DESCRIPTION Refer to DTCs C1413 and C1414. Click here
 |
DTC No. | Detection Item |
INF Code | DTC Detection Condition |
Trouble Area | MIL |
Note | | C1401 |
Malfunction in Front Speed Sensor RH Circuit |
501 502 507 |
- INF Code: 501
- At a vehicle speed of 10 km/h (6 mph) or more, output voltage from one
of the speed sensors is less than that from the other sensors for 15
seconds or more.
- INF Code: 502
- At a vehicle speed of 10 km/h (6 mph) or more, outputs from both front
speed sensors are 0 km/h (0 mph) for 15 seconds or more. (except when
both rear speed sensors are 0 km/h (0 mph)).
- INF Code: 507
- At a vehicle speed of 10 km/h (6 mph) or more, output from one of the speed sensors is 0 km/h (0 mph) for 1 second or more.
|
- Front speed sensor RH
- Speed sensor installed improperly
- Front speed sensor rotor RH (front axle hub sub-assembly RH)
- Wire harness or connector
| Comes on |
- INF Code 501: SAE Code C0507 (Case 1)
- INF Code 502: SAE Code C140C
- INF Code 507: SAE Code C0507 (Case 2)
- ABS DTC
| | C1402 |
Malfunction in Front Speed Sensor LH Circuit |
511 512 517 |
- INF Code: 511
- At a vehicle speed of 10 km/h (6 mph) or more, output voltage from one
of the speed sensors is less than that from the other sensors for 15
seconds or more.
- INF Code: 512
- At a vehicle speed of 10 km/h (6 mph) or more, outputs from both front
speed sensors are 0 km/h (0 mph) for 15 seconds or more. (except when
both rear speed sensors are 0 km/h (0 mph)).
- INF Code: 517
- At a vehicle speed of 10 km/h (6 mph) or more, output from one of the speed sensors is 0 km/h (0 mph) for 1 second or more.
|
- Front speed sensor LH
- Speed sensor installed improperly
- Front speed sensor rotor LH (front axle hub sub-assembly LH)
- Wire harness or connector
| Comes on |
- INF Code 511: SAE Code C0501 (Case 1)
- INF Code 512: SAE Code C140B
- INF Code 517: SAE Code C0501 (Case 2)
- ABS DTC
| MONITOR DESCRIPTION
When
the vehicle is being driven, if the value of the speed sensor which is
outputting the lowest vehicle speed is significantly lower than the
values of the other speed sensors, or the value of the speed sensor
which is outputting the lowest vehicle speed is 0 km/h (0 mph), the skid
control ECU (brake booster with master cylinder assembly) judges that
the speed sensor is malfunctioning and illuminates the MIL and stores a
DTC. Also, when a wheel speed is being output
(the wheel is not locked), if the output values of the speed sensors for
2 wheels are stuck at 0 km/h (0 mph), the skid control ECU (brake
booster with master cylinder assembly) judges that a speed sensor is
malfunctioning and illuminates the MIL and stores a DTC. MONITOR STRATEGY |
Related DTCs | C0501 (Case 1): Speed sensor range/performance
C0501 (Case 2): Speed sensor range/performance C0507 (Case 1): Speed sensor range/performance
C0507 (Case 2): Speed sensor range/performance C140B: 2 wheel speed sensors malfunction
C140C: 2 wheel speed sensors malfunction | |
Required Sensors/Components(Main) | Speed sensor
Speed sensor rotor | | Required Sensors/Components(Related) |
Stop light switch assembly Parking brake ECU (brake actuator assembly)
Brake actuator (brake booster with master cylinder assembly) Speed sensor | |
Frequency of Operation | Continuous | |
Duration | 1 second: C0501 (Case 2) and C0507 (Case 2)
15 seconds: C0501 (Case 1), C0507 (Case 1), C140B and C140C | |
MIL Operation | Immediately | |
Sequence of Operation | None | TYPICAL ENABLING CONDITIONS C0501 and C0507 (Case 1) |
Monitor runs whenever the following DTCs are not stored |
C0502, C0508, C050E, C0514 (Speed sensor circuit low) C0503, C0509, C050F, C0515 (Speed sensor circuit high)
