Refer to DTC C051212
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | DTC Output from | Priority |
|---|---|---|---|---|---|
| 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/TRC 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 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). ·
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 more*2 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 speed sensor rotor RH ·
Speed sensor installation ·
Tire wear ·
Tire pressure ·
Tire and wheel size |
Brake/EPB | A |
*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 precaution
| Procedure |
|---|
1.
Repair or replacement. 2.
Turn the ignition switch to ON. 3.
Drive the vehicle at 11 km/h (7 mph) or more for 1 second or more to clear the warning lights. |
Check the vehicle specification.
| Result | Proceed to |
|---|---|
| for 2WD | A |
| for AWD | B |
A
B
Check that all 4 tires are of correct size, are inflated to the correct pressure, and do not show excessive signs of wear.
Click hereGeneral>MAINTENANCE>TIRE AND WHEEL>INSPECTION202111,999999,_V1,_112220,_0502516,RM100000001ZAD4,
If a tire is deformed or an incorrectly sized tire or wheel is installed, this DTC may be stored.
| Proceed to |
|---|
| NEXT |
NEXT
Read the freeze frame data of DTC C05121C.
| 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 |
| 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. | C |
5 km/h = 3 mph
A
B
C
Pre-procedure1
Start the engine.
Perform a road test under the same malfunction conditions recreated based on the Freeze Frame Data or customer problem analysis.
Procedure1
Check the value of Wheel Speed.
| 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 |
| Tester Display |
|---|
| FR Wheel Speed |
| FL Wheel Speed |
| RR Wheel Speed |
| RL Wheel Speed |
The difference between the value of RR Wheel Speed and all other values is less than 6%.
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.
The rear speed sensor RH and rear speed sensor rotor RH are incorporated into the rear axle hub and bearing assembly RH.
If the rear speed sensor RH and rear speed sensor rotor RH need to be replaced, replace the rear axle hub and bearing assembly RH.
| Proceed to |
|---|
| OK |
| NG |
Post-procedure1
None
OK
NG
Pre-procedure1
Start the engine.
Perform a road test under the same malfunction conditions recreated based on the Freeze Frame Data or customer problem analysis.
Procedure1
Check the value of Wheel Speed.
| 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 |
| Tester Display |
|---|
| FR Wheel Speed |
| FL Wheel Speed |
| RR Wheel Speed |
| RL Wheel Speed |
The difference between the value of RR Wheel Speed and all other values is less than 6%.
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.
The rear speed sensor RH and rear speed sensor rotor RH are incorporated into the rear axle hub and bearing assembly RH.
If the rear speed sensor RH and rear speed sensor rotor RH need to be replaced, replace the rear axle hub and bearing assembly RH.
| Proceed to |
|---|
| OK |
| NG |
Post-procedure1
None
OK
NG
Pre-procedure1
Start the engine.
Perform a road test under the same malfunction conditions recreated based on the Freeze Frame Data or customer problem analysis.
Procedure1
Check the value of RR Wheel Speed.
| 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 |
| Tester Display |
|---|
| RR Wheel Speed |
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 TRC, the system also stores vehicle control history (RoB) that can be guessed the vehicle conditions.
The rear speed sensor RH and rear speed sensor rotor RH are incorporated into the rear axle hub and bearing assembly RH.
If the rear speed sensor RH and rear speed sensor rotor RH need to be replaced, replace the rear axle hub and bearing assembly RH.
| Result | Proceed to |
|---|---|
| The value of RR Wheel Speed is 5 km/h or more | A |
| None of the above conditions are met | B |
5 km/h = 3 mph
Post-procedure1
None
A
B
Check that all 4 tires are of correct size, are inflated to the correct pressure, and do not show excessive signs of wear.
Click hereGeneral>MAINTENANCE>TIRE AND WHEEL>INSPECTION202111,999999,_V1,_112220,_0502516,RM100000001ZAD4,
If a tire is deformed or an incorrectly sized tire or wheel is installed, this DTC may be stored.
| Proceed to |
|---|
| NEXT |
NEXT
Read the freeze frame data of DTC C05121C.
| 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 |
| 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. | C |
5 km/h = 3 mph
A
B
C
Pre-procedure1
Start the engine.
Perform a road test under the same malfunction conditions recreated based on the Freeze Frame Data or customer problem analysis.
Procedure1
Check the value of Wheel Speed.
| 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 |
| Tester Display |
|---|
| FR Wheel Speed |
| FL Wheel Speed |
| RR Wheel Speed |
| RL Wheel Speed |
The difference between the value of RR Wheel Speed and all other values is less than 6%.
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.
| Proceed to |
|---|
| OK |
| NG |
Post-procedure1
None
OK
NG
Pre-procedure1
Start the engine.
Perform a road test under the same malfunction conditions recreated based on the Freeze Frame Data or customer problem analysis.
Procedure1
Check the value of Wheel Speed.
| 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 |
| Tester Display |
|---|
| FR Wheel Speed |
| FL Wheel Speed |
| RR Wheel Speed |
| RL Wheel Speed |
The difference between the value of RR Wheel Speed and all other values is less than 6%.
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.
| Proceed to |
|---|
| OK |
| NG |
Post-procedure1
None
OK
NG
| *1 | Rear Speed Sensor RH |
| *a | Correct |
| *b | Incorrect |
| *c | 8.5 N*m (87 kgf*cm, 75 in.*lbf) |
| *d | No clearance |
Check the rear speed sensor RH installation.
There is no clearance between the rear speed sensor RH and the rear axle carrier RH.
The installation bolt is tightened properly.
8.5 N*m (87 kgf*cm, 75 in.*lbf)
| Proceed to |
|---|
| OK |
| NG |
OK
NG
Remove the component with the rear speed sensor rotor RH.
Check the rear speed sensor rotor RH.
The rear speed sensor rotor RH is free of scratches, oil, and foreign matter.
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.
The rear speed sensor rotor RH is incorporated into the rear axle hub and bearing assembly RH.
If the rear speed sensor rotor RH need to be replaced, replace the rear axle hub and bearing assembly RH.
| 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 |
A
B
C
Pre-procedure1
Start the engine.
Perform a road test under the same malfunction conditions recreated based on the Freeze Frame Data or customer problem analysis.
Procedure1
Check the value of RR Wheel Speed.
| 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 |
| Tester Display |
|---|
| RR Wheel Speed |
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 TRC, the system also stores vehicle control history (RoB) that can be guessed the vehicle conditions.
| Result | Proceed to |
|---|---|
| The value of RR Wheel Speed is 5 km/h or more | A |
| None of the above conditions are met | B |
5 km/h = 3 mph
Post-procedure1
None
A
B
| *1 | Rear Speed Sensor RH |
| *a | Correct |
| *b | Incorrect |
| *c | 8.5 N*m (87 kgf*cm, 75 in.*lbf) |
| *d | No clearance |
Check the rear speed sensor RH installation.
There is no clearance between the rear speed sensor RH and the rear axle carrier RH.
The installation bolt is tightened properly.
8.5 N*m (87 kgf*cm, 75 in.*lbf)
| Proceed to |
|---|
| OK |
| NG |
OK
NG