- 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.
| Last Modified: 07-31-2024 | 6.11:8.1.0 | Doc ID: RM100000001HBKU |
| Model Year Start: 2020 | Model: GR Corolla | Prod Date Range: [01/2019 - 09/2022] |
| Title: BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for Gasoline Model without Electric Parking Brake System): C05121C; Right Rear Wheel Speed Sensor Circuit Voltage Out of Range; 2020 - 2022 MY Corolla Corolla Hatchback GR Corolla [01/2019 - 09/2022] | ||
|
DTC |
C05121C |
Right Rear Wheel Speed Sensor Circuit Voltage Out of Range |
DESCRIPTION
Refer to DTC C051212
Click here
![2020 - 2022 MY Corolla Corolla Hatchback GR Corolla [01/2019 - 09/2022]; BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for Gasoline Model without Electric Parking Brake System): C051212; Right Rear Wheel Speed Sensor Circuit Short to Battery](/t3Portal/stylegraphics/info.gif)
|
DTC No. |
Detection Item |
DTC Detection Condition |
Trouble Area |
|---|---|---|---|
|
C05121C |
Right Rear Wheel Speed Sensor Circuit Voltage Out of Range |
|
|
*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.
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. |
○ |
○ |
○ |
- |
- |
- |
|
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
PROCEDURE
|
1. |
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.
(c) Enter the following menus: Chassis / Brake / Trouble Codes.
(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 |
| B |
|
| C |
|
|
|
3. |
READ VALUE USING TECHSTREAM (WHEEL SPEED) |
(a) Connect the Techstream to the DLC3.
(b) Turn the ignition switch to ON.
(c) Enter the following menus: Chassis / Brake / Data List.
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.
| OK |
|
| NG |
|
|
4. |
READ VALUE USING TECHSTREAM (WHEEL SPEED) |
(a) Connect the Techstream to the DLC3.
(b) Turn the ignition switch to ON.
(c) Enter the following menus: Chassis / Brake / Data List.
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.
| OK |
|
| NG |
|
|
5. |
READ VALUE USING TECHSTREAM (RR WHEEL SPEED) |
(a) Connect the Techstream to the DLC3.
(b) Turn the ignition switch to ON.
(c) Enter the following menus: Chassis / Brake / Data List.
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 that can be guessed the vehicle conditions.
Click here
| OK |
|
| NG |
|
|
|