DTC Troubleshooting

DTC Troubleshooting: U0114

DTC U0114:

F-CAN A Malfunction (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 the troubleshooting for DTC U0029 U0029.�

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 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 Symptom Troubleshooting.�

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 PCM connector A (49P).

10. Check for continuity between 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 an open in the wire between the PCM(A48) and the SH-AWD control unit, then go to step 12.

11. Check for continuity between 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 SH-AWD Control Unit Update, or substitute a known-good SH-AWD control unit Service and Repair, then go to step 12 and recheck. If DTC U0114 is not indicated after substitution, replace the original SH-AWD control unit Service and Repair, then go to step 12.

NO -

Repair an 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 PCM with the HDS.

15. Do the PCM idle learn procedure 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 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.