NIGHT VIEW SYSTEM, Diagnostic DTC:B2816, B2817

DTC Code DTC Name
B2816 Near Infrared Radiation Floodlight RH
B2817 Near Infrared Radiation Floodlight LH

DESCRIPTION

The No. 1 night view ECU monitors the status of the left and right near-infrared ray emitters. When an operation malfunction signal for a near-infrared ray emitter is detected, a DTC is stored.

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
B2816 The No. 1 night view ECU detects an operation malfunction signal for the near-infrared ray emitter on the right side.

  • Harness or connector

  • Headlight assembly RH*1

  • Headlight unit assembly RH*2

  • Light control ECU (for near-infrared ray emitter)

  • Headlight sub-assembly RH (near-infrared ay emitter)

  • No. 1 night view ECU
B2817 The No. 1 night view ECU detects an operation malfunction signal for the near-infrared ray emitter on the left side.

  • Harness or connector

  • Headlight assembly LH*1

  • Headlight unit assembly LH*2

  • Light control ECU (for near-infrared ray emitter)

  • Headlight sub-assembly LH (near-infrared ay emitter)

  • No. 1 night view ECU

WIRING DIAGRAM

A01FFZUE05

INSPECTION PROCEDURE

Note


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

  • Inspect the fuses for circuits related to this system before performing the following inspection procedure.

PROCEDURE


  1. CHECK HARNESS AND CONNECTOR (HEADLIGHT ASSEMBLY - BATTERY AND BODY GROUND)


    1. A01FHQOE04
      Text in Illustration
      *A for HID Headlight
      *a

      Front view of wire harness connector

      (to Headlight Assembly RH)
      *b

      Front view of wire harness connector

      (to Headlight Assembly LH)

      Disconnect the headlight assembly connector.

    2. Measure the voltage according to the value(s) on the table below.

      Standard Voltage
      RH Side
      Tester Connection Switch Condition Specified Condition
      B2-4 (SOL) - Body ground Ignition switch on (IG) 11 to 14 V
      B2-5 (ILPR) - Body ground*
      LH Side
      Tester Connection Switch Condition Specified Condition
      B5-4 (SOL) - Body ground Ignition switch on (IG) 11 to 14 V
      B5-5 (ILPL) - Body ground*

      • *: for HID Headlight

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

      Standard Resistance
      RH Side
      Tester Connection Condition Specified Condition
      B2-15 (E) - Body ground Always Below 1 Ω
      LH Side
      Tester Connection Condition Specified Condition
      B5-15 (E) - Body ground Always Below 1 Ω

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

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


    1. Disconnect the B2*1 or B5*2 headlight assembly connector.


      • *1: RH Side

      • *2: LH Side

    2. Disconnect the T53 No. 1 night view ECU connector.

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

      Standard Resistance
      RH Side
      Tester Connection Condition Specified Condition
      B2-13 (IRLY) - T53-15 (IRLY) Always Below 1 Ω
      B2-14 (IRFR) - T53-3 (IRFR)
      B2-13 (IRLY) - Body ground Always 10 kΩ or higher
      B2-14 (IRFR) - Body ground
      LH Side
      Tester Connection Condition Specified Condition
      B5-13 (IRLY) - T53-15 (IRLY) Always Below 1 Ω
      B5-14 (IRFL) - T53-12 (IRFL)
      B5-13 (IRLY) - Body ground Always 10 kΩ or higher
      B5-14 (IRFL) - Body ground

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  3. CHECK NO. 1 NIGHT VIEW ECU


    1. A01FJ1HE05
      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
      T53-15 (IRLY) - Body ground Night view system operating (forcibly operated using Active Test) 1.27 to 1.76 V

    NG

    REPLACE NO. 1 NIGHT VIEW ECU Click here

    OK

  4. INSPECT HEADLIGHT ASSEMBLY


    1. for LED Headlight:


      1. Remove the headlight assembly Click here.

        A01FFJEE03
        Text in Illustration
        *a

        Component without harness connected

        (Headlight Assembly RH)

        		 *b

        Component without harness connected

        (Headlight Assembly LH)

