solenoid valve C connector terminal No. 2 and body ground.
Is there continuity?
YES -
Go to step 10.
NO -
Repair an open in the wire between A/T clutch pressure control solenoid valve C and ground (G101), or repair poor ground (G101), then go to step 19.
10. Jump the SCS line with the HDS.
11. Disconnect PCM connector B (49P).
12. Check for continuity between PCM connector terminal B26 and A/T clutch pressure control solenoid valve C connector terminal No. 1.
Is there continuity?
YES -
Go to step 13.
NO -
Repair an open in the wire between PCM connector terminal B26 and A/T clutch pressure control solenoid valve C, then go to step 19.
13. Check for continuity between A/T clutch pressure control solenoid valve C connector terminal No. 1 and body ground.
Is there continuity?
YES -
Repair a short in the wire between PCM connector terminal B26 and A/T clutch pressure control solenoid valve C, then go to step 19.
NO -
Go to step 14.
14. Reconnect all connectors.
15. Update the A/T software in the PCM if it does not have the latest software ECM/PCM Update (A/T), or substitute a known-good PCM.
16. Start the engine, and wait for at least 1 second.
17. Check for Pending or Confirmed DTCs with the HDS.
Is DTC P0970 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 18.
18. Monitor the OBD status for P0970 in the DTCs/Freeze Data in A/T Mode Menu for a pass/fail.
Does the HDS indicate PASSED?
YES -
If the PCM was updated, troubleshooting is complete. If the PCM was substituted, replace the original PCM Service and Repair. If any other DTCs were indicated on step 17, go to the indicated DTC's troubleshooting.�
NO -
Check for poor connections and loose terminals at A/T clutch pressure control solenoid valve C 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 16 and recheck.
19. Reconnect all connectors.
20. Clear the DTC with the HDS.
21. Start the engine, and wait for at least 1 second.
22. Check for Pending or Confirmed DTCs with the HDS.
Is DTC P0970 indicated?
YES -
Check for poor connections and loose terminals at A/T clutch pressure control solenoid valve C and the PCM, then go to step 1.
NO -
Go to step 23.
23. Monitor the OBD status for P0970 in the DTCs/Freeze Data in A/T Mode Menu for a pass/fail.
Does the HDS indicate PASSED?
YES -
Troubleshooting is complete. If any other DTCs were indicated on step 22, go to the indicated DTC's troubleshooting.�
NO -
Check for poor connections and loose terminals at A/T clutch pressure control solenoid valve C and the PCM, then go to step 1. If the HDS indicates NOT COMPLETED, return to step 21 and recheck.