WIPER AND WASHER SYSTEM, Diagnostic DTC:B1374

DTC Code DTC Name
B1374 ECU Malfunction (Sub Motor)

DESCRIPTION

This DTC is stored when the No. 2 windshield wiper motor assembly detects an internal malfunction.

DTC No. Detection Item DTC Detection Condition Trouble Area Memory DTC Output from
B1374 ECU Malfunction (Sub Motor)

    DTC Detection Condition:

  • Power switch on (IG) (IG+ voltage 9.5 V or higher)


    Malfunction Status:

  • Microcomputer malfunction

  • Temperature detection circuit malfunction

  • Angle detection circuit malfunction

  • Wiper motor activation circuit malfunction

  • Current detection circuit malfunction


    Malfunction Duration:

  • Malfunction determined if the status continues for 10 seconds or more

 No. 2 windshield wiper motor assembly ○ Windshield wiper motor assembly

PROCEDURE


  1. CHECK FOR DTC


    1. Clear the DTCs.

      Click here


      Body Electrical > Wiper > Clear DTCs

    2. Turn the power switch on (IG) and wait for at least 10 seconds.

    3. Check for DTCs.

      Click here


      Body Electrical > Wiper > Trouble Codes
      OK
      DTC B1374 is not output
      Result
      Proceed to
      OK
      NG

    OK

    USE SIMULATION METHOD TO CHECK Click here

    NG

    REPLACE NO. 2 WINDSHIELD WIPER MOTOR ASSEMBLY Click here