DESCRIPTION
Refer to DTC C05061F.
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DTC No. | Detection Item | DTC Detection Condition | Trouble Area |
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C050623 | Right Front Wheel Speed Sensor Signal Stuck Low | Any of the following is detected:
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Vehicle Condition | ||||||
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Pattern 1 | Pattern 2 | Pattern 3 | Pattern 4 | Pattern 5 | ||
Diagnosis Condition | When the +BS terminal voltage is 17.4 V or less at a vehicle speed of 10 km/h (6 mph) or more | ○ | ○ | ○ | ○ | ○ |
Malfunction Status | Output voltage from one of the speed sensors is less than that from the other sensors*2 | ○ | - | - | - | - |
Output voltage from one of the speed sensors is less than that from the other sensors*1 | - | ○ | - | - | - | |
Output from one of the speed sensors is 0 km/h (0 mph) | - | - | ○ | - | - | |
Outputs from both front speed sensors are 0 km/h (0 mph)*2 | - | - | - | ○ | - | |
Outputs from both front speed sensors are 0 km/h (0 mph)*1 | - | - | - | - | ○ | |
Detection Time | 15 seconds or more | 30 seconds or more | 1 second or more | 15 seconds or more | 30 seconds or more | |
Number of Trips | 1 trip | 1 trip | 1 trip | 1 trip | 1 trip |
HINT:
DTC will be output when conditions for any of the patterns in the table above are met.
WIRING DIAGRAM
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CAUTION / NOTICE / HINT
NOTICE:
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PROCEDURE
1. | CHECK FRONT SPEED SENSOR RH INSTALLATION |
(a) Turn the engine switch off. |
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(b) Check the front speed sensor RH installation.
OK:
There is no clearance between the front speed sensor RH and front axle carrier sub-assembly.
The installation bolt is tightened properly.
Torque
8.5 N*m (87 kgf*cm, 75 in.*lbf)
NG | REINSTALL OR REPLACE FRONT SPEED SENSOR RH |
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2. | CHECK FRONT SPEED SENSOR RH (CHECK FOR FOREIGN MATTER) |
(a) Remove the front speed sensor RH.
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(b) Check the front speed sensor RH tip.
OK:
The front speed sensor RH tip is free of scratches, oil, and foreign matter.
NOTICE:
NG | CLEAN OR REPLACE FRONT SPEED SENSOR RH |
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3. | READ VALUE USING TECHSTREAM (FR 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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FR Wheel Speed | Front wheel speed sensor RH 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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FR Wheel Speed |
(d) Start the engine.
(e) Perform a road test.
(f) Check the speed value output from the speed sensor displayed on the Techstream.
HINT:
Factors that affect the indicated vehicle speed include tire size, tire pressure, and tire wear. The speed indicated on the speedometer has an allowable margin of error. This can be tested using a speedometer tester (calibrated chassis dynamometer). For details about testing and the margin of error, see the reference chart.
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OK:
The speed value output from the speed sensor displayed on the Techstream is similar to the speed indicated on the speedometer.
OK | USE SIMULATION METHOD TO CHECK |
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4. | CHECK VEHICLE SPECIFICATION |
(a) Check the vehicle specification.
Result | Proceed to |
---|---|
w/o AVS | A |
w/ AVS | B |
B | GO TO STEP 7 |
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5. | CHECK HARNESS AND CONNECTOR (FRONT SPEED SENSOR RH - BRAKE ACTUATOR ASSEMBLY) |
(a) Turn the engine switch off.
(b) Make sure that there is no looseness at the locking part and the connecting part of the connectors.
OK:
The connector is securely connected.
(c) Disconnect the A41 skid control ECU (brake actuator assembly) connector.
(d) Disconnect the A93 front speed sensor RH connector.
(e) Check both the connector case and the terminals for deformation and corrosion.
OK:
No deformation or corrosion.
