NO.5 ABS OR TCS<sup>*1</sup> OPERATES FREQUENTLY/TCS DOES NOT WORK CORRECTLY <sup>*1</sup>: DSC SYSTEM FUNCTION CONTAINS TRACTION CONTROL FUNCTION, TCS/DSC INDICATOR LIGHT TURNS ON AND OFF WHILE TCS OPERATES [DYNAMIC STABILITY CONTROL (DSC)]

NO.5 ABS OR TCS^*1 OPERATES FREQUENTLY/TCS DOES NOT WORK CORRECTLY ^*1: DSC SYSTEM FUNCTION CONTAINS TRACTION CONTROL FUNCTION, TCS/DSC INDICATOR LIGHT TURNS ON AND OFF WHILE TCS OPERATES [DYNAMIC STABILITY CONTROL (DSC)]

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5	ABS or TCS^1 operates frequently TCS does not work correctly ^1: DSC system function contains traction control function, TCS/DSC indicator light turns on and off while TCS operates
POSSIBLE CAUSE	• Difference in size or air pressure between front and rear tires. • Incorrect ABS wheel-speed signal is input to DSC HU/CM. • Malfunction in engine control system. (TCS malfunction)

ABS or TCS^*1 operates frequently

TCS does not work correctly

^*1: DSC system function contains traction control function, TCS/DSC indicator light turns on and off while TCS operates

POSSIBLE CAUSE

• Difference in size or air pressure between front and rear tires.

• Incorrect ABS wheel-speed signal is input to DSC HU/CM.

• Malfunction in engine control system. (TCS malfunction)

Diagnostic procedure

STEP	INSPECTION		ACTION
1	CONFIRM DSC HU/CM AND PCM DTC • Retrieve the DSC HU/CM DTC using the M-MDS. (See DTC INSPECTION [DSC HU/CM].) • Retrieve the PCM DTC using the M-MDS, if the traction control function has a problem. (See ON-BOARD DIAGNOSTIC TEST [PCM (SKYACTIV-G 2.5T)].) • Are any DTCs present?	Yes	Go to the applicable DTC inspection. (See DTC TABLE [DSC HU/CM].) (See DTC TABLE [PCM (SKYACTIV-G 2.5T)].)
1		No	Go to the next step.
2	INSPECT TIRE SIZE AND AIR PRESSURE • Inspect tire size and air pressure. • Is the tire 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 • Inspect for each ABS wheel-speed sensor. (See FRONT ABS WHEEL-SPEED SENSOR INSPECTION.) (See REAR ABS WHEEL-SPEED SENSOR INSPECTION [2WD].) (See REAR ABS WHEEL-SPEED SENSOR INSPECTION [4WD].) • Is the ABS wheel-speed sensor normal?	Yes	Found malfunctioning part according to the “INTERMITTENT CONCERN TROUBLESHOOTING”. (See PRECAUTION [DYNAMIC STABILITY CONTROL (DSC)].)
3		No	ABS wheel-speed sensor installation inspection: • Inspect the ABS wheel-speed sensor for looseness and confirm it is securely installed. ABS sensor rotor installation inspection: • Inspect the ABS sensor rotor for poor installation. Repair or replace any malfunctioning parts according to the inspection result.