C0504, C050A, C0510, C0516 (Speed sensor intermittent/erratic) C051C (Case 1) (Acceleration sensor range/performance)
C051C (Case 2) (Acceleration sensor range/performance) C051C (Case 3) (Acceleration sensor range/performance)
C051C (Case 4) (Acceleration sensor range/performance) C051E (Acceleration sensor intermittent/erratic)
C0520 (Case 1) (Acceleration sensor 2 out of range) C0520 (Case 2) (Acceleration sensor 1 and acceleration sensor 2 out of range)
C0520 (Case 3) (Acceleration sensor internal malfunction) C052B (ABS pump motor range/performance)
C052D (ABS pump motor circuit high) C052E (ABS pump motor open circuit)
C0562 (Brake pedal stroke sensor assembly voltage circuit/open) C0594 (Pump motor performance)
C0597 (EEPROM malfunction) C0597 (Lost communication) C0597 (CPU malfunction)
C0597 (IC malfunction) C1202 (Brake master cylinder reservoir assembly level too low)
C120F (Brake fluid level warning switch open circuit) C121D (Pump motor open circuit)
C121E (Pump motor circuit high) C123B (IG1 circuit low) C123E (IG2 circuit low)
C1240 (Yaw rate and acceleration sensor incorrect) C1241 (Brake system voltage circuit low)
C1241 (Speed sensor voltage circuit low) C124A (CAN communication identification signal)
C124B (Brake pedal stroke sensor assembly invalid data) C1256 (Accumulator pressure too low)
C12A6, C12BC, C12D2, C12E8 (ABS holding solenoid range/performance)
C12A7, C12BD, C12D3, C12E9 (ABS holding solenoid circuit low) C12A8, C12BE, C12D4, C12EA (ABS holding solenoid circuit high)
C12B2, C12C8, C12DE, C12F4 (ABS reduction solenoid circuit low) C12B3, C12C9, C12DF, C12F5 (ABS reduction solenoid circuit high)
C12FA (Main relay circuit low) C12FB (Main relay circuit high)
C1336 (Acceleration sensor exceeded learning limit) C1392 (Brake pedal stroke sensor learning not complete)
C139A (One hydraulic path fail) C139D (Linear solenoid (SLA) stuck on)
C13C1, C13CA, C14F2, C14FB (Linear solenoid range/performance) C13C2, C13CB, C14F3, C14FC (Linear solenoid circuit low)
C13C3, C13CC, C14F4, C14FD (Linear solenoid circuit high) C13CD (Brake pressure too low)
C13CE (Brake pressure too high) C1400 (ABS reduction solenoid leakage)
C140B, C140C, C140D, C140E (2 wheel speed sensors malfunction) C1417 (Brake system voltage circuit high)
C1427 (ABS pump motor stuck) C1451 (High pressure hydraulic tube air bleeding not complete)
C146E (ABS solenoid power supply relay circuit low) C146F (ABS solenoid power supply relay circuit high)
C14B0 (Reaction force pressure sensor voltage circuit check) C14B1 (Reaction force pressure sensor lost communication)
C14B2 (Reaction force pressure sensor internal malfunction) C14B3 (Reaction force pressure sensor exceeded learning limit)
C14B4 (Reaction force pressure sensor intermittent/erratic) C14B5 (Reaction force pressure sensor invalid data)
C14B6 (Brake stroke/reaction force pressure correlation) C14C0 (Servo pressure sensor voltage circuit check)
C14C1 (Servo pressure sensor lost communication) C14C2 (Servo pressure sensor internal malfunction)
C14C3 (Servo pressure sensor exceeded learning limit) C14C4 (Servo pressure sensor intermittent/erratic)
C14C5 (Servo pressure sensor invalid data) C14D0 (Accumulator pressure sensor voltage circuit check)
C14D1 (Accumulator pressure sensor lost communication) C14D2 (Accumulator pressure sensor internal malfunction)
C14D3 (Accumulator pressure sensor intermittent/erratic) C14D4 (Case 1) (Accumulator pressure sensor invalid data)
C14D4 (Case 2) (Accumulator pressure sensor intermittent) C14D5 (Accumulator pressure sensor stuck)
