Problem Symptoms Table

WARNING: This page is about a different car, the 2011 Toyota Avalon. However, it is still accessible from the selected car via links, so may be relevant.

If there are no DTCs output but the problem still occurs, check the circuits for each problem symptom in the order given in the following table and proceed to VEHICLE STABILITY CONTROL SYSTEM the relevant troubleshooting area below

NOTE:

When replacing the ABS & TRACTION actuator assembly, sensors, etc., turn the ignition switch off.

HINT:

Use the table below to help determine the case of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table.
Check each symptoms by checking the suspected areas in the order they are listed. Replace parts as necessary.
Inspect the fuses and relays related to this system before inspecting the suspected areas below.

VEHICLE STABILITY CONTROL SYSTEM

Symptom	Suspected Area	See
ABS,BA and/or EBD does not operate	Check for DTCs again and make sure that the normal system code is output.	Refer to DTC CHECK / CLEAR
	IG power source circuit	Refer to DTC C1241/41: Low Battery Positive Voltage or Abnormally High Battery Positive Voltage
	Front speed sensor circuit	Refer to DTC C0200/31: Right Front Wheel Speed Sensor Signal Malfunction; DTC C0205/32: Left Front Wheel Speed Sensor Signal; DTC C1235/35: Foreign Object is Attached on Tip of Front Speed Sensor RH; DTC C1236/36: Foreign Object is Attached on Tip of Front Speed Sensor LH; DTC C1271/71: Low Output Signal of Front Speed Sensor RH (Test Mode DTC); DTC C1272/72: Low Output Signal of Front Speed Sensor LH (Test Mode DTC); DTC C1275/75: Abnormal Change in Output Signal of Front Speed Sensor RH (Test Mode DTC); DTC C1276/76: Abnormal Change in Output Signal of Front Speed Sensor LH (Test Mode DTC)
	Rear speed sensor circuit	Refer to DTC C0210/33: Right Rear Wheel Speed Sensor Signal Malfunction; DTC C0215/34: Left Rear Wheel Speed Sensor Signal; DTC C1238/38: Foreign Object is Attached on Tip of Rear Speed Sensor RH; DTC C1239/39: Foreign Object is Attached on Tip of Rear Speed Sensor LH; DTC C1273/73: Low Output Signal of Rear Speed Sensor RH (Test Mode DTC); DTC C1274/74: Low Output Signal of Rear Speed Sensor LH (Test Mode DTC); DTC C1277/77: Abnormal Change in Output Signal of Rear Speed Sensor RH (Test Mode DTC); DTC C1278/78: Abnormal Change in Output Signal of Rear Speed Sensor LH (Test Mode DTC)
	Check the ABS & TRACTION actuator assembly using the Techstream (Check ABS & TRACTION actuator assembly operation using the Active Test function.) If abnormal, check the hydraulic circuit for leaks	Refer to ON-VEHICLE INSPECTION
	If the symptoms still occur even after the above circuits in suspected areas are inspected and proved to be normal, replace the ABS & TRACTION actuator assembly (skid control ECU)	Refer to REMOVAL
ABS, BA and/or EBD does not operate efficiently	Check for DTCs again and make sure that the normal system code is output.	Refer to DTC CHECK / CLEAR
	Front speed sensor circuit	Refer to DTC C0200/31: Right Front Wheel Speed Sensor Signal Malfunction; DTC C0205/32: Left Front Wheel Speed Sensor Signal; DTC C1235/35: Foreign Object is Attached on Tip of Front Speed Sensor RH; DTC C1236/36: Foreign Object is Attached on Tip of Front Speed Sensor LH; DTC C1271/71: Low Output Signal of Front Speed Sensor RH (Test Mode DTC); DTC C1272/72: Low Output Signal of Front Speed Sensor LH (Test Mode DTC); DTC C1275/75: Abnormal Change in Output Signal of Front Speed Sensor RH (Test Mode DTC); DTC C1276/76: Abnormal Change in Output Signal of Front Speed Sensor LH (Test Mode DTC)
