LANE DEPARTURE ALERT SYSTEM Lane Departure Alert System Circuit

DESCRIPTION

When the ignition switch is ON, power is supplied to the pre-crash safety city sensor.

WIRING DIAGRAM

A00583ZE11
*1 from IG1 Relay
*2 ECU-IG NO.1
*3 Pre-crash Safety City Sensor

CAUTION / NOTICE / HINT

Note


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

  • When replacing the pre-crash safety city sensor, replace it with a new one and be sure to initialize the settings. If an ECU which was installed to another vehicle is used, the information stored in the pre-crash safety city sensor will not match the information from the vehicle and, as a result, a DTC may be output.

  • When the pre-crash safety city sensor is replaced with a new one or it is removed, camera beam axis learning must be performed.

PROCEDURE


  1. CHECK HARNESS AND CONNECTOR (PRE-CRASH SAFETY CITY SENSOR - BATTERY AND BODY GROUND)

    Note

    DTCs may be output when connectors are disconnected during inspection. Therefore, make sure to clear the DTCs using the GTS once the inspection has been completed.


    1. A00564EE03
      Text in Illustration
      *a

      Front view of wire harness connector

      (to Pre-crash Safety City Sensor)

      Disconnect the K14 connector of the pre-crash safety city sensor connector.

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

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      K14-7 (IG1) - Body ground Ignition switch ON 11 to 14 V
      K14-7 (IG1) - Body ground Ignition switch off Below 1 V

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      K14-10 (GND) - Body ground Always Below 1 Ω

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  2. CHECK CAN COMMUNICATION SYSTEM


    1. Use the GTS to check if the CAN communication system is functioning normally Click here.

      Result
      Result Proceed to
      CAN communication system DTCs are not output A
      CAN communication system DTCs are output B

    A

    PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE Click here

    B

    GO TO CAN COMMUNICATION SYSTEM Click here