LIN COMMUNICATION SYSTEM, Diagnostic DTC:U0242

DTC Code DTC Name
U0242 Lost Communication With Headlamp Control Module "B"

DESCRIPTION

This DTC is output when communication between the headlight light control ECU sub-assembly LH and headlight light control ECU sub-assembly RH is lost.

DTC No. Detection Item DTC Detection Condition Trouble Area
U0242 Lost Communication With Headlamp Control Module "B" Communication malfunction between headlight light control ECU sub-assembly LH and headlight light control ECU sub-assembly RH

  • Headlight light control ECU sub assembly LH

  • Headlight light control ECU sub assembly RH

  • Harness or connector

WIRING DIAGRAM

B002DSUE03
*1 LINL
*2 Headlight Light Control ECU Sub-assembly LH
*3 Headlight Light Control ECU Sub-assembly RH
*4 LIN Communication Line

CAUTION / NOTICE / HINT

Note

After the headlight light control ECU sub-assembly LH is replaced, vehicle information registration and initialization are necessary.

Click here

PROCEDURE


  1. CLEAR DTC


    1. Clear the DTCs.

      Click here


      Body Electrical > AFS > Clear DTCs
      Result
      Proceed to
      NEXT

    NEXT

  2. CHECK FOR DTC


    1. Turn the engine switch on (IG).

    2. Inspect the light using the dimmer switch.

    3. Check for DTCs.

      Click here


      Body Electrical > AFS > Trouble Codes
      Result
      Result Proceed to
      DTC U0242 is not output A
      DTC U0242 is output B

    A

    USE SIMULATION METHOD TO CHECK Click here

    B

    GO TO LIGHTING SYSTEM Click here