C14D7 (Acceleration sensor voltage circuit/open) C14DB (ABS solenoid power supply voltage circuit low)
C14DE (Main relay voltage circuit low) C14DF (Main relay voltage circuit high)
C14E1, C14E4, C14E7, C14EA (Case 1) (Speed sensor voltage circuit low)
C14E1, C14E4, C14E7, C14EA (Case 2) (Speed sensor voltage circuit low)
C14EE (Switching solenoid (SSA) stuck on) C14F7 (Switching solenoid (SGH) stuck on)
P0572 (Stop light switch assembly open circuit) P0573 (Stop light switch assembly circuit high)
P057C, P05DD (Brake pedal stroke sensor assembly open circuit) P057D, P05DE (Brake pedal stroke sensor assembly circuit high)
P057E, P05DF (Brake pedal stroke sensor assembly intermittent/erratic)
P05E0 (Brake pedal stroke sensor assembly "1"/"2" correlation) U0073 (Control module communication bus "A" off)
U0074 (Control module communication bus "B" off) U0100 (Case 1) (Lost communication with ECM/PCM "A")
U0110 (Case 1) (Lost communication with drive motor control module "A")
U0125 (Lost communication with multi-axis acceleration sensor module)
U0293 (Case 1) (Lost communication with hybrid powertrain control module) | |
All of the following conditions are met |
- | | Control valve solenoid |
Non-drive | | Brake system voltage 1 (VM1) |
Less than 16.44 V | | Difference between the highest speed sensor output value and the second lowest speed sensor output value |
Less than 20% of the highest speed sensor output value | |
The second lowest speed sensor output value |
10 km/h (6 mph) or more | | Speed
sensor fail (C0502, C0503, C0504, C0508, C0509, C050A, C050E, C050F,
C0510, C0514, C0515, C0516, C14E1, C14E4, C14E7, C14EA) |
Not detected | C0501 and C0507 (Case 2) |
Monitor runs whenever the following DTCs are not stored |
C0502, C0508, C050E, C0514 (Speed sensor circuit low) C0503, C0509, C050F, C0515 (Speed sensor circuit high)
C0504, C050A, C0510, C0516 (Speed sensor intermittent/erratic) C051C (Case 1) (Acceleration sensor range/performance)
C051C (Case 2) (Acceleration sensor range/performance) C051C (Case 3) (Acceleration sensor range/performance)
C051C (Case 4) (Acceleration sensor range/performance) C051E (Acceleration sensor intermittent/erratic)
C0520 (Case 1) (Acceleration sensor 2 out of range) C0520 (Case 2) (Acceleration sensor 1 and acceleration sensor 2 out of range)
C0520 (Case 3) (Acceleration sensor internal malfunction) C052B (ABS pump motor range/performance)
C052D (ABS pump motor circuit high) C052E (ABS pump motor open circuit)
C0562 (Brake pedal stroke sensor assembly voltage circuit/open) C0594 (Pump motor performance)
C0597 (EEPROM malfunction) C0597 (Lost communication) C0597 (CPU malfunction)
C0597 (IC malfunction) C1202 (Brake master cylinder reservoir assembly level too low)
C120F (Brake fluid level warning switch open circuit) C121D (Pump motor open circuit)
C121E (Pump motor circuit high) C123B (IG1 circuit low) C123E (IG2 circuit low)
C1240 (Yaw rate and acceleration sensor incorrect) C1241 (Brake system voltage circuit low)
C1241 (Speed sensor voltage circuit low) C124A (CAN communication identification signal)
C124B (Brake pedal stroke sensor assembly invalid data) C1256 (Accumulator pressure too low)
C12A6, C12BC, C12D2, C12E8 (ABS holding solenoid range/performance)
C12A7, C12BD, C12D3, C12E9 (ABS holding solenoid circuit low) C12A8, C12BE, C12D4, C12EA (ABS holding solenoid circuit high)
C12B2, C12C8, C12DE, C12F4 (ABS reduction solenoid circuit low) C12B3, C12C9, C12DF, C12F5 (ABS reduction solenoid circuit high)
C12FA (Main relay circuit low) C12FB (Main relay circuit high)
C1336 (Acceleration sensor exceeded learning limit) C1392 (Brake pedal stroke sensor learning not complete)
