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STEERING LOCK SYSTEM Power Source Circuit

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DTC Code DTC Name
  Power Source Circuit
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DESCRIPTION

This circuit supplies voltage from the battery to terminal B of the steering lock ECU. This circuit is used as power source for the steering lock ECU, motor, communication and peripheral circuits.

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WIRING DIAGRAM

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INSPECTION PROCEDURE

Tip:

  • When the engine switch is off, the main body ECU may occasionally go into a non-active state called sleep mode. Therefore, before proceeding with the inspection, it is necessary to perform the following step to wake up the ECU:

    Before starting the inspection, with the engine switch off, open the driver door. Then (with the engine switch still off) open and close any door several times at 1.5-second intervals.

  • After replacing the steering lock actuator assembly (steering lock ECU), confirm the lock/unlock operation of the steering lock (Click here).

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PROCEDURE


  1. Click here

    CHECK HARNESS AND CONNECTOR (STEERING LOCK ACTUATOR ASSEMBLY - BODY GROUND)


    1. A01CFQCE19

      Disconnect the G22 connector from the steering lock actuator assembly.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      G22-1 (GND) - Body ground Always Below 1 Ω
      G22-2 (SGND) - Body ground Always Below 1 Ω

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    CHECK HARNESS AND CONNECTOR (STEERING LOCK ACTUATOR ASSEMBLY - BATTERY)


    1. A01CFQCE21

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      G22-7 (B) - Body ground Always 11 to 14 V

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    REPAIR OR REPLACE HARNESS OR CONNECTOR (STEERING LOCK ACTUATOR ASSEMBLY - BATTERY)

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    REPAIR OR REPLACE HARNESS OR CONNECTOR

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    PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLEClick here