DYNAMIC REAR STEERING SYSTEM, Diagnostic DTC:C1B09/19

DTC Code	DTC Name
C1B09/19	VGRS System Malfunction

DESCRIPTION

When the DRS ECU (rear steering control ECU) detects a problem with the VGRS ECU (front steering control ECU) via CAN communication, a DTC is stored and the rear turning angle is returned to the neutral position.

DTC Code	DTC Detection Condition	Trouble Area
C1B09/19	All conditions are met for approximately 1 second or more: 5 seconds or more elapse after turning the power switch on (IG). The power source voltage is 10 to 16 V. DRS ECU communication is normal. A problem is detected with the VGRS ECU via CAN communication.	VGRS ECU (front steering control ECU)

DTC Code

DTC Detection Condition

Trouble Area

C1B09/19

All conditions are met for approximately 1 second or more:

5 seconds or more elapse after turning the power switch on (IG).
The power source voltage is 10 to 16 V.
DRS ECU communication is normal.
A problem is detected with the VGRS ECU via CAN communication.

VGRS ECU (front steering control ECU)

INSPECTION PROCEDURE

Note

When replacing the VGRS ECU (front steering control ECU), perform actuator angle neutral position calibration and initialization after replacement Click here.

PROCEDURE

CHECK FOR DTC (VARIABLE GEAR RATIO STEERING SYSTEM)
1. Check for DTCs in the variable gear ratio steering system Click here.
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GO TO VARIABLE GEAR RATIO STEERING SYSTEM (DIAGNOSTIC TROUBLE CODE CHART) Click here