C139A (One hydraulic path fail) C139D (Linear solenoid (SLA) stuck on)
C13C1, C13CA, C14F2, C14FB (Linear solenoid range/performance) C13C2, C13CB, C14F3, C14FC (Linear solenoid circuit low)
C13C3, C13CC, C14F4, C14FD (Linear solenoid circuit high) C13CD (Brake pressure too low)
C13CE (Brake pressure too high) C1400 (ABS reduction solenoid leakage)
C140B, C140C, C140D, C140E (2 wheel speed sensors malfunction) C1417 (Brake system voltage circuit high)
C1427 (ABS pump motor stuck) C1451 (High pressure hydraulic tube air bleeding not complete)
C146E (ABS solenoid power supply relay circuit low) C146F (ABS solenoid power supply relay circuit high)
C14B0 (Reaction force pressure sensor voltage circuit check) C14B1 (Reaction force pressure sensor lost communication)
C14B2 (Reaction force pressure sensor internal malfunction) C14B3 (Reaction force pressure sensor exceeded learning limit)
C14B4 (Reaction force pressure sensor intermittent/erratic) C14B5 (Reaction force pressure sensor invalid data)
C14B6 (Brake stroke/reaction force pressure correlation) C14C0 (Servo pressure sensor voltage circuit check)
C14C1 (Servo pressure sensor lost communication) C14C2 (Servo pressure sensor internal malfunction)
C14C3 (Servo pressure sensor exceeded learning limit) C14C4 (Servo pressure sensor intermittent/erratic)
C14C5 (Servo pressure sensor invalid data) C14D0 (Accumulator pressure sensor voltage circuit check)
C14D1 (Accumulator pressure sensor lost communication) C14D2 (Accumulator pressure sensor internal malfunction)
C14D3 (Accumulator pressure sensor intermittent/erratic) C14D4 (Case 1) (Accumulator pressure sensor invalid data)
C14D4 (Case 2) (Accumulator pressure sensor intermittent) C14D5 (Accumulator pressure sensor stuck)
C14D7 (Acceleration sensor voltage circuit/open) C14DB (ABS solenoid power supply voltage circuit low)
C14DE (Main relay voltage circuit low) C14DF (Main relay voltage circuit high)
C14E1, C14E4, C14E7, C14EA (Case 1) (Speed sensor voltage circuit low)
C14E1, C14E4, C14E7, C14EA (Case 2) (Speed sensor voltage circuit low)
C14EE (Switching solenoid (SSA) stuck on) C14F7 (Switching solenoid (SGH) stuck on)
P0572 (Stop light switch assembly open circuit) P0573 (Stop light switch assembly circuit high)
P057C, P05DD (Brake pedal stroke sensor assembly open circuit) P057D, P05DE (Brake pedal stroke sensor assembly circuit high)
P057E, P05DF (Brake pedal stroke sensor assembly intermittent/erratic)
P05E0 (Brake pedal stroke sensor assembly "1"/"2" correlation) U0073 (Control module communication bus "A" off)
U0074 (Control module communication bus "B" off) U0100 (Case 1) (Lost communication with ECM/PCM "A")
U0110 (Case 1) (Lost communication with drive motor control module "A")
U0125 (Lost communication with multi-axis acceleration sensor module)
U0293 (Case 1) (Lost communication with hybrid powertrain control module) | |
All of the following conditions are met |
- | | Control valve solenoid |
Non-drive | | Brake system voltage 1 (VM1) |
Less than 16.44 V | |
Stop light switch assembly |
Off | | Parking brake |
Off | | Difference between the highest speed sensor output value and the second lowest speed sensor output value |
Less than 2 km/h (1 mph) | | The second lowest speed sensor output value |
10 km/h (6 mph) or more | | Speed
sensor fail (C0502, C0503, C0504, C0508, C0509, C050A, C050E, C050F,
C0510, C0514, C0515, C0516, C14E1, C14E4, C14E7, C14EA) |
Not detected | C140B and C140C |
Monitor runs whenever the following DTCs are not stored |
C0502, C0508, C050E, C0514 (Speed sensor circuit low) C0503, C0509, C050F, C0515 (Speed sensor circuit high)