(f) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection | Condition | Specified Condition |
---|---|---|
A93-3 (FR+) - A41-7 (FR+) | Always | Below 1 Ω |
A93-3 (FR+) or A41-7 (FR+) - Body ground | Always | 10 kΩ or higher |
A93-4 (FR-) - A41-6 (FR-) | Always | Below 1 Ω |
A93-4 (FR-) or A41-6 (FR-) - Body ground | Always | 10 kΩ or higher |
NG | REPAIR OR REPLACE HARNESS OR CONNECTOR |
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6. | CHECK FRONT SPEED SENSOR ROTOR RH (CHECK FOR FOREIGN MATTER) |
(a) Remove the component with the front speed sensor rotor RH.
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(b) Check the front speed sensor rotor RH.
OK:
The front speed sensor rotor RH is free of scratches, oil, and foreign matter.
NOTICE:
HINT:
Result | Proceed to |
---|---|
OK | A |
NG (The front speed sensor rotor RH is damaged.) | B |
NG (There is foreign matter on the front speed sensor rotor RH.) | C |
A | REPLACE FRONT SPEED SENSOR RH |
B | REPLACE FRONT AXLE HUB SUB-ASSEMBLY RH |
C | CLEAN FRONT SPEED SENSOR ROTOR RH |
7. | INSPECT FRONT SKID CONTROL SENSOR WIRE RH |
(a) Turn the engine switch off. |
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(b) Make sure that there is no looseness at the locking part and the connecting part of the connectors.
OK:
The connector is securely connected.
(c) Disconnect the z15 and A91 front skid control sensor wire RH connector.
(d) Check both the connector case and the terminals for deformation and corrosion.
OK:
No deformation or corrosion.
(e) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection | Condition | Specified Condition |
---|---|---|
z15-1 (FR+) - A91-3 (FR+) | Always | Below 1 Ω |
z15-1 (FR+) or A91-3 (FR+) - Body ground and other terminals | Always | 10 kΩ or higher |
z15-2 (FR-) - A91-4 (FR-) | Always | Below 1 Ω |
z15-2 (FR-) or A91-4 (FR-) - Body ground and other terminals | Always | 10 kΩ or higher |
NG | REPLACE FRONT SKID CONTROL SENSOR WIRE RH |
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8. | CHECK HARNESS AND CONNECTOR (FRONT SKID CONTROL SENSOR WIRE RH - BRAKE ACTUATOR ASSEMBLY) |
(a) Make sure that there is no looseness at the locking part and the connecting part of the connectors.
OK:
The connector is securely connected.
(b) Disconnect the A41 skid control ECU (brake actuator assembly) connector.
(c) Check both the connector case and the terminals for deformation and corrosion.
OK:
No deformation or corrosion.
(d) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection | Condition | Specified Condition |
---|---|---|
A91-3 (FR+) - A41-7 (FR+) | Always | Below 1 Ω |
A91-3 (FR+) or A41-7 (FR+) - Body ground | Always | 10 kΩ or higher |
A91-4 (FR-) - A41-6 (FR-) | Always | Below 1 Ω |
A91-4 (FR-) or A41-6 (FR-) - Body ground | Always | 10 kΩ or higher |
NG | REPAIR OR REPLACE HARNESS OR CONNECTOR |
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9. | CHECK FRONT SPEED SENSOR ROTOR RH (CHECK FOR FOREIGN MATTER) |
(a) Remove the component with the front speed sensor rotor RH.
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(b) Check the front speed sensor rotor RH.
OK:
The front speed sensor rotor RH is free of scratches, oil, and foreign matter.
NOTICE:
HINT:
Result | Proceed to |
---|---|
OK | A |
NG (The front speed sensor rotor RH is damaged.) | B |
NG (There is foreign matter on the front speed sensor rotor RH.) | C |
A | REPLACE FRONT SPEED SENSOR RH |
B | REPLACE FRONT AXLE HUB SUB-ASSEMBLY RH |
C | CLEAN FRONT SPEED SENSOR ROTOR RH |
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