NIGHT VIEW SYSTEM, Diagnostic DTC:B281B

DTC Code DTC Name
B281B Near Infrared Camera Power Supply Malfunction

DESCRIPTION

The No. 1 night view ECU monitors the power supplied to the night view camera. This DTC is stored if a power supply malfunction is detected.

Tech Tips

While DTCs are stored, the night view system does not operate and a warning message is displayed on the accessory meter assembly.

DTC Code DTC Detection Condition Trouble Area
B281B When the night view system is operating, the voltage at the CCD+ terminal of the No. 1 night view ECU is not between 5.7 and 6.5 V for 1 second or more.

  • Harness or connector

  • Night view camera assembly

  • No. 1 night view ECU

WIRING DIAGRAM

A01FS92E04

INSPECTION PROCEDURE

Note

When the No. 1 night view ECU or night view camera is replaced, perform night view camera adjustment Click here.

PROCEDURE


  1. CHECK HARNESS AND CONNECTOR (NO. 1 NIGHT VIEW ECU - NIGHT VIEW CAMERA ASSEMBLY)


    1. Disconnect the T34 No. 1 night view ECU connector.

    2. Disconnect the Y10 night view camera assembly connector.

    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Condition Specified Condition
      T34-17 (CCD+) - Y10-1 (CB+) Always Below 1 Ω
      T34-17 (CCD+) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  2. CHECK NO. 1 NIGHT VIEW ECU


    1. A01FRH5E02
      Text in Illustration
      *a

      Component with harness connected

      (No. 1 Night View ECU)

      Using the GTS, follow the instructions to switch to the "Night View" screen and select "Active Test".

    2. Select "Night View System Operation" on the screen and forcibly operate the night view system.

    3. Measure the voltage according to the value(s) in the table below.

      Standard Voltage
      Tester Connection Condition Specified Condition
      T34-17 (CCD+) - T34-20 (CCD-) Night view system operating (forcibly operated using Active Test) 5.7 to 6.5 V

    NG

    REPLACE NO. 1 NIGHT VIEW ECU Click here

    OK

  3. REPLACE NIGHT VIEW CAMERA ASSEMBLY


    1. Temporarily replace the night view camera assembly with a new or normally functioning one Click here.


    NEXT

  4. ADJUST NIGHT VIEW CAMERA ASSEMBLY


    1. Perform night view camera adjustment Click here.


    NEXT

  5. CHECK FOR DTC


    1. Clear the DTCs Click here.

    2. Turn the power switch off.

    3. Wait 6 seconds after turning the power switch off, and then turn the power switch on (IG).

    4. Check for DTCs Click here.

      OK
      DTC B281B is not output.

    NG

    REPLACE NO. 1 NIGHT VIEW ECU Click here

    OK

    END (NIGHT VIEW CAMERA IS DEFECTIVE)