ECD SYSTEM (w/o DPF), Diagnostic DTC:U0101

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.

INSPECTION PROCEDURE

PROCEDURE

1. Click here

   CHECK DTC OUTPUT (IN ADDITION TO DTC P0101)

   
   

   1. Connect the intelligent tester to the DLC3.

   2. Turn the engine switch on (IG).

   3. Turn the intelligent tester on.

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

   5. Read the DTCs using the tester.

      Table 1. Result

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

      Tip:

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

   
   
   • AClick here
   • BClick here
2. Click here

   REPLACE ECM

   
   

   1. Replace the ECM (Click here).

   
   
   • NEXTClick here
3. Click here

   CHECK IF DTC RECURS

   
   

   1. Clear the DTC (Click here).

   2. Start the engine.

   3. Read the DTCs using the tester.

      Table 2. Result

      Result	Proceed to
      No DTC output	A
      Other DTCs output	B

   
   
   • AClick here
   • BClick here
4. Click here

   END

5. Click here

   GO TO DTC CHARTClick here

6. Click here

   GO TO DTC CHARTClick here