Dtc U0101 Lost Communication With Tcm

Engine Hybrid System. Land Cruiser. Urj200, 202 Grj200 Vdj200
1Vd-Ftv Engine Control. Land Cruiser. Urj200, 202 Grj200 Vdj200

DESCRIPTION

INSPECTION PROCEDURE

CHECK DTC OUTPUT (IN ADDITION TO DTC P0101)

REPLACE ECM

CHECK IF DTC RECURS

DTC U0101 Lost Communication with TCM


DESCRIPTION

The engine control unit and the transmission control unit are located inside the ECM. The engine control unit intercommunicates with the transmission control unit with the Controller Area Network (CAN). If there is a problem in this intercommunication, the ECM stores a DTC.

DTC Code
DTC Detection Condition
Trouble Area
U0101
No communication with the ECM continues.
ECM

INSPECTION PROCEDURE

1.CHECK DTC OUTPUT (IN ADDITION TO DTC P0101)

  1. Connect the intelligent tester to the DLC3.

  1. Turn the engine switch on (IG).

  1. Turn the intelligent tester on.

  1. Enter the following menus: Powertrain / ECT / Trouble Codes.

  1. Read the DTCs using the tester.

    Result
    Result
    		Proceed to
    Only U0101 is output
    		A
    U0101 and other DTCs are output
    		B

    HINT:
    If any other codes besides U0101 are output, perform troubleshooting for those DTCs first.


B
GO TO DTC CHART (Click here)
A


2.REPLACE ECM

  1. Replace the ECM (Click here).


NEXT


3.CHECK IF DTC RECURS

  1. Clear the DTC (Click here).

  1. Start the engine.

  1. Read the DTCs using the tester.

    Result
    Result
    		Proceed to
    No DTC output
    		A
    Other DTCs output
    		B



B
GO TO DTC CHART (Click here)
A

END