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)]

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 HU/CM 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

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 HU/CM 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

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 [MZR 1.5, MZR 1.6].) (See ON-BOARD DIAGNOSTIC TEST [MZR 2.0, MZR 2.5].) (See ON-BOARD DIAGNOSTIC TEST [MZR 2.0 DISI i-stop].) (See ON-BOARD DIAGNOSTIC TEST [MZR 2.3 DISI Turbo].) (See ON-BOARD DIAGNOSTIC TEST [MZ-CD 1.6].) (See ON-BOARD DIAGNOSTIC TEST [MZR-CD 2.2].) (See ON-BOARD DIAGNOSTIC TEST [SKYACTIV-G 2.0].) • Are any DTCs present?	Yes	Go to the applicable DTC inspection. (See ON-BOARD DIAGNOSIS [DYNAMIC STABILITY CONTROL (DSC)].) (See DTC TABLE [MZR 1.5, MZR 1.6].) (See DTC TABLE [MZR 2.0, MZR 2.5].) (See DTC TABLE [MZR 2.0 DISI i-stop].) (See DTC TABLE [MZR 2.3 DISI Turbo].) (See DTC TABLE [MZ-CD 1.6].) (See DTC TABLE [MZR-CD 2.2].) (See DTC TABLE [SKYACTIV-G 2.0].)
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.
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)].)
No	Inspect the ABS wheel-speed sensor and ABS sensor rotor for poor installation.

STEP

INSPECTION

ACTION

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 [MZR 1.5, MZR 1.6].)

(See ON-BOARD DIAGNOSTIC TEST [MZR 2.0, MZR 2.5].)

(See ON-BOARD DIAGNOSTIC TEST [MZR 2.0 DISI i-stop].)

(See ON-BOARD DIAGNOSTIC TEST [MZR 2.3 DISI Turbo].)

(See ON-BOARD DIAGNOSTIC TEST [MZ-CD 1.6].)

(See ON-BOARD DIAGNOSTIC TEST [MZR-CD 2.2].)

(See ON-BOARD DIAGNOSTIC TEST [SKYACTIV-G 2.0].)

• Are any DTCs present?

Yes

Go to the applicable DTC inspection.

(See ON-BOARD DIAGNOSIS [DYNAMIC STABILITY CONTROL (DSC)].)

(See DTC TABLE [MZR 1.5, MZR 1.6].)

(See DTC TABLE [MZR 2.0, MZR 2.5].)

(See DTC TABLE [MZR 2.0 DISI i-stop].)

(See DTC TABLE [MZR 2.3 DISI Turbo].)

(See DTC TABLE [MZ-CD 1.6].)

(See DTC TABLE [MZR-CD 2.2].)

(See DTC TABLE [SKYACTIV-G 2.0].)

Go to the next step.

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.

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)].)

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.