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No.10 Abs Or TCS1 Operates Frequently/TCS Does Not Work Correctly1: DSC System Function Contains Traction Control Function, DSC Indicator Light Goes On And Off While DSC Is Operating

SYMPTOM TROUBLESHOOTING

10	ABS or TCS (^1 ) operates frequently./TCS does not work correctly. (^1 ): DSC system function contains traction control function; DSC indicator light goes on and off while DSC is operating.
[TROUBLESHOOTING HINTS] There is a difference in size or air pressure between the front and rear tires Incorrect ABS wheel-speed signal is input to DSC HU/CM There is a malfunction in the engine control system (TCS malfunction)

DIAGNOSTIC PROCEDURE TABLE

STEP	INSPECTION		ACTION
1	INSPECT DTCS IN DSC HU/CM Inspect the DTC for the DSC ON-BOARD DIAGNOSTIC SYSTEM. Have DTCs been stored in memory?	Yes	Perform the applicable DTC inspection. (See DTC TABLE .)
1		No	Go to the next step.
2	INSPECT TIRE SIZE AND AIR PRESSURE Inspect the tire size and the air pressure. Are size and air pressure as specified?	Yes	Go to the next step.
2		No	Replace with specified tires and adjust tire air pressure.
3	INSPECT ABS WHEEL-SPEED SENSOR OUTPUT VALUE Inspect the output value from the ABS wheel-speed sensor. (See SENSOR OUTPUT VALUE INSPECTION .) (See SENSOR OUTPUT VALUE INSPECTION .) Is the output value normal?	Yes	Find that malfunctioning part according to "INTERMITTENT CONCERN TROUBLESHOOTING".
3		No	ABS wheel-speed sensor installation inspection: Inspect the sensor for looseness and verify that it is securely installed. Sensor rotor installation inspection: Inspect the sensor rotor for poor installation and chipping of sensor rotor teeth. (If sensor rotor is installed poorly, it may cause output of abnormal wave form at high speed.)