Diagnostic procedure

NO. 5 ABS OR TCS 1 OPERATES FREQUENTLY/TCS DOES NOT WORK CORRECTLY 1 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 (DYNAMIC STABILITY CONTROL (DSC)) .) Retrieve the PCM DTC using the M-MDS, if the traction control function has problem. (See ON-BOARD DIAGNOSTIC TEST [PCM (SKYACTIV-G 2.5 (WITH CYLINDER DEACTIVATION))] .) (See ON-BOARD DIAGNOSTIC TEST [PCM (SKYACTIV-G 2.5 (WITHOUT CYLINDER DEACTIVATION))] .) (See ON-BOARD DIAGNOSTIC TEST [PCM (SKYACTIV-G 2.5T)] .) Are any DTCs present?	Yes	Go to the applicable DTC inspection. (See DTC TABLE (DYNAMIC STABILITY CONTROL (DSC)) .) (See DTC TABLE [PCM (SKYACTIV-G 2.5 (WITH CYLINDER DEACTIVATION))] .) (See DTC TABLE [PCM (SKYACTIV-G 2.5 (WITHOUT CYLINDER DEACTIVATION))] .) (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. Tire size and air pressure as specified? (See WHEEL AND TIRE SPECIFICATION .)	Yes	Go to the next step.
2		No	Replace with specified tires and adjust tire air pressure. (See WHEEL AND TIRE SPECIFICATION .)
*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 [AWD] .) 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 adhered. ABS sensor rotor installation inspection: Inspect the ABS sensor rotor for poor installation. Repair or replace any malfunctioning parts according to the inspection result. (See FRONT ABS WHEEL-SPEED SENSOR REMOVAL/INSTALLATION .) (See REAR ABS WHEEL-SPEED SENSOR REMOVAL/INSTALLATION [2WD] .) (See REAR ABS WHEEL-SPEED SENSOR REMOVAL/INSTALLATION [AWD] .)

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.