NO.6 RSC OPERATES FREQUENTLY/RSC DOES NOT WORK CORRECTLY [DSC/RSC]


id0403b3815900

6
RSC *operates frequently/RSC* does not work correctly
*: DSC/RSC system contains roll stability control function; DSC indicator light illuminates and goes out and while DSC/RSC is operating.
Possible cause
•  DSC/RSC HU/CM detected malfunction (input and out put devise malfunction)
•  Poor installation of SAS control module and/or steering angel sensor (If any of the above sensors are poorly installed, DSC/RSC may operate intermittently)
•  When replacing the DSC/RSC HU/CM, or SAS control module, initialization is not performed (If initialization is not performed correctly, DSC/RSC may not work correctly)
•  Tire problem (low or high air pressure, excessive tire wear, different grip level for four wheels)
•  Poor installation or malfunction suspension parts (shock absorber, stabilizer)
•  Communication error between DSC/RSC HU/CM and SAS control module (CAN-2 signal)

Diagnostic Procedure

STEP
INSPECTION
ACTION
1
INSPECT DTC IN DSC/RSC HU/CM AND SAS CONTROL MODULE FOR DTCs
•  Inspect DTC for the ON-BOARD DIAGNOSTIC SYSTEM.
•  Have DTCs been stored in memory?
Yes
Perform the applicable DTC inspection
(See DTC TABLE.)
No
Go to the next step.
2
VERIFY THAT EACH SENSOR IS INSTALLED
•  Are the SAS control module and steering angle sensor securely installed?
Yes
Go to the next step.
No
Install the suspect sensor securely.
3
VERIFY EACH SENSOR IS INITIALIZED
•  Was initialized performed after replacement of the DSC/RSC HU/CM or SAS control module?
Yes
Go to the next step.
No
Perform initialization procedure.
4
VERIFY THAT TIRE CONDITION
•  Verify tire condition for following:
―  Air pressure
―  Wear
―  Grip level (different by four wheels)
•  Are tires conditions okay?
Yes
Go to the next step.
No
Adjust, repair or replace suspect tire.
5
VERIFY SUSPENSION PART
•  Verify vehicle posture.
•  Is there an inclination in the posture of the vehicle right and left, left and rear?
Yes
Inspect the following suspension part:
•  Shock absorber
•  Stabilizer
No
Find malfunctioning part according to “intermittent concern troubleshooting”.