Manufacturer Code Charts: 110

Adaptive Cruise Control (ACC) DTC Troubleshooting: 110

DTC 110:

Lost Communication with the PCM (PGM-FI System)

1. Check the MIL on the gauge control module Initial Inspection and Diagnostic Overview.

Does the MIL stay on?

YES -

Go to the PGM-FI system's general troubleshooting information Initial Inspection and Diagnostic Overview.

NO -

Go to step 2.

2. Clear the DTCs with the HDS.

3. Turn the ignition switch to ON (II), then wait for 10 seconds.

4. Press the ACC switch ON.

5. Check for DTCs with the HDS.

Is DTC 110 indicated?

YES -

Go to step 6.

NO -

Intermittent failure, the system is OK at this time. Check for loose or poor connections.

6. Turn the ignition switch to LOCK (0).

7. Disconnect the ACC unit 20P connector.

8. Jump the SCS line with the HDS, then disconnect PCM connector A (49P).

9. Check for continuity between ACC unit 20P connector terminal No. 10 and PCM connector A (49P) terminal No. 48.





Is there continuity?

YES -

Go to step 10.

NO -

Repair an open in the wire between the ACC unit and the branch of the F-CAN line (F-CAN H).

10. Check for continuity between ACC unit 20P connector terminal No. 20 and PCM connector A (49P) terminal No. 49.





Is there continuity?

YES -

Replace the PCM Service and Repair.

NO -

Repair an open in the wire between the ACC unit and the branch of the F-CAN line (F-CAN L).