DESCRIPTION
Refer to DTC C050C12
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DTC No. | Detection Item | DTC Detection Condition | Trouble Area |
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C050C23 | Left Rear Wheel Speed Sensor Signal Stuck Low |
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*1: for 2WD
*2: for AWD
DTC Detection Conditions: C050C23 Vehicle Condition | ||||
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Pattern 1 | Pattern 2 | Pattern 3 | ||
Diagnosis Condition | The vehicle is driven from 0 km/h to 12 km/h (0 mph to 7 mph). | ○ | - | - |
The vehicle speed reaches 18 km/h (11 mph). | - | ○ | - | |
The vehicle speed and wheel speed are both 43.2 km/h (26.8 mph) or more. | - | - | ○ | |
Malfunction Status | The wheel speed is 1.8 km/h (1.1 mph) or less. | ○ | - | - |
The wheel speed has not exceeded 1.8 km/h (1.1 mph). | - | ○ | - | |
The pulse signal is not detected. | - | - | ○ | |
Detection Time | 0.6 seconds or more. | - | 0.08 seconds or more. | |
Number of Trips | 1 trip | 1 trip | 1 trip |
HINT:
DTC will be output when conditions for either of the patterns in the table above are met.
CAUTION / NOTICE / HINT
NOTICE:
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Procedure to clear warning lights (When not clearing DTCs) Procedure |
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PROCEDURE
1. | CHECK FREEZE FRAME DATA (WHEEL SPEED) |
(a) Connect the Techstream to the DLC3.
(b) Turn the engine switch on (IG).
(c) Enter the following menus: Chassis / Brake/EPB / Trouble Codes.
(d) Select a DTC to display the Freeze Frame Data.
(e) Read the freeze frame data of DTC C050C23.
Chassis > Brake/EPB Tester Display | Measurement Item | Range | Normal Condition | Diagnostic Note |
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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 |
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FR Wheel Speed |
FL Wheel Speed |
RR Wheel Speed |
RL Wheel Speed |
Result | Proceed to |
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The value of RL Wheel Speed is 2 km/h (1 mph) or less when all other values are 12 km/h (7 mph) or more. | A |
The value of RL Wheel Speed is 2 km/h (1 mph) or less when all other values are 43 km/h (27 mph) or more. (for 2WD) | B |
The value of RL Wheel Speed is 2 km/h (1 mph) or less when all other values are 43 km/h (27 mph) or more. (for AWD) | C |
B | REPLACE REAR AXLE HUB AND BEARING ASSEMBLY LH |
C | GO TO STEP 3 |
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2. | READ VALUE USING TECHSTREAM (RL WHEEL SPEED) |
(a) Connect the Techstream to the DLC3.
(b) Turn the engine switch on (IG).
(c) Enter the following menus: Chassis / Brake/EPB / Data List.
Chassis > Brake/EPB > Data List Tester Display | Measurement Item | Range | Normal Condition | Diagnostic Note |
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RL Wheel Speed | Rear wheel speed sensor LH reading | Min.: 0.0 km/h (0.0 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 |
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RL Wheel Speed |
(d) Start the engine and perform a road test.
(e) Check that the value of RL Wheel Speed changes in accordance with vehicle speed when accelerating from 0 km/h to 20 km/h (0 mph to 12 mph).
OK:
The value of RL Wheel Speed changes in accordance with vehicle speed.
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, wheelspin or wheel lockup.
Result | Proceed to |
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OK | A |
NG (for 2WD) | B |
NG (for AWD) | C |
A | USE SIMULATION METHOD TO CHECK |
B | REPLACE REAR AXLE HUB AND BEARING ASSEMBLY LH |
C | GO TO STEP 3 |
3. | CHECK REAR SPEED SENSOR LH INSTALLATION |
(a) Check the rear speed sensor LH installation. OK: There is no clearance between the rear speed sensor LH and the rear axle carrier LH. The installation bolt is tightened properly. Torque 8.5 N*m (87 kgf*cm, 75 in.*lbf) |
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OK | REPLACE REAR SPEED SENSOR LH |
NG | REINSTALL OR REPLACE REAR SPEED SENSOR LH |