No. 4 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 Operates [Dynamic Stability Control (DSC)]

4	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 operates
Possible cause	DSC DTC is stored Engine control system malfunction Tire and air pressure malfunction The difference of size or air pressure between the front tires and rear tires ABS wheel-speed sensor malfunction Incorrect ABS wheel-speed signal is inputted to DSC HU/CM

DIAGNOSTIC PROCEDURE

STEP	INSPECTION		ACTION
1	CONFIRM DSC AND/OR PCM DTC Retrieve the DSC DTC using the M-MDS. (See ON-BOARD DIAGNOSIS [DYNAMIC STABILITY CONTROL (DSC)] ). Perform the PCM DTC using the M-MDS, if the traction control function has a problem. (See ON-BOARD DIAGNOSTIC TEST [LF, L5] ). (See ON-BOARD DIAGNOSTIC TEST [L3 WITH TC] ). Are any DTCs present?	Yes	Go to the applicable DTC inspection. (See ON-BOARD DIAGNOSIS [DYNAMIC STABILITY CONTROL (DSC)] ). (See DTC TABLE [LF, L5] ). (See DTC TABLE [L3 WITH TC] ).
1		No	Go to the next step.
2	INSPECT TIRE SIZE AND AIR PRESSURE Inspect the tire size and air pressure. Are size and air pressure as specified?	Yes	Go to the next step.
2		No	Replace with the specified tires and adjust the tire air pressure.
*3	INSPECT ABS WHEEL-SPEED SENSOR OUTPUT PULSE Perform the Voltage Pattern Inspection for each ABS wheel-speed sensor. (See FRONT ABS WHEEL-SPEED SENSOR INSPECTION ). (See REAR ABS WHEEL-SPEED SENSOR INSPECTION ). Is the output voltage pattern normal?	Yes	Found the malfunctioning part according to Intermittent Concern Troubleshooting. (See PRECAUTION [DYNAMIC STABILITY CONTROL (DSC)] ).
*3		No	Inspect the ABS wheel-speed sensor and ABS sensor rotor for poor installation.

When performing an asterisked (*) troubleshooting inspection, shake the wiring harness and connectors while doing the inspection to discover whether poor contact points are the cause of any intermittent malfunctions. If there is a problem, check to make sure connectors, terminals and wiring harness are connected correctly and undamaged.