C0504, C050A, C0510, C0516 (Speed sensor intermittent/erratic) C14E1, C14E4, C14E7, C14EA (Case 1) (Speed sensor voltage circuit low)
C14E1, C14E4, C14E7, C14EA (Case 2) (Speed sensor voltage circuit low) | |
All of the following conditions are met | - | |
Control valve solenoid | Non-drive | |
Brake system voltage 1 (VM1) | Less than 16.44 V | |
Stop light switch assembly | Off | |
Parking brake | Off | |
Difference in output of the speed sensor with the highest value and the output of the speed sensor with the second highest value |
Less than 20% of the highest speed sensor output value | |
The second highest speed sensor output value |
10 km/h (6 mph) or more | | Speed
sensor fail (C0502, C0503, C0504, C0508, C0509, C050A, C050E, C050F,
C0510, C0514, C0515, C0516, C14E1, C14E4, C14E7, C14EA) |
Not detected | | Stop light switch assembly fail (P0572) |
Not detected | TYPICAL MALFUNCTION THRESHOLDS C0501 and C0507 (Case 1) |
One-seventh of the second lowest speed sensor output value |
Higher than the lowest speed sensor output value | C0501 and C0507 (Case 2) |
The lowest speed sensor output value | 0 km/h (0 mph) | C140B and C140C |
The second lowest speed sensor output value |
0 km/h (0 mph) | COMPONENT OPERATING RANGE C0501 and C0507 (Case 1) |
All of the following conditions are met |
- | | Control valve solenoid |
Non-drive | | Brake system voltage 1 (VM1) |
Less than 16.44 V | | Difference between the highest speed sensor output value and the second lowest speed sensor output value |
Less than 20% of the highest speed sensor output value | |
The second lowest speed sensor output value |
10 km/h (6 mph) or more | | Speed
sensor fail (C0502, C0503, C0504, C0508, C0509, C050A, C050E, C050F,
C0510, C0514, C0515, C0516, C14E1, C14E4, C14E7, C14EA) |
Not detected | |
Speed sensor pass flag |
On | C0501 and C0507 (Case 2) |
All of the following conditions are met |
- | | Control valve solenoid |
Non-drive | | Brake system voltage 1 (VM1) |
Less than 16.44 V | |
Stop light switch assembly |
Off | | Parking brake |
Off | | Difference between the highest speed sensor output value and the second lowest speed sensor output value |
Less than 2 km/h (1 mph) | | The second lowest speed sensor output value |
10 km/h (6 mph) or more | | Speed
sensor fail (C0502, C0503, C0504, C0508, C0509, C050A, C050E, C050F,
C0510, C0514, C0515, C0516, C14E1, C14E4, C14E7, C14EA) |
Not detected | |
Speed sensor pass flag |
On | C140B and C140C |
All of the following conditions are met | - | |
Control valve solenoid | Non-drive | |
Brake system voltage 1 (VM1) | Less than 16.44 V | |
Stop light switch assembly | Off | |
Parking brake | Off | |
Difference
in output of the speed sensor with the highest value and the output of
the speed sensor with the second highest value. |
Less than 20% of the highest speed sensor output value | |
The second highest speed sensor output value |
10 km/h (6 mph) or more | | Speed
sensor fail (C0502, C0503, C0504, C0508, C0509, C050A, C050E, C050F,
C0510, C0514, C0515, C0516, C14E1, C14E4, C14E7, C14EA) |
Not detected | | Stop light switch assembly fail (P0572) |
Not detected | |
Speed sensor pass flag |
On | CONFIRMATION DRIVING PATTERN
- Connect the Techstream to the DLC3.
- Turn the power switch on (IG).
- Turn the Techstream on.
- Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).
- Turn the power switch off.
- Turn the power switch on (READY).
- Turn the Techstream on.
- Drive the vehicle straight at a speed of 15 km/h (9 mph) or more for 15 seconds or more.
- Enter the following menus: Chassis / ABS/VSC/TRAC / Trouble Codes.
