This code is caused by an electrical circuit problem and cannot be caused by a mechanical problem in the transmission.
DTC Description
Confirmed DTC
Pending DTC
Freeze Frame
U0029 F-CAN Malfunction (F-CAN Bus OFF)
1.
Problem verification:
Problem verification
?1.
Turn the vehicle to the ON mode.
?2.
Clear the DTC with the HDS.
?3.
Turn the vehicle to the OFF (LOCK) mode.
?4.
Turn the vehicle to the ON mode.
?5.
Check for Pending or Confirmed DTCs with the HDS.
DTC Description
Confirmed DTC
Pending DTC
Freeze Frame
U0029 F-CAN Malfunction (F-CAN Bus OFF)
Is DTC U0029 indicated?
YES
The failure is duplicated. Check for any authorized service information related to the DTCs or symptoms you are troubleshooting, or substitute a known-good TCM, then recheck. If this DTC goes away and the TCM was substituted, replace the original TCM.?
NO
Intermittent failure, the system is OK at this time. Check for poor connections and loose terminals at the TCM. If the freeze data/on-board snapshot of this DTC is recorded, try to reproduce the failure under the same conditions with the freeze data/on-board snapshot.?
