U0114

DTC Troubleshooting: U0114, U0114

DTC U0114:

F-CAN Malfunction (ECM/PCM-SH-AWD Control Unit)

NOTE: Before you troubleshoot, record all freeze data and any on-board snapshot, and review the general troubleshooting information Initial Inspection and Diagnostic Overview.

1. Turn the ignition switch to ON (II), or press the engine start/stop button to select the ON mode.

2. Check for Pending or Confirmed DTCs with the HDS.

Are DTC U0029 and U0114 indicated at the same time?

YES -

Go to troubleshooting for DTC U0029 ECM/PCM.

NO -

Go to step 3.

3. Clear the DTC with the HDS.

4. Check for Pending or Confirmed DTCs with the HDS.

Is DTC U0114 indicated?

YES -

Go to step 5.

NO -

Intermittent failure, the system is OK at this time. Check for poor connections or loose terminals at the SH-AWD control unit and the ECM/PCM.

5. Check for communication to the SH-AWD system with the HDS.

Does the HDS communicate with the SH-AWD control unit?

YES -

Go to step 6.

NO -

Go to the symptom troubleshooting for the SH-AWD indicator does not go off, and no DTCs are stored .

6. Turn the ignition switch to LOCK (0), or press the engine start/stop button to select the OFF mode.

7. Jump the SCS line with the HDS.

8. Disconnect SH-AWD control unit connector A (20P).

9. Disconnect ECM/PCM connector A (49P).

10. Check for continuity between ECM/PCM connector terminals A48 and SH-AWD control unit connector A (20P) terminal No.10.





Is there continuity?

YES -

Go to step 11.

NO -

Repair open in the wire between the ECM/PCM(A48) and the SH-AWD control unit, then go to step 12.

11. Check for continuity between ECM/PCM connector terminal A49 and SH-AWD control unit connector A (20P) terminal No. 20.





Is there continuity?

YES -

Update the SH-AWD control unit if it does not have the latest software , or substitute a known-good SH-AWD control unit , then go to step 12 and recheck. If DTC U0114 is not indicated after substitution, replace the original SH-AWD control unit , then go to step 12.

NO -

Repair open in the wire between the PCM(A49) and the SH-AWD control unit, then go to step 12.

12. Reconnect all connectors.

13. Turn the ignition switch to ON (II), or press the engine start/stop button to select the ON mode.

14. Reset the ECM/PCM with the HDS.

15. Do the ECM/PCM idle learn procedure .

16. Check for Pending or Confirmed DTCs with the HDS.

Is DTC U0114 indicated?

YES -

Check for poor connections or loose terminals at the SH-AWD control unit and the ECM/PCM, then go to step 1.

NO -

Troubleshooting is complete. If any other Pending or Confirmed DTCs are indicated, go to the indicated DTC's troubleshooting.