Toyota Camry (XV70): Right Rear Wheel Speed Sensor Circuit Voltage Out of Range (C05121C)

Toyota Camry Repair Manual XV70 (2018-2024) / Brake / Brake Control / Dynamic Control Systems / Vehicle Stability Control System (w/ Electric Parking Brake System) / Right Rear Wheel Speed Sensor Circuit Voltage Out of Range (C05121C)

DESCRIPTION

Refer to DTC C051212

Click here

DTC No.	Detection Item	DTC Detection Condition	Trouble Area
C05121C	Right Rear Wheel Speed Sensor Circuit Voltage Out of Range	When the vehicle is being driven in a straight line at a speed of 20 km/h (12 mph) or more and VSC/TRAC has permission to control vehicle braking, one of the following conditions is met when the difference between the highest wheel speed and the lowest wheel speed is 6% or more1 for between 9 and 72 seconds or more (period changes depending on vehicle conditions): When the difference between the highest wheel speed and the second highest wheel speed is 5 km/h (3 mph) or more, the wheel speed is high compared to other speed sensors. The value of the wheel speed is continuously the slowest. When the wheel speed is less than 5 km/h (3 mph). When the vehicle speed is less than 100 km/h (62 mph), one of the following conditions is met when the difference between the highest wheel speed and the lowest wheel speed is 6 km/h (4 mph) or more2 for between 9 and 72 seconds or more (period changes depending on vehicle conditions): When the difference between the highest wheel speed and the second highest wheel speed is 5 km/h (3 mph) or more, the wheel speed is high compared to other speed sensors. The value of the wheel speed is continuously the slowest. When the wheel speed is less than 5 km/h (3 mph). When the vehicle speed is 100 km/h (62 mph) or more, one of the following conditions is met when the difference between the highest wheel speed and the lowest wheel speed is 6% or more*1 for between 9 and 72 seconds or more (period changes depending on vehicle conditions): When the difference between the highest wheel speed and the second highest wheel speed is 5 km/h (3 mph) or more, the wheel speed is high compared to other speed sensors. The value of the wheel speed is continuously the slowest. When the wheel speed is less than 5 km/h (3 mph).	Rear speed sensor RH (rear axle hub and bearing assembly RH)3 Rear speed sensor RH4 Rear speed sensor rotor RH (rear axle hub and bearing assembly RH) Speed sensor installation Tire wear Tire pressure Tire and wheel size

*1: When more than 1 wheel has a wheel speed of less than 5 km/h (3 mph), a difference of 15 % is permitted.

*2: When more than 1 wheel has a wheel speed of less than 5 km/h (3 mph), a difference of 16 km/h (10 mph) is permitted.

*3: for 2WD

*4: for AWD

DTC Detection Conditions: C05121C

		Vehicle Condition
		Pattern 1	Pattern 2	Pattern 3	Pattern 4	Pattern 5	Pattern 6
Diagnosis Condition	The vehicle is being driven in a straight line at a speed of 20 km/h (12 mph) or more and VSC/TRAC has permission to control vehicle braking.	○	○	○	-	-	-
Diagnosis Condition	The vehicle speed is less than 100 km/h (62 mph).	-	-	-	○	○	○
Malfunction Status	When the difference between the highest wheel speed and the lowest wheel speed is 6% or more*1 and the difference between the highest wheel speed and the second highest wheel speed is 5 km/h (3 mph) or more, the wheel speed is high compared to other speed sensors.	○	-	-	-	-	-
	When the difference between the highest wheel speed and the lowest wheel speed is 6% or more*1 and the value of the wheel speed is continuously the slowest.	-	○	-	-	-	-
	When the difference between the highest wheel speed and the lowest wheel speed is 6% or more*1 and the wheel speed is less than 5 km/h (3 mph).	-	-	○	-	-	-
	When the difference between the highest wheel speed and the lowest wheel speed is 6 km/h (4 mph) or more*2 and the difference between the highest wheel speed and the second highest wheel speed is 5 km/h (3 mph) or more, the wheel speed is high compared to other speed sensors.	-	-	-	○	-	-
	When the difference between the highest wheel speed and the lowest wheel speed is 6 km/h (4 mph) or more*2 and the value of the wheel speed is continuously the slowest.	-	-	-	-	○	-
	When the difference between the highest wheel speed and the lowest wheel speed is 6 km/h (4 mph) or more*2 and the wheel speed is less than 5 km/h (3 mph).	-	-	-	-	-	○
Detection Time		Between 9 and 72 seconds or more (period changes depending on vehicle conditions).	Between 9 and 72 seconds or more (period changes depending on vehicle conditions).	Between 9 and 72 seconds or more (period changes depending on vehicle conditions).	Between 9 and 72 seconds or more (period changes depending on vehicle conditions).	Between 9 and 72 seconds or more (period changes depending on vehicle conditions).	Between 9 and 72 seconds or more (period changes depending on vehicle conditions).
Number of Trips		1 trip	1 trip	1 trip	1 trip	1 trip	1 trip

*1: When more than 1 wheel has a wheel speed of less than 5 km/h (3 mph), a difference of 15% is permitted.

