Problem Symptoms Table

WARNING: This page is about a different car, the 2008 Toyota RAV4. However, it is still accessible from the selected car via links, so may be relevant.

HINT:

Use the table below to help determine the cause of the problem symptom. The potential causes of the symptoms are listed in order of probability in the "Suspected area" column of the table. Check each symptom 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.

Fig 1: Identifying Abnormal Speed Sensor Output Frequency Chart
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NOTE: When replacing the ABS and TRACTION actuator or sensor, turn the ignition switch OFF.

Vehicle stability control system

SYMPTOM REFERENCE

Symptom	Suspected Area	See
ABS, BA and/or EBD does not operate	1. Check for DTCs again and make sure that normal system code displayed	DTC CHECK / CLEAR
	2. IG power source circuit	DTC C1241/41 LOW BATTERY POSITIVE VOLTAGE
	3. Front speed sensor circuit	DTC C0200/31 RIGHT FRONT WHEEL SPEED SENSOR SIGNAL; 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)
	4. Rear speed sensor circuit	DTC C0210/33 RIGHT REAR WHEEL SPEED SENSOR SIGNAL; 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)
	5. Check ABS and TRACTION actuator using Techstream (Check ABS and TRACTION actuator operation using Active Test function). If abnormal, check hydraulic circuit for leakage.	ABS AND TRACTION ACTUATOR
	6. If symptoms still occur even after above circuits in suspected areas inspected and proved to be normal, replace ABS and TRACTION actuator (skid control ECU)	ABS AND TRACTION ACTUATOR
ABS, BA and/or EBD does not operate efficiently	1. Check for DTCs again and make sure that normal system code displayed	DTC CHECK / CLEAR
	2. Front speed sensor circuit	DTC C0200/31 RIGHT FRONT WHEEL SPEED SENSOR SIGNAL; 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)
	3. Rear speed sensor circuit	DTC C0210/33 RIGHT REAR WHEEL SPEED SENSOR SIGNAL; 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)
	4. Stop light switch circuit	DTC C1249/49 OPEN IN STOP LIGHT SWITCH CIRCUIT
	5. Check ABS and TRACTION actuator using Techstream (Check ABS and TRACTION actuator operation using Active Test function). If abnormal, check hydraulic circuit for leakage.	ABS AND TRACTION ACTUATOR
	6. If symptoms still occur even after above circuits in suspected areas inspected and proved to be normal, replace ABS and TRACTION actuator (skid control ECU)	ABS AND TRACTION ACTUATOR
VSC and/or TRAC does not operate	1. Check for DTCs again and make sure that normal system code displayed	DTC CHECK / CLEAR
	2. IG power source circuit	DTC C1241/41 LOW BATTERY POSITIVE VOLTAGE
	3. Check hydraulic circuit for leakage	-
	4. Front speed sensor circuit	DTC C0200/31 RIGHT FRONT WHEEL SPEED SENSOR SIGNAL; 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)
	5. Rear speed sensor circuit	DTC C0210/33 RIGHT REAR WHEEL SPEED SENSOR SIGNAL; 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)
	6. Yaw rate sensor circuit	DTC C1232/32 STUCK IN DECELERATION 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 DECELERATION SENSOR CIRCUIT; DTC C1245/45 ACCELERATION SENSOR OUTPUT MALFUNCTION; DTC C1279/79 DECELERATION SENSOR OUTPUT VOLTAGE MALFUNCTION (TEST MODE DTC); DTC C1381/97 ACCELERATION SENSOR POWER SUPPLY VOLTAGE MALFUNCTION
	7. Steering angle sensor circuit	DTC C1231/31 STEERING ANGLE SENSOR CIRCUIT MALFUNCTION
	8. If symptoms still occur even after above circuits in suspected areas inspected and proved to be normal, replace ABS and TRACTION actuator (skid control ECU)	ABS AND TRACTION ACTUATOR
Sensor signal check cannot be performed	1. TS and CG terminal circuit	TS AND CG TERMINAL CIRCUIT
Sensor signal check cannot be performed	2. ABS and TRACTION actuator (skid control ECU)	ABS AND TRACTION ACTUATOR
DTC check cannot be performed	1. Check for DTCs again and make sure that normal system code displayed	DTC CHECK / CLEAR
	2. TC and CG terminal circuit	TC AND CG TERMINAL CIRCUIT
	3. If symptoms still occur even after above circuits in suspected areas inspected and proved to be normal, replace ABS and TRACTION actuator (skid control ECU)	ABS AND TRACTION ACTUATOR
