DTC U0100-87: Lost Communication with ECM/PCM "A" Missing Message [11/2016 - ]: Procedure

1. Connect the Techstream to the DLC3.
2. Turn the ignition switch to ON.
3. Turn the Techstream on.
4. Enter the following menus: Powertrain / Transmission / Trouble Codes.

   Powertrain > Transmission > Trouble Codes 

5. Read the DTCs using the Techstream.

   Result

   Result	Proceed to
   Only DTC U010087 is output	A
   DTC U010087 and other DTCs are output	B

Result:  2

B 

GO TO DTC CHART. Refer to  DIAGNOSTIC TROUBLE CODE CHART [11/2016 - 10/2017]  Refer to  DIAGNOSTIC TROUBLE CODE CHART [10/2017 - ] 

Result:  1

A 

See step  2

1. Replace the ECM.

   Refer to COMPONENTS [11/2016 - ]

   Result

   Proceed to
   NEXT

Result:  1

NEXT 

PERFORM REGISTRATION. Refer to  REGISTRATION [11/2016 - ]