      2. Remove the headlight lens Click here.

      3. Disconnect the A light control ECU (for near-infrared ray emitter) connector.

      4. Disconnect the B and C headlight sub-assembly (for near-infrared ray emitter) connectors.

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

        Standard Resistance
        for RH
        Tester Connection Condition Specified Condition
        4 (SLO) - A-6 Always Below 1 Ω
        13 (IRLY) - A-11 Always Below 1 Ω
        15 (E) - A-7 Always Below 1 Ω
        14 (IRFR) - A-10 Always Below 1 Ω
        A-3 (IRL1) - B-2 Always Below 1 Ω
        A-8 (IRH)- B-1 Always Below 1 Ω
        A-16 (FH) - C-1 Always Below 1 Ω
        A-15 (FL) - C-3 Always Below 1 Ω
        A-5 (FG) - C-2 Always Below 1 Ω
        A-13 (WH1) - B-3 Always Below 1 Ω
        A-12 (WL1) - B-4 Always Below 1 Ω
        for LH
        Tester Connection Condition Specified Condition
        4 (SLO) - A-6 Always Below 1 Ω
        13 (IRLY) - A-11 Always Below 1 Ω
        15 (E) - A-7 Always Below 1 Ω
        14 (IRFL) - A-10 Always Below 1 Ω
        A-3 (IRL1) - B-2 Always Below 1 Ω
        A-8 (IRH)- B-1 Always Below 1 Ω
        A-16 (FH) - C-1 Always Below 1 Ω
        A-15 (FL) - C-3 Always Below 1 Ω
        A-5 (FG) - C-2 Always Below 1 Ω
        A-13 (WH1) - B-3 Always Below 1 Ω
        A-12 (WL1) - B-4 Always Below 1 Ω

    2. for HID Headlight:


      1. Remove the headlight unit assembly Click here.

        A01FGOHE02
        Text in Illustration
        *a

        Component without harness connected

        (Headlight Unit Assembly RH)

        		 *b

        Component without harness connected

        (Headlight Unit Assembly LH)

      2. Remove the headlight lens Click here.

      3. Disconnect the A light control ECU (for near-infrared ray emitter) connector.

      4. Disconnect the B and C headlight sub-assembly (for near-infrared ray emitter) connectors.

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

        Standard Resistance
        for RH
        Tester Connection Condition Specified Condition
        4 (SLO) - A-6 Always Below 1 Ω
        13 (IRLY) - A-11 Always Below 1 Ω
        15 (E) - A-7 Always Below 1 Ω
        14 (IRFR) - A-10 Always Below 1 Ω
        A-3 (IRL1) - B-2 Always Below 1 Ω
        A-8 (IRH)- B-1 Always Below 1 Ω
        A-16 (FH) - C-1 Always Below 1 Ω
        A-15 (FL) - C-3 Always Below 1 Ω
        A-5 (FG) - C-2 Always Below 1 Ω
        A-13 (WH1) - B-3 Always Below 1 Ω
        A-12 (WL1) - B-4 Always Below 1 Ω
        for LH
        Tester Connection Condition Specified Condition
        4 (SLO) - A-6 Always Below 1 Ω
        13 (IRLY) - A-11 Always Below 1 Ω
        15 (E) - A-7 Always Below 1 Ω
        14 (IRFL) - A-10 Always Below 1 Ω
        A-3 (IRL1) - B-2 Always Below 1 Ω
        A-8 (IRH)- B-1 Always Below 1 Ω
        A-16 (FH) - C-1 Always Below 1 Ω
        A-15 (FL) - C-3 Always Below 1 Ω
        A-5 (FG) - C-2 Always Below 1 Ω
        A-13 (WH1) - B-3 Always Below 1 Ω
        A-12 (WL1) - B-4 Always Below 1 Ω
        Result
        Result Proceed to
        OK A
        NG (for LED Headlight) B
        NG (for HID Headlight) C

    B

    REPLACE HEADLIGHT ASSEMBLY Click here

    C

    REPLACE HEADLIGHT UNIT ASSEMBLY Click here

    A

  5. REPLACE HEADLIGHT SUB-ASSEMBLY (NEAR-INFRARED RAY EMITTER)


    1. for LED Headlight:


      1. Temporarily replace the headlight sub-assembly (near-infrared ray emitter) with a new or normally functioning one Click here.

    2. for HID Headlight:


      1. Temporarily replace the headlight sub-assembly (near-infrared ray emitter) with a new or normally functioning one Click here.


    NEXT

  6. CHECK FOR DTC


    1. Clear the DTCs Click here.

    2. Turn the ignition switch off.

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

    4. Check for DTCs Click here.

      OK
      DTC B2816 or B2817 is not output.

    NG

    REPLACE LIGHT CONTROL ECU (FOR NEAR-INFRARED RAY EMITTER) Click here

    OK

    END (HEADLIGHT SUB-ASSEMBLY [NEAR-INFRARED RAY EMITTER] IS DEFECTIVE)

  7. REPLACE LIGHT CONTROL ECU (FOR NEAR-INFRARED RAY EMITTER)


    1. for LED Headlight:


      1. Temporarily replace the light control ECU (for near-infrared ray emitter) with a new or normally functioning one Click here.

    2. for HID Headlight:


      1. Temporarily replace the light control ECU (for near-infrared ray emitter) with a new or normally functioning one Click here.


    NEXT

  8. CHECK FOR DTC


    1. Clear the DTCs Click here.

    2. Turn the ignition switch off.

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

    4. Check for DTCs Click here.

      OK
      DTC B2816 or B2817 is not output.

    NG

    REPLACE NO. 1 NIGHT VIEW ECU Click here

    OK

    END (LIGHT CONTROL ECU [FOR NEAR-INFRARED RAY EMITTER] IS DEFECTIVE)