FORWARD RECOGNITION CAMERA SYSTEM, Diagnostic DTC:U0182

DTC Code DTC Name
U0182 Lost Communication with AFS ECU

DESCRIPTION

The forward recognition camera communicates with the No. 1 headlight ECU sub-assembly LH via CAN communication. If there is a communication error with the No. 1 headlight ECU sub-assembly LH, the forward recognition camera store DTC U0182.

DTC No. Detection Item DTC Detection Condition Trouble Area
U0182 Lost Communication with AFS ECU 2 seconds after the power switch is turned on (IG), a communication error between the No. 1 headlight ECU sub-assembly LH and the forward recognition camera is detected for approximately 5 seconds or more.

  • CAN communication system

  • No. 1 headlight ECU sub-assembly LH

  • Forward recognition camera

WIRING DIAGRAM

B006HB0E02

CAUTION / NOTICE / HINT

Note


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

  • When replacing the forward recognition camera, always replace it with a new one. If a forward recognition camera which was installed to another vehicle is used, the information stored in the forward recognition camera will not match the information from the vehicle. As a result, a DTC may be stored.

  • If the forward recognition camera has been replaced with a new one, be sure to perform Forward Recognition Camera Learning.

    Click here

  • After turning the power switch off, waiting time may be required before disconnecting the cable from the negative (-) auxiliary battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) auxiliary battery terminal notices before proceeding with work.

    Click here

PROCEDURE


  1. READ VALUE USING GTS (CAN BUS CHECK)


    1. Connect the GTS to the DLC3.

    2. Turn the power switch on (IG).

    3. Turn the GTS on.

    4. Enter the following menus: System Select / Can Bus Check.

      Click here


      CAN Bus Check
      Result
      Result Proceed to
      All of the ECUs and sensors that are currently connected to the CAN communication system are displayed A
      None of the ECUs and sensors that are currently connected to the CAN communication system are displayed, or some of them are not displayed B

    B

    GO TO CAN COMMUNICATION SYSTEM Click here

    A

  2. CHECK FOR DTCs (CAN COMMUNICATION DTC OUTPUT)

    Tech Tips

    When pre-crash safety system DTC U1002 is output, check that the local bus is functioning normally by performing the diagnostic procedure for U1002.


    1. Check for DTCs.

      Click here


      Body Electrical > Pre-Crash 2 > Trouble Codes
      Result
      Result Proceed to
      DTC U1002 is not output A
      DTC U1002 is output B

    B

    GO TO PRE-CRASH SAFETY SYSTEM Click here

    A

  3. CHECK CAN BUS LINE

    Tech Tips

    If the result is not as specified, a malfunction in a CAN communication line is suspected.


    1. Turn the power switch off.

    2. Disconnect the cable from the negative (-) auxiliary battery terminal.

    3. Disconnect the O6 forward recognition camera connector.

    4. Disconnect the A15 No. 1 headlight ECU sub-assembly LH connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      O6-6 (CANH) - A15-22 (LCH) Always Below 1 Ω
      O6-12 (CANL) - A15-21 (LCL) Always Below 1 Ω

    6. Connect the A15 No. 1 headlight ECU sub-assembly LH connector.

    7. Connect the O6 forward recognition camera connector.

      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  4. CHECK POWER SOURCE CIRCUIT (NO. 1 HEADLIGHT ECU SUB-ASSEMBLY LH)


    1. B006I4UC18
      *a

      Front view of wire harness connector

      (to No. 1 Headlight ECU Sub-assembly LH)

      Disconnect the A15 No. 1 headlight ECU sub-assembly LH connector.

    2. Turn the power switch on (IG).

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      A15-4 (IG) - Body ground Power switch on (IG) 11 to 14 V

    4. Turn the power switch off.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      A15-12 (GND) - Body ground Always Below 1 Ω

    6. Reconnect the A15 No. 1 headlight ECU sub-assembly LH connector.

      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR (POWER SOURCE CIRCUIT)

    OK

  5. REPLACE NO. 1 HEADLIGHT ECU SUB-ASSEMBLY LH


    1. Replace the No. 1 headlight ECU sub-assembly LH.

      Click here

      Result
      Proceed to
      NEXT

    NEXT

  6. CHECK FOR DTCs (FORWARD RECOGNITION CAMERA SYSTEM)


    1. Clear the DTCs.

      Click here


      Chassis > Front Recognition Camera > Clear DTCs

    2. Perform the following procedure.

      Tech Tips

      If the following procedure is not performed, the previously output DTC cannot be detected.


      1. Turn the power switch on (IG) and wait 7 seconds or more.

    3. Check for DTCs.

      Click here


      Chassis > Front Recognition Camera > Trouble Codes
      Result
      Result Proceed to
      DTC U0182 is not output A
      DTC U0182 is output B

    A

    END (NO. 1 HEADLIGHT ECU SUB-ASSEMBLY LH WAS DEFECTIVE)

    B

    REPLACE FORWARD RECOGNITION CAMERA Click here