	Rear speed sensor circuit	Refer to DTC C0210/33: Right Rear Wheel Speed Sensor Signal Malfunction; DTC C0215/34: Left Rear Wheel Speed Sensor Signal; DTC C1238/38: Foreign Object is Attached on Tip of Rear Speed Sensor RH; DTC C1239/39: Foreign Object is Attached on Tip of Rear Speed Sensor LH; DTC C1273/73: Low Output Signal of Rear Speed Sensor RH (Test Mode DTC); DTC C1274/74: Low Output Signal of Rear Speed Sensor LH (Test Mode DTC); DTC C1277/77: Abnormal Change in Output Signal of Rear Speed Sensor RH (Test Mode DTC); DTC C1278/78: Abnormal Change in Output Signal of Rear Speed Sensor LH (Test Mode DTC)
	Stop light switch circuit	Refer to DTC C1249/49: Open in Stop Light Switch Circuit
	Check the ABS & TRACTION actuator assembly using the Techstream (Check ABS & TRACTION actuator assembly operation using the Active Test function.) If abnormal, check the hydraulic circuit for leaks	Refer to ON-VEHICLE INSPECTION
	If the symptoms still occur even after the above circuits in suspected areas are inspected and proved to be normal, replace the ABS & TRACTION actuator assembly (skid control ECU)	Refer to REMOVAL
VSC and/or TRAC does not operate	Check for DTCs again and make sure that the normal system code is output.	Refer to DTC CHECK / CLEAR
	IG power source circuit and ground circuit	Refer to DTC C1241/41: Low Battery Positive Voltage or Abnormally High Battery Positive Voltage
	Check the hydraulic circuit for leakage	-
	Front speed sensor circuit	Refer to DTC C0200/31: Right Front Wheel Speed Sensor Signal Malfunction; DTC C0205/32: Left Front Wheel Speed Sensor Signal; DTC C1235/35: Foreign Object is Attached on Tip of Front Speed Sensor RH; DTC C1236/36: Foreign Object is Attached on Tip of Front Speed Sensor LH; DTC C1271/71: Low Output Signal of Front Speed Sensor RH (Test Mode DTC); DTC C1272/72: Low Output Signal of Front Speed Sensor LH (Test Mode DTC); DTC C1275/75: Abnormal Change in Output Signal of Front Speed Sensor RH (Test Mode DTC); DTC C1276/76: Abnormal Change in Output Signal of Front Speed Sensor LH (Test Mode DTC)
	Rear speed sensor circuit	Refer to DTC C0210/33: Right Rear Wheel Speed Sensor Signal Malfunction; DTC C0215/34: Left Rear Wheel Speed Sensor Signal; DTC C1238/38: Foreign Object is Attached on Tip of Rear Speed Sensor RH; DTC C1239/39: Foreign Object is Attached on Tip of Rear Speed Sensor LH; DTC C1273/73: Low Output Signal of Rear Speed Sensor RH (Test Mode DTC); DTC C1274/74: Low Output Signal of Rear Speed Sensor LH (Test Mode DTC); DTC C1277/77: Abnormal Change in Output Signal of Rear Speed Sensor RH (Test Mode DTC); DTC C1278/78: Abnormal Change in Output Signal of Rear Speed Sensor LH (Test Mode DTC)
	Yaw rate and acceleration sensor circuit (Calibration Malfunction)	Refer to DTC C1210/36: Zero Point Calibration of Yaw Rate Sensor Undone; DTC C1336/39: Zero Point Calibration of Acceleration Sensor Undone
	Yaw rate and acceleration sensor circuit (Circuit Malfunction)	Refer to DTC C1232/32: Stuck in Acceleration Sensor; DTC C0371/71: Yaw Rate Sensor (Test Mode DTC); DTC C1234/34: Yaw Rate Sensor Malfunction; DTC C1243/43: Acceleration Sensor Stuck Malfunction; DTC C1244/44: Open or Short in Acceleration Sensor Circuit; DTC C1245/45: Acceleration Sensor Output Malfunction; DTC C1279/79: Acceleration Sensor Output Voltage Malfunction (Test Mode DTC); DTC C1381/97: Acceleration Sensor Power Supply Voltage Malfunction
	Steering angle sensor circuit	Refer to DTC C1231/31: Steering Angle Sensor Circuit Malfunction
