INTELLIGENT CLEARANCE SONAR SYSTEM, Diagnostic DTC:C1647

DTC Code DTC Name
C1647 G Sensor Failure

DESCRIPTION

The clearance warning sonar ECU assembly communicates with the yaw rate and acceleration sensor (airbag ECU assembly) circuit via CAN communication, and if it is determined that the yaw rate and acceleration sensor (airbag ECU assembly) is malfunctioning, DTC C1647 is stored.

DTC No. Detection Item DTC Detection Condition Trouble Area
C1647 G Sensor Failure Yaw rate and acceleration sensor (airbag ECU assembly) malfunction Electronically controlled brake system

CAUTION / NOTICE / HINT

Note


  • After turning the power switch off, waiting time may be required before disconnecting the cable from the negative (-) auxiliary battery terminal. Therefore make sure to read the disconnecting the cable from the negative (-) auxiliary battery terminal notices before proceeding with work.

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  • After replacing an ultrasonic sensor or the clearance warning ECU assembly, perform the necessary procedures (adjustment, calibration, initialization or registration).

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PROCEDURE


  1. CHECK DTC OUTPUT


    1. Using the GTS, check for DTCs according to the prompts on the screen.

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      Body Electrical > IPA/ICS/Clearance Sonar > Trouble Codes

    2. Clear the DTCs according to the screen on the GTS.

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      Body Electrical > IPA/ICS/Clearance Sonar > Clear DTCs

    3. Recheck for DTCs.

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      Body Electrical > IPA/ICS/Clearance Sonar > Trouble Codes

      Tech Tips


      • DTC C1647 is stored when a malfunction signal sent from the electronically controlled brake system is detected.

      • If the malfunctioning part has been repaired or replaced before rechecking for DTCs, DTC C1647 will not be output again.

      • If DTC C1647 is output frequently, duplicate the conditions that cause the problem symptoms and perform the inspection again, even though the DTC was not output when rechecking for DTCs.

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      Result
      Result Proceed to
      DTC C1647 is output A
      DTC C1647 is not output B

    A

    GO TO ELECTRONICALLY CONTROLLED BRAKE SYSTEM Click here

    B

    USE SIMULATION METHOD TO CHECK Click here