Problem Symptoms Table

If a normal code is displayed during the DTC check but the problem still occurs, check the circuits for each problem symptom in the order given in the table below and proceed to the relevant troubleshooting page.

NOTE:

When replacing the skid control ECU, sensors, etc., turn the ignition switch OFF.
When replacing the yaw rate sensor and/or the brake actuator assembly, make sure to perform the yaw rate sensor zero point calibration (see CALIBRATION ).

Vehicle stability control system

PROBLEM SYMPTOMS TABLE

Symptom	Suspected area
ABS, BA and/or EBD does not operate	1. CHECK THE DTC AGAIN AND MAKE SURE THAT THE NORMAL SYSTEM CODE IS OUTPUT
	2. IG POWER SOURCE CIRCUIT
	3. FRONT SPEED SENSOR CIRCUIT
	4. REAR SPEED SENSOR CIRCUIT
	5. CHECK THE SKID CONTROL ECU WITH ACTUATOR WITH THE INTELLIGENT TESTER (CHECK THE SKID CONTROL ECU WITH ACTUATOR OPERATION USING THE ACTIVE TEST FUNCTION). IF ABNORMAL, CHECK THE HYDRAULIC CIRCUIT FOR LEAKAGE.
	6. If the symptoms still occur even after the above circuits in suspected areas are inspected and proved to be normal, replace the skid control ECU with actuator
ABS, BA and/or EBD does not operate efficiently	1. CHECK THE DTC AGAIN AND MAKE SURE THAT THE NORMAL SYSTEM CODE IS OUTPUT
	2. FRONT SPEED SENSOR CIRCUIT
	3. REAR SPEED SENSOR CIRCUIT
	4. STOP LIGHT SWITCH ASSEMBLY
	5. CHECK THE SKID CONTROL ECU WITH ACTUATOR WITH THE INTELLIGENT TESTER (CHECK THE SKID CONTROL ECU WITH ACTUATOR OPERATION USING THE ACTIVE TEST FUNCTION). IF ABNORMAL, CHECK THE HYDRAULIC CIRCUIT FOR LEAKAGE.
	6. If the symptoms still occur even after the above circuits in suspected areas are inspected and proved to be normal, replace the skid control ECU with actuator
ABS warning light abnormal (Remains on)	1. ABS WARNING LIGHT CIRCUIT
ABS warning light abnormal (Remains on)	2. Skid control ECU with actuator
ABS sensor DTC check cannot be done	1. CHECK THE DTC AGAIN AND MAKE SURE THAT THE NORMAL SYSTEM CODE IS OUTPUT
	2. TC AND CG TERMINAL CIRCUIT
	3. If the symptoms still occur even after the above circuits in suspected areas are inspected and proved to be normal, replace the skid control ECU with actuator
Sensor signal check cannot be done	1. Skid control ECU with actuator
VSC and/or TRAC does not operate	1. CHECK THE DTC AGAIN AND MAKE SURE THAT THE NORMAL SYSTEM CODE IS OUTPUT
	2. IG POWER SOURCE CIRCUIT
	3. Check hydraulic circuit for leakage
	4. FRONT SPEED SENSOR CIRCUIT
	5. REAR SPEED SENSOR CIRCUIT
	6. YAW RATE SENSOR CIRCUIT (DECELERATION SENSOR)
	7. STEERING SENSOR CIRCUIT
SLIP indicator light abnormal	1. SLIP INDICATOR LIGHT CIRCUIT
SLIP indicator light abnormal	2. Skid control ECU with actuator
TRAC OFF indicator abnormal	1. CHECK THE DTC AGAIN AND MAKE SURE THAT THE NORMAL SYSTEM CODE IS OUTPUT
TRAC OFF indicator abnormal	2. TRAC OFF SWITCH CIRCUIT
VSC DTC check cannot be done	1. CHECK THE DTC AGAIN AND MAKE SURE THAT THE NORMAL SYSTEM CODE IS OUTPUT
VSC DTC check cannot be done	2. TC AND CG TERMINAL CIRCUIT
VSC warning light abnormal	1. CHECK THE DTC AGAIN AND MAKE SURE THAT THE NORMAL SYSTEM CODE IS OUTPUT
VSC warning light abnormal	2. VSC WARNING CIRCUIT