*2: When more than 1 wheel has a wheel speed of less than 5 km/h (3 mph), a difference of 16 km/h (10 mph) is permitted.

HINT:

DTC will be output when conditions for either of the patterns in the table above are met.

DTC Detection Conditions: C05121C

		Vehicle Condition
		Pattern 7	Pattern 8	Pattern 9
Diagnosis Condition	The vehicle speed is 100 km/h (62 mph) or more.	○	○	○
Malfunction Status	When the difference between the highest wheel speed and the lowest wheel speed is 6% or more*1 and the difference between the highest wheel speed and the second highest wheel speed is 5 km/h (3 mph) or more, the wheel speed is high compared to other speed sensors.	○	-	-
	When the difference between the highest wheel speed and the lowest wheel speed is 6% or more*1 and the value of the wheel speed is continuously the slowest.	-	○	-
	When the difference between the highest wheel speed and the lowest wheel speed is 6% or more*1 and the wheel speed is less than 5 km/h (3 mph).	-	-	○
Detection Time		Between 9 and 72 seconds or more (period changes depending on vehicle conditions).	Between 9 and 72 seconds or more (period changes depending on vehicle conditions).	Between 9 and 72 seconds or more (period changes depending on vehicle conditions).
Number of Trips		1 trip	1 trip	1 trip

*1: When more than 1 wheel has a wheel speed of less than 5 km/h (3 mph), a difference of 15% is permitted.

HINT:

DTC will be output when conditions for either of the patterns in the table above are met.

CAUTION / NOTICE / HINT

NOTICE:

After replacing or removing and installing a speed sensor, perform Dealer Mode (Signal Check) inspection to confirm that the speed sensors are operating correctly.
Click here
After replacing or removing and installing a speed sensor rotor, perform Dealer Mode (Signal Check) inspection to confirm that the speed sensors are operating correctly.
Click here

DTC precaution

Click here

Procedure to clear warning lights (When not clearing DTCs)

Procedure
Repair or replacement. Turn the ignition switch to ON. Drive the vehicle at 11 km/h (7 mph) or more for 1 second or more to clear the warning lights.

PROCEDURE

PRE-CHECK

(a) Check that all 4 tires are of correct size, are inflated to the correct pressure, and do not show excessive signs of wear.

Click here

HINT:

If a tire is deformed or an incorrectly sized tire or wheel is installed, this DTC may be stored.

2.	CHECK FREEZE FRAME DATA (WHEEL SPEED)

(a) Connect the Techstream to the DLC3.

(b) Turn the ignition switch to ON.

(d) Select a DTC to display the Freeze Frame Data.

(e) Read the freeze frame data of DTC C05121C.

Chassis > Brake

Tester Display	Measurement Item	Range	Normal Condition	Diagnostic Note
FR Wheel Speed	Front wheel speed sensor RH reading	Min.: 0.0 km/h (0 mph), Max.: 6553.5 km/h (4072 mph)	Vehicle stopped: 0.0 km/h (0.0 mph)	When driving at constant speed: No large fluctuations
FL Wheel Speed	Front wheel speed sensor LH reading	Min.: 0.0 km/h (0 mph), Max.: 6553.5 km/h (4072 mph)	Vehicle stopped: 0.0 km/h (0.0 mph)	When driving at constant speed: No large fluctuations
RR Wheel Speed	Rear wheel speed sensor RH reading	Min.: 0.0 km/h (0 mph), Max.: 6553.5 km/h (4072 mph)	Vehicle stopped: 0.0 km/h (0.0 mph)	When driving at constant speed: No large fluctuations
RL Wheel Speed	Rear wheel speed sensor LH reading	Min.: 0.0 km/h (0 mph), Max.: 6553.5 km/h (4072 mph)	Vehicle stopped: 0.0 km/h (0.0 mph)	When driving at constant speed: No large fluctuations

Chassis > Brake > DTC(C05121C) > Freeze Frame Data

Tester Display
FR Wheel Speed
FL Wheel Speed
RR Wheel Speed
RL Wheel Speed

Result	Proceed to
The value of RR Wheel Speed is more than all other values.	A
The value of RR Wheel Speed is less than all other values.	B
The value of RR Wheel Speed is less than 5 km/h (3 mph).	C

GO TO STEP 4

GO TO STEP 7

3.	READ VALUE USING TECHSTREAM (WHEEL SPEED)

(a) Connect the Techstream to the DLC3.

