C1647

DTC Code	DTC Name
C1647	G Sensor Failure

DESCRIPTION

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

DTC No.	Detection Item	DTC Detection Condition	Trouble Area
C1647	G Sensor Failure	Airbag ECU assembly malfunction	Vehicle stability control 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

CHECK FOR DTC

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

Body Electrical > IPA/ICS/Clearance Sonar > Trouble Codes
Clear the DTCs according to the screen on the GTS.

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

Recheck for DTCs.

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

Tech Tips

DTC C1647 is stored when a malfunction signal sent from the vehicle stability control 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

INTELLIGENT CLEARANCE SONAR SYSTEM, Diagnostic DTC:C1647