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CAN COMMUNICATION SYSTEM (for LHD) AFS ECU Communication Stop Mode

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DTC Code DTC Name
  AFS ECU Communication Stop Mode
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DESCRIPTION

Detection Item DTC Detection Condition Trouble Area
AFS ECU Communication Stop Mode

Either condition is met:


  • "Headlight swivel (AFS)" is not displayed on the "Bus Check" screen.

  • "AFS ECU Communication Stop Mode" in "DTC Communication Table" applies.

  • Power source or inside of headlight swivel ECU assembly

  • Headlight swivel ECU assembly CAN branch wire or connector

  • Headlight swivel ECU assembly

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WIRING DIAGRAM

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INSPECTION PROCEDURE

Note:

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

Tip:

Operating the ignition switch, any switches or any doors triggers related ECU and sensor communication with the CAN, which causes resistance variation.

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PROCEDURE


  1. Click here

    PRECAUTION

    Note:

    After turning the ignition switch off, waiting time may be required before disconnecting the cable from the battery terminal. Therefore, make sure to read the disconnecting the cable from the battery terminal notice before proceeding with work (Click here).


  2. Click here

    DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL


    1. Disconnect the cable from the negative (-) battery terminal before measuring the resistances of the CAN main wire and the CAN branch wire.

      CAUTION:

      For vehicles with an SRS system:

      Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to disable the SRS system.

      Note:

      When disconnecting the cable, some systems need to be initialized after the cable is reconnected (Click here).


  3. Click here

    CHECK FOR OPEN IN CAN BUS WIRE (HEADLIGHT SWIVEL ECU ASSEMBLY CAN BRANCH WIRE)


    1. A015AG0E05

      Disconnect the E101 headlight swivel ECU assembly connector.

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      E101-12 (MPX1) - E101-13 (MPX2) Ignition switch off 54 to 69 Ω
      Table 1. Text in Illustration
      *a

      Rear view of wire harness connector

      (to Headlight Swivel ECU Assembly)

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    CHECK HARNESS AND CONNECTOR (HEADLIGHT SWIVEL ECU ASSEMBLY - BATTERY AND BODY GROUND)


    1. A015AG0E06

      Connect the cable to the negative (-) battery terminal.

      Note:

      When disconnecting the cable, some systems need to be initialized after the cable is reconnected (Click here).

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      E101-22 (E1) - Body ground Always Below 1 Ω

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

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      E101-15 (IG) - Body ground Ignition switch ON 11 to 14 V
      Table 2. Text in Illustration
      *a

      Rear view of wire harness connector

      (to Headlight Swivel ECU Assembly)

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    REPAIR OR REPLACE HEADLIGHT SWIVEL ECU ASSEMBLY CAN BRANCH WIRE OR CONNECTOR (MPX1, MPX2)

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    REPLACE HEADLIGHT SWIVEL ECU ASSEMBLYClick here

  7. Click here

    REPAIR OR REPLACE HARNESS OR CONNECTOR