DYNAMIC REAR STEERING SYSTEM, Diagnostic DTC:C1B21, C1B22, C1B23, C1B25

DTC Code DTC Name
C1B21 ECU Malfunction(CPU)
C1B22 ECU Malfunction(Internal Line)
C1B23 ECU Malfunction(Substrate Temperature Sensor)
C1B25 ECU Malfunction(Flash Memory)

DESCRIPTION

When the DRS ECU (rear steering control ECU) detects an internal problem with the ECU, DTCs are stored.

DTC No. Detection Item DTC Detection Condition Trouble Area Warning Indicate Return-to-normal Condition
C1B21 ECU Malfunction(CPU) After the power switch is turned on (IG), an internal problem with the ECU is detected. DRS ECU (rear steering control ECU) Comes on Power switch on (IG) again
C1B22 ECU Malfunction(Internal Line) After the power switch is turned on (IG), an internal problem with the ECU is detected. DRS ECU (rear steering control ECU) Comes on Power switch on (IG) again
C1B23 ECU Malfunction(Substrate Temperature Sensor) After the power switch is turned on (IG), an internal problem with the ECU is detected. DRS ECU (rear steering control ECU) Comes on Power switch on (IG) again
C1B25 ECU Malfunction(Flash Memory) After the power switch is turned on (IG), an internal problem with the ECU is detected. DRS ECU (rear steering control ECU) Comes on Power switch on (IG) again

CAUTION / NOTICE / HINT

Note

When replacing the DRS ECU (rear steering control ECU), perform neutral position memorization and motor rotation angle sensor calibration.

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PROCEDURE


  1. REPLACE DRS ECU (REAR STEERING CONTROL ECU)


    1. Replace the DRS ECU (rear steering control ECU).

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      Result
      Proceed to
      NEXT

    NEXT

    END