- Read the DTCs.
HINT:
- If a DTC is output, the system is malfunctioning.
- If a DTC is not output, perform the following procedure.
- If the DTCs are not output, perform a universal trip and check for permanent DTCs.
Click here
HINT:
- If a permanent DTC is output, the system is malfunctioning.
- If no permanent DTCs are output, the system is normal.
WIRING DIAGRAM Refer to DTCs C1413 and C1414.
Click here PROCEDURE
(a) Clear the DTCs. Click here
Chassis > ABS/VSC/TRAC > Clear DTCs
(b) Turn the power switch off. (c) Turn the power switch on (IG).
(d) Check if the same DTC is output. Click here
Chassis > ABS/VSC/TRAC > Trouble Codes
| Result |
Proceed to | | DTC C1401 is output. |
A | | DTC C1402 is output. |
B |
| B |
 | GO TO STEP 7 |
|
A |
 | |
| 2. |
CHECK FRONT SPEED SENSOR RH INSTALLATION |
| (a) Check the front speed sensor RH installation. OK:
There is no clearance between the sensor and the front steering knuckle.
The installation bolt is tightened properly. Torque 8.5 N*m (87 kgf*cm, 75 in.*lbf) |
 |
|
*1 | Front Speed Sensor RH | |
*a | OK | |
*b | NG | |
*c | 8.5 N*m | |
*d | No Clearance | | |
| NG |
| REINSTALL OR REPLACE FRONT SPEED SENSOR RH |
|
OK | |
| |
| 3. |
CHECK FRONT SPEED SENSOR RH (CHECK FOR FOREIGN MATTER) |
(a) Remove the front speed sensor RH. Click here
(b) Check the front speed sensor tip RH.
OK: The sensor tip is free of scratches, oil, and foreign matter.
NOTICE:
- If there is oil or foreign matter on the front speed sensor RH, clean the front speed sensor RH.
- If the front speed sensor RH is damaged, replace the front speed sensor RH with a new one.
- Check the front speed sensor RH signal after cleaning or replacement.
Click here
| NG |
| CLEAN OR REPLACE FRONT SPEED SENSOR RH |
|
OK | |
| |
| 4. |
READ VALUE USING TECHSTREAM (FRONT SPEED SENSOR RH) |
(a) Install the front speed sensor RH. (b) Select the Data List on the Techstream.
Click here Chassis > ABS/VSC/TRAC > Data List
|
Tester Display | Measurement Item |
Range | Normal Condition |
Diagnostic Note | |
FR Wheel Speed | Front speed sensor RH |
Min.: 0 km/h (0 mph), Max.: 326.4 km/h (203 mph) |
Vehicle stopped: 0 km/h (0 mph) |
When driving at constant speed: No large fluctuations | Chassis > ABS/VSC/TRAC > Data List
|
Tester Display | | FR Wheel Speed |
(c) Check the front speed sensor RH output value. OK: The output value changes in accordance with the vehicle speed.
| OK |
| USE SIMULATION METHOD TO CHECK |
|
NG | |
| |
| 5. |
CHECK HARNESS AND CONNECTOR (BRAKE BOOSTER WITH MASTER CYLINDER ASSEMBLY - FRONT SPEED SENSOR RH) |
(a) Turn the power 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 A35 skid control ECU (brake booster with master cylinder assembly) connector.
(d) Disconnect the A59 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 | |
A35-3 (FR+) - A59-1 (FR+) |
Always | Below 1 Ω | |
A35-3 (FR+) or A59-1 (FR+) - Body ground |
Always | 10 kΩ or higher | |
A35-4 (FR-) - A59-2 (FR-) |
Always | Below 1 Ω | |
A35-4 (FR-) or A59-2 (FR-) - Body ground |
Always | 10 kΩ or higher |
| NG |
| REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
OK | |
| |
| 6. |
CHECK FRONT SPEED SENSOR ROTOR RH (CHECK FOR FOREIGN MATTER) |
(a) Remove the front speed sensor RH and the component with the front speed sensor rotor RH.
for Front Speed Sensor RH: Click here
for Front Speed Sensor Rotor RH: Click here
(b) Check the front speed sensor rotor RH. OK: The front speed sensor rotor RH is free of scratches, oil, and foreign matter.
