VARIABLE GEAR RATIO STEERING SYSTEM, Diagnostic DTC:C15A5/65

DTC Code DTC Name
C15A5/65 Actuator Malfunction

DESCRIPTION

If the steering control ECU detects a malfunction in the lock mechanism, it will turn the master warning light on, store the DTC C15A5/65, and stop VGRS operation.

DTC Code Detection Condition Trouble Area
C15A5/65 The steering control ECU detects that the LG terminal voltage is abnormal

  • Wire harness or connector

  • Steering actuator

  • Steering control ECU

WIRING DIAGRAM

A01GHW2E01

INSPECTION PROCEDURE

PROCEDURE


  1. CHECK HARNESS AND CONNECTOR (STEERING CONTROL ECU - STEERING ACTUATOR)

    A01GJVAE02

    1. Disconnect the A41 steering control ECU connector.

    2. Disconnect the x2 steering actuator connector.

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

      Standard resistance
      Tester Connection Condition Specified Condition
      A41-3 (LV) - x2-4 (LV) Always Below 1 Ω
      A41-12 (LG) - x2-10 (LG) Always Below 1 Ω
      A41-3 (LV) - Body ground Always 10 kΩ or higher
      A41-12 (LG) - Body ground Always 10 kΩ or higher

    4. Turn the engine switch on (IG).

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

      Standard voltage
      Tester Connection Switch Condition Specified Condition
      A41-3 (LV) - Body ground Engine switch on (IG) Below 1 V
      A41-12 (LG) - Body ground Engine switch on (IG) Below 1 V

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  2. CHECK HARNESS AND CONNECTOR (STEERING CONTROL ECU - STEERING ACTUATOR)

    A01GJVAE03

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

      Standard resistance
      Tester Connection Condition Specified Condition
      x2-4 (LV) - x2-10 (LG) Always 10 to 100 Ω
      x2-4 (LV) - Body ground Always 10 kΩ or higher
      x2-10 (LG) - Body ground Always 10 kΩ or higher
      Result
      Result Proceed to
      OK A
      NG (for 2WD) B
      NG (for AWD) C

    B

    REPLACE STEERING ACTUATOR Click here

    C

    REPLACE STEERING ACTUATOR Click here

    A

    REPLACE STEERING CONTROL ECU Click here