(b) Turn the ignition switch to ON.

Chassis > Brake > Data List

Tester Display	Measurement Item	Range	Normal Condition	Diagnostic Note
FR Wheel Speed	Front wheel speed sensor RH reading	Min.: 0.0 km/h (0 mph), Max.: 6553.5 km/h (4072 mph)	Vehicle stopped: 0.0 km/h (0.0 mph)	When driving at constant speed: No large fluctuations
FL Wheel Speed	Front wheel speed sensor LH reading	Min.: 0.0 km/h (0 mph), Max.: 6553.5 km/h (4072 mph)	Vehicle stopped: 0.0 km/h (0.0 mph)	When driving at constant speed: No large fluctuations
RR Wheel Speed	Rear wheel speed sensor RH reading	Min.: 0.0 km/h (0 mph), Max.: 6553.5 km/h (4072 mph)	Vehicle stopped: 0.0 km/h (0.0 mph)	When driving at constant speed: No large fluctuations
RL Wheel Speed	Rear wheel speed sensor LH reading	Min.: 0.0 km/h (0 mph), Max.: 6553.5 km/h (4072 mph)	Vehicle stopped: 0.0 km/h (0.0 mph)	When driving at constant speed: No large fluctuations

Chassis > Brake > Data List

Tester Display
FR Wheel Speed
FL Wheel Speed
RR Wheel Speed
RL Wheel Speed

(d) Start the engine.

(e) Perform a road test under the same malfunction conditions recreated based on the Freeze Frame Data or customer problem analysis.

(f) Check the value of Wheel Speed.

OK:

The difference between the value of RR Wheel Speed and all other values is less than 6%.

HINT:

If the result of the road test is within the specified range, it is possible that this DTC was stored due to a particular situation such as wheelspin.

Result	Proceed to
OK	A
NG (for 2WD)	B
NG (for AWD)	C

USE SIMULATION METHOD TO CHECK

REPLACE REAR AXLE HUB AND BEARING ASSEMBLY RH

REPLACE REAR SPEED SENSOR RH

4.	READ VALUE USING TECHSTREAM (WHEEL SPEED)

(a) Connect the Techstream to the DLC3.

(b) Turn the ignition switch to ON.

Chassis > Brake > Data List

Tester Display	Measurement Item	Range	Normal Condition	Diagnostic Note
FR Wheel Speed	Front wheel speed sensor RH reading	Min.: 0.0 km/h (0 mph), Max.: 6553.5 km/h (4072 mph)	Vehicle stopped: 0.0 km/h (0.0 mph)	When driving at constant speed: No large fluctuations
FL Wheel Speed	Front wheel speed sensor LH reading	Min.: 0.0 km/h (0 mph), Max.: 6553.5 km/h (4072 mph)	Vehicle stopped: 0.0 km/h (0.0 mph)	When driving at constant speed: No large fluctuations
RR Wheel Speed	Rear wheel speed sensor RH reading	Min.: 0.0 km/h (0 mph), Max.: 6553.5 km/h (4072 mph)	Vehicle stopped: 0.0 km/h (0.0 mph)	When driving at constant speed: No large fluctuations
RL Wheel Speed	Rear wheel speed sensor LH reading	Min.: 0.0 km/h (0 mph), Max.: 6553.5 km/h (4072 mph)	Vehicle stopped: 0.0 km/h (0.0 mph)	When driving at constant speed: No large fluctuations

Chassis > Brake > Data List

Tester Display
FR Wheel Speed
FL Wheel Speed
RR Wheel Speed
RL Wheel Speed

(d) Start the engine.

(e) Perform a road test under the same malfunction conditions recreated based on the Freeze Frame Data or customer problem analysis.

(f) Check the value of Wheel Speed.

OK:

The difference between the value of RR Wheel Speed and all other values is less than 6%.

HINT:

If the result of the road test is within the specified range, it is possible that this DTC was stored due to a particular situation such as brake drag.

Result	Proceed to
OK	A
NG (for 2WD)	B
NG (for AWD)	C

USE SIMULATION METHOD TO CHECK

REPLACE REAR AXLE HUB AND BEARING ASSEMBLY RH

5.	CHECK REAR SPEED SENSOR RH INSTALLATION

(a) Check the rear speed sensor RH installation.

