Diagnostic procedure

NO. 5 ABS OR TCS*1 OPERATES FREQUENTLY/TCS DOES NOT WORK CORRECTLY*1: DSC SYSTEM FUNCTION CONTAINS TRACTION CONTROL FUNCTION DIAGNOSTIC PROCEDURE

STEP

INSPECTION

ACTION

CONFIRM DSC HU/ Control Module AND PCM DTC

Retrieve the DSC HU/ Control Module DTC using the M-MDS.
(See DTC INSPECTION .)
Retrieve the PCM DTC using the M-MDS, if the traction control function has problem. (See ON-BOARD DIAGNOSTIC TEST (VIN M) .) (See ON-BOARD DIAGNOSTIC TEST (VIN Y) .)
Are any DTCs present?

Yes

Go to the applicable DTC inspection.
(See DTC TABLE .)
(See DTC TABLE (VIN M) .)
(See DTC TABLE (VIN Y) .)

Go to the next step.

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.

Replace with specified tires and adjust tire air pressure.
(See WHEEL AND TIRE SPECIFICATION .)

⁽¹⁾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] .)
Is the ABS wheel-speed sensor normal?

Yes

Found malfunctioning part according to the "INTERMITTENT CONCERN TROUBLESHOOTING".
(See PRECAUTION .)

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] .)

⁽¹⁾

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.