NO.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 [DYNAMIC STABILITY CONTROL (DSC)]

NO.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 [DYNAMIC STABILITY CONTROL (DSC)]

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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.

[TROUBLESHOOTING HINTS]

•  There is a difference in size or air pressure between the front and rear tires

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

•  There is a malfunction in the engine control system (TCS malfunction)

Diagnostic procedure

STEP	INSPECTION		ACTION
1	CONFIRM DSC HU/CM AND/OR PCM DTC • Retrieve DSC HU/CM DTC using the M-MDS. • Retrieve PCM DTC using the M-MDS, if the traction control function has problem. • Is there any DTC retrieved?	Yes	Go to the applicable DTC troubleshooting procedure. (See ON-BOARD DIAGNOSIS [DYNAMIC STABILITY CONTROL (DSC)].) (See DTC TABLE [L8, LF, L5].) (See DTC TABLE [MZR-CD (RF Turbo)].) (See DTC TABLE [MZR-CD 2.2].)
1		No	Go to the next step.
2	INSPECT TIRE SIZE AND AIR PRESSURE • Inspect tire size and 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 PULSE • Perform Voltage Pattern Inspection for each ABS wheel-speed sensor. (See FRONT ABS WHEEL-SPEED SENSOR INSPECTION.) (See REAR ABS WHEEL-SPEED SENSOR INSPECTION.) • Is output voltage pattern normal?	Yes	Found malfunctioning part according to “INTERMITTENT CONCERN TROUBLESHOOTING”.
^*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.

• 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.

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.
[TROUBLESHOOTING HINTS] • There is a difference in size or air pressure between the front and rear tires • Incorrect ABS wheel-speed signal is inputted to DSC HU/CM • There is a malfunction in the engine control system (TCS malfunction)