	If the symptoms still occur even after the above circuits in suspected areas are inspected and proved to be normal, replace the ABS & TRACTION actuator assembly (skid control ECU)	Refer to REMOVAL
ABS sensor DTC check cannot be done	Check for DTCs again and make sure that the normal system code is output.	Refer to DTC CHECK / CLEAR
	TC and CG terminal circuit	Refer to TC and CG Terminal Circuit
	If the symptoms still occur even after the above circuits in suspected areas are inspected and proved to be normal, replace the ABS & TRACTION actuator assembly (skid control ECU)	Refer to REMOVAL
VSC sensor DTC check cannot be done	Check the DTC again and make sure that the normal system code is output	Refer to DTC CHECK / CLEAR
	TC and CG terminal circuit	Refer to TC and CG Terminal Circuit
	If the symptoms still occur even after the above circuits in suspected areas are inspected and proved to be normal, replace the ABS & TRACTION actuator assembly (skid control ECU)	Refer to REMOVAL
Sensor check cannot be done	TS and CG terminal circuit	Refer to TS and CG Terminal Circuit
Sensor check cannot be done	ABS & TRACTION actuator assembly (skid control ECU)	Refer to REMOVAL
ABS warning light abnormal (Remains on)	ABS warning light circuit	Refer to ABS Warning Light Remains ON
ABS warning light abnormal (Remains on)	ABS & TRACTION actuator assembly (skid control ECU)	Refer to REMOVAL
ABS warning light abnormal (Does not come on)	ABS warning light circuit	Refer to ABS Warning Light does not Come ON
ABS warning light abnormal (Does not come on)	ABS & TRACTION actuator assembly (skid control ECU)	Refer to REMOVAL
BRAKE warning light abnormal (Remains on)	BRAKE warning light circuit	Refer to Brake Warning Light Remains ON
BRAKE warning light abnormal (Remains on)	ABS & TRACTION actuator assembly (skid control ECU)	Refer to REMOVAL
BRAKE warning light abnormal (Does not come on)	BRAKE warning light circuit	Refer to Brake Warning Light does not Come ON
BRAKE warning light abnormal (Does not come on)	ABS & TRACTION actuator assembly (skid control ECU)	Refer to REMOVAL
TRAC OFF indicator light abnormal (Remains on)	TRAC OFF indicator light circuit	Refer to TRAC OFF Indicator Light Remains ON
TRAC OFF indicator light abnormal (Remains on)	ABS & TRACTION actuator assembly (skid control ECU)	Refer to REMOVAL
TRAC OFF indicator light abnormal (Does not come on)	TRAC OFF indicator light circuit	Refer to TRAC OFF Indicator Light does not Come ON
TRAC OFF indicator light abnormal (Does not come on)	ABS & TRACTION actuator assembly (skid control ECU)	Refer to REMOVAL
VSC OFF indicator light abnormal (Remains on)	VSC OFF indicator light circuit	Refer to VSC OFF Indicator Light Remains ON
VSC OFF indicator light abnormal (Remains on)	ABS & TRACTION actuator assembly (skid control ECU)	Refer to REMOVAL
VSC OFF indicator light abnormal (Does not come on)	VSC OFF indicator light circuit	Refer to VSC OFF Indicator Light does not Come ON
VSC OFF indicator light abnormal (Does not come on)	ABS & TRACTION actuator assembly (skid control ECU)	Refer to REMOVAL
SLIP indicator light abnormal (Remains on)	SLIP indicator light circuit	Refer to Slip Indicator Light Remains ON
SLIP indicator light abnormal (Remains on)	ABS & TRACTION actuator assembly (skid control ECU)	Refer to REMOVAL
SLIP indicator light abnormal (Does not come on)	SLIP indicator light circuit	Refer to Slip Indicator Light does not Come ON
SLIP indicator light abnormal (Does not come on)	ABS & TRACTION actuator assembly (skid control ECU)	Refer to REMOVAL
Meter buzzer abnormal	VSC buzzer circuit	Refer to VSC Buzzer Circuit
Meter buzzer abnormal	ABS & TRACTION actuator assembly (skid control ECU)	Refer to REMOVAL