DTC C1963 [DSC/RSC]

id0402b3811900

Note

• The initial point of the SAS control module (yaw rate sensor part) is corrected based on the signals from each sensor while the vehicle is driven straight, however, the correction cannot be performed if the vehicle is continuously driven on a curve and DTC C1963 is detected.

DTC

C1963

SAS control module (Yaw rate sensor part) initial point correction error

DETECTION CONDITION

•  When a difference occurs between the estimated yaw rate value which is calculated by each sensor and the yaw rate value which is detected by the SAS control module (yaw rate sensor part).

•  The yaw rate sensor initialization is not completed.

POSSIBLE CAUSE

•  It occurs since the initial point correction for the SAS control module (yaw rate sensor part) cannot be performed due to the vehicle being continuously driven on a curve, and does not indicate an DSC/RSC system malfunction

•  The vehicle continues to zigzag after accelerating off the mark (only when ignition is switched ON for first time).

•  DSC/RSC HU/CM malfunction

Diagnostic procedure

STEP	INSPECTION		ACTION
1	PERFORM INITIALIZATION PROCEDURE • Perform the initialization procedure for the DSC/RSC HU/CM. (See DSC/RSC SENSOR INITIALIZATION PROCEDURE.)	After the initialization procedure for the DSC/RSC HU/CM has been completed, go to the next step.
2	VERIFY DTC TROUBLESHOOTING COMPLETED • Clear the DTC from the memory. (See ON-BOARD DIAGNOSIS [DSC/RSC].) • Start the engine and drive the vehicle at 72 km/h {45 mph}or more. • Is the same DTC present?	Yes	Repeat the inspection from Step 1. If the malfunction occurs again, replace the DSC/RSC HU/CM, then go to the next step. (See DSC/RSC HU/CM REMOVAL/INSTALLATION [L.H.D.].) (See DSC/RSC HU/CM REMOVAL/INSTALLATION [R.H.D.].)
2		No	Go to the next step.
3	VERIFY AFTER REPAIR PROCEDURE • Are any other DTCs present?	Yes	Go to the applicable DTC inspection. (See ON-BOARD DIAGNOSIS [DSC/RSC].)
3		No	DTC troubleshooting completed.

DTC	C1963		SAS control module (Yaw rate sensor part) initial point correction error
DETECTION CONDITION		• When a difference occurs between the estimated yaw rate value which is calculated by each sensor and the yaw rate value which is detected by the SAS control module (yaw rate sensor part). • The yaw rate sensor initialization is not completed.
POSSIBLE CAUSE		• It occurs since the initial point correction for the SAS control module (yaw rate sensor part) cannot be performed due to the vehicle being continuously driven on a curve, and does not indicate an DSC/RSC system malfunction • The vehicle continues to zigzag after accelerating off the mark (only when ignition is switched ON for first time). • DSC/RSC HU/CM malfunction