OK:

There is no clearance between the rear speed sensor RH and the rear axle carrier RH.

The installation bolt is tightened properly.

Torque

8.5 N*m (87 kgf*cm, 75 in.*lbf)

*1	Rear Speed Sensor RH
*a	Correct
*b	Incorrect
*c	8.5 N*m
*d	No clearance

REINSTALL OR REPLACE REAR SPEED SENSOR RH

6.	CHECK REAR SPEED SENSOR ROTOR RH (CHECK FOR FOREIGN MATTER)

(a) Remove the component with the rear speed sensor rotor RH.

Click here

(b) Check the rear speed sensor rotor RH.

OK:

The rear speed sensor rotor RH is free of scratches, oil, and foreign matter.

NOTICE:

If there is oil or foreign matter on the rear speed sensor rotor RH, clean the rear speed sensor rotor RH.
Do not use parts cleaner when cleaning the rear speed sensor rotor RH.
If the rear speed sensor rotor RH is damaged, replace the rear axle hub and bearing assembly RH with a new one.

Result	Proceed to
OK	A
NG (The rear speed sensor rotor RH is damaged.)	B
NG (There is foreign matter on the rear speed sensor rotor RH.)	C

REPLACE REAR SPEED SENSOR RH

REPLACE REAR AXLE HUB AND BEARING ASSEMBLY RH

CLEAN REAR SPEED SENSOR ROTOR RH

7.	READ VALUE USING TECHSTREAM (RR WHEEL SPEED)

(a) Connect the Techstream to the DLC3.

(b) Turn the ignition switch to ON.

Chassis > Brake > Data List

Tester Display	Measurement Item	Range	Normal Condition	Diagnostic Note
RR Wheel Speed	Rear wheel speed sensor RH reading	Min.: 0.0 km/h (0 mph), Max.: 6553.5 km/h (4072 mph)	Vehicle stopped: 0.0 km/h (0.0 mph)	When driving at constant speed: No large fluctuations

Chassis > Brake > Data List

Tester Display
RR Wheel Speed

(d) Start the engine.

(e) Perform a road test under the same malfunction conditions recreated based on the Freeze Frame Data or customer problem analysis.

(f) Check the value of RR Wheel Speed.

OK:

The value of RR Wheel Speed is 5 km/h (3 mph) or more.

HINT:

If the result of the road test is within the specified range, it is possible that this DTC was stored due to a particular situation such as wheelspin, brake drag or wheel lockup.

When a DTC is stored during operation of ABS or TRAC, the system also stores vehicle control history (RoB) that can be guessed the vehicle conditions.

Click here

Result	Proceed to
OK	A
NG (for 2WD)	B
NG (for AWD)	C

USE SIMULATION METHOD TO CHECK

REPLACE REAR AXLE HUB AND BEARING ASSEMBLY RH

8.	CHECK REAR SPEED SENSOR RH INSTALLATION

(a) Check the rear speed sensor RH installation.

OK:

There is no clearance between the rear speed sensor RH and the rear axle carrier RH.

The installation bolt is tightened properly.

Torque

8.5 N*m (87 kgf*cm, 75 in.*lbf)

*1	Rear Speed Sensor RH
*a	Correct
*b	Incorrect
*c	8.5 N*m
*d	No clearance

REPLACE REAR SPEED SENSOR RH

REINSTALL OR REPLACE REAR SPEED SENSOR RH

SEE MORE:

Operation Check

OPERATION CHECK TOYOTA ENTUNE APP SUITE CONNECT RESET PROCEDURE (a) Duplicate the problem symptom. (b) Check for DTCs and repair the systems for which any DTCs are output. Click here (c) Check cellular phone compatibility. (1) Check if the cellular phone/vehicle is compatible (Refer to ht

Speaker Output Short (B15C3)

DESCRIPTION This DTC is stored when a malfunction occurs in the speakers. DTC No. Detection Item DTC Detection Condition Trouble Area B15C3 Speaker Output Short A short is detected in the speaker output circuit Harness or connector Speaker Radio

Toyota Camry (XV70): Right Rear Wheel Speed Sensor Circuit Voltage Out of Range (C05121C)

READ NEXT:

Right Rear Wheel Speed Sensor Circuit Intermittent (C05121F)

Right Rear Wheel Speed Sensor Signal Stuck Low (C051223)

Right Rear Wheel Speed Sensor Signal Stuck High (C051224)

SEE MORE:

Operation Check

Speaker Output Short (B15C3)