ABS warning light abnormal (Remains on)	1. ABS warning light circuit	ABS WARNING LIGHT REMAINS ON
ABS warning light abnormal (Remains on)	2. ABS and TRACTION actuator (skid control ECU)	ABS AND TRACTION ACTUATOR
ABS warning light abnormal (Does not come on)	1. ABS warning light circuit	ABS WARNING LIGHT DOES NOT COME ON
ABS warning light abnormal (Does not come on)	2. ABS and TRACTION actuator (skid control ECU)	ABS AND TRACTION ACTUATOR
VSC warning light abnormal (Remains on)	1. VSC warning light circuit	VSC WARNING LIGHT REMAINS ON
VSC warning light abnormal (Remains on)	2. ABS and TRACTION actuator (skid control ECU)	ABS AND TRACTION ACTUATOR
VSC warning light abnormal (Does not come on)	1. VSC warning light circuit	VSC WARNING LIGHT DOES NOT COME ON
VSC warning light abnormal (Does not come on)	2. ABS and TRACTION actuator (skid control ECU)	ABS AND TRACTION ACTUATOR
BRAKE warning light abnormal (Remains on)	1. BRAKE warning light circuit	BRAKE WARNING LIGHT REMAINS ON
BRAKE warning light abnormal (Remains on)	2. ABS and TRACTION actuator (skid control ECU)	ABS AND TRACTION ACTUATOR
BRAKE warning light abnormal (Does not come on)	1. BRAKE warning light circuit	BRAKE WARNING LIGHT DOES NOT COME ON
BRAKE warning light abnormal (Does not come on)	2. ABS and TRACTION actuator (skid control ECU)	ABS AND TRACTION ACTUATOR
SLIP indicator light abnormal (Remains on)	1. SLIP indicator light circuit	SLIP INDICATOR LIGHT REMAINS ON
SLIP indicator light abnormal (Remains on)	2. ABS and TRACTION actuator (skid control ECU)	ABS AND TRACTION ACTUATOR
SLIP indicator light abnormal (Does not come on)	1. SLIP indicator light circuit	SLIP INDICATOR LIGHT DOES NOT COME ON
SLIP indicator light abnormal (Does not come on)	2. ABS and TRACTION actuator (skid control ECU)	ABS AND TRACTION ACTUATOR
Skid control buzzer abnormal	1. Skid control buzzer circuit	SKID CONTROL BUZZER CIRCUIT
Skid control buzzer abnormal	2. ABS and TRACTION actuator (skid control ECU)	ABS AND TRACTION ACTUATOR
Downhill assist control does not operated	1. Check for DTCs again and make sure that normal system code displayed	DTC CHECK / CLEAR
	2. Downhill assist control switch circuit	DTC C1379/74 DOWNHILL ASSIST CONTROL OPERATION SWITCH (TEST MODE DTC)
	3. Downhill assist control indicator light circuit	DOWNHILL ASSIST CONTROL INDICATOR LIGHT DOES NOT COME ON
	4. If symptoms still occur even after above circuits in suspected areas inspected and proved to be normal, replace ABS and TRACTION actuator (skid control ECU)	ABS AND TRACTION ACTUATOR
Downhill assist control indicator light abnormal (Remains on)*1	1- Downhill assist control indicator light circuit	DOWNHILL ASSIST CONTROL INDICATOR LIGHT REMAINS ON
	2. ABS and TRACTION actuator (skid control ECU)	ABS AND TRACTION ACTUATOR
Downhill assist control indicator light abnormal (Does not come on)*1	1. Downhill assist control indicator light circuit	DOWNHILL ASSIST CONTROL INDICATOR LIGHT DOES NOT COME ON
	2. ABS and TRACTION actuator (skid control ECU)	ABS AND TRACTION ACTUATOR
Hill-start assist control does not operate*2	1. ABS and TRACTION actuator (skid control ECU)	ABS AND TRACTION ACTUATOR
AUTO LSD does not operate*3	1. Check for DTCs again and make sure that normal system code displayed	DTC CHECK / CLEAR
	2. AUTO LSD switch circuit	AUTO LSD INDICATOR LIGHT DOES NOT COME ON
	3. AUTO LSD indicator circuit	AUTO LSD INDICATOR LIGHT DOES NOT COME ON
	4. If symptoms still occur even after above circuits in suspected areas inspected and proved to be normal, replace ABS and TRACTION actuator (skid control ECU)	ABS AND TRACTION ACTUATOR
AUTO LSD indicator light abnormal (Remains on)*3	1. AUTO LSD indicator circuit	AUTO LSD INDICATOR LIGHT REMAINS ON
AUTO LSD indicator light abnormal (Remains on)*3	2. ABS and TRACTION actuator (skid control ECU)	ABS AND TRACTION ACTUATOR
AUTO LSD indicator light abnormal (Does not come on)*3	1. AUTO LSD indicator circuit	AUTO LSD INDICATOR LIGHT DOES NOT COME ON
AUTO LSD indicator light abnormal (Does not come on)*3	2. ABS and TRACTION actuator (skid control ECU)	ABS AND TRACTION ACTUATOR
HINT: 1: w/ Downhill assist control 2: w/ Hill-start assist control *3: for 2WD w/ AUTO LSD