NOTICE:
- If there is oil or foreign matter on the front speed sensor rotor RH, clean the front speed sensor rotor RH.
- If the front speed sensor rotor RH is damaged, replace the front speed sensor rotor RH with a new one.
- Check the front speed sensor RH signal after cleaning or replacement.
Click here
HINT:
- The front speed sensor rotor RH is incorporated into the front axle hub sub-assembly RH.
- If the front speed sensor rotor RH needs to be replaced, replace it together with the front axle hub sub-assembly RH.
|
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. |
CHECK FRONT SPEED SENSOR LH INSTALLATION |
| (a) Check the front speed sensor LH installation. OK:
There is no clearance between the sensor and the front steering knuckle.
The installation bolt is tightened properly. Torque 8.5 N*m (87 kgf*cm, 75 in.*lbf) |
|
|
|
*1 | Front Speed Sensor LH | |
*a | OK | |
*b | NG | |
*c | 8.5 N*m | |
*d | No Clearance | | |
| NG |
| REINSTALL OR REPLACE FRONT SPEED SENSOR LH |
|
OK | |
| |
| 8. |
CHECK FRONT SPEED SENSOR LH (CHECK FOR FOREIGN MATTER) |
(a) Remove the front speed sensor LH. Click here
(b) Check the front speed sensor tip LH.
OK: The sensor tip is free of scratches, oil, and foreign matter.
NOTICE:
- If there is oil or foreign matter on the front speed sensor LH, clean the front speed sensor LH.
- If the front speed sensor LH is damaged, replace the front speed sensor LH with a new one.
- Check the front speed sensor LH signal after cleaning or replacement.
Click here
| NG |
| CLEAN OR REPLACE FRONT SPEED SENSOR LH |
|
OK | |
| |
| 9. |
READ VALUE USING TECHSTREAM (FRONT SPEED SENSOR LH) |
(a) Install the front speed sensor LH. (b) Select the Data List on the Techstream.
Click here Chassis > ABS/VSC/TRAC > Data List
|
Tester Display | Measurement Item |
Range | Normal Condition |
Diagnostic Note | |
FL Wheel Speed | Front speed sensor LH |
Min.: 0 km/h (0 mph), Max.: 326.4 km/h (203 mph) |
Vehicle stopped: 0 km/h (0 mph) |
When driving at constant speed: No large fluctuations | Chassis > ABS/VSC/TRAC > Data List
|
Tester Display | | FL Wheel Speed |
(c) Check the front speed sensor LH output value. OK: The output value changes in accordance with the vehicle speed.
| OK |
| USE SIMULATION METHOD TO CHECK |
|
NG | |
| |
| 10. |
CHECK HARNESS AND CONNECTOR (BRAKE BOOSTER WITH MASTER CYLINDER ASSEMBLY - FRONT SPEED SENSOR LH) |
(a) Turn the power 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 A35 skid control ECU (brake booster with master cylinder assembly) connector.
(d) Disconnect the A61 front speed sensor LH 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 | |
A35-31 (FL+) - A61-1 (FL+) |
Always | Below 1 Ω | |
A35-31 (FL+) or A61-1 (FL+) - Body ground |
Always | 10 kΩ or higher | |
A35-32 (FL-) - A61-2 (FL-) |
Always | Below 1 Ω | |
A35-32 (FL-) or A61-2 (FL-) - Body ground |
Always | 10 kΩ or higher |
| NG |
| REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
OK | |
| |
| 11. |
CHECK FRONT SPEED SENSOR ROTOR LH (CHECK FOR FOREIGN MATTER) |
(a) Remove the front speed sensor LH and the component with the front speed sensor rotor LH.
for Front Speed Sensor LH: Click here
for Front Speed Sensor Rotor LH: Click here
(b) Check the front speed sensor rotor LH. OK: The front speed sensor rotor LH is free of scratches, oil, and foreign matter.
NOTICE:
- If there is oil or foreign matter on the front speed sensor rotor LH, clean the front speed sensor rotor LH.
- If the front speed sensor rotor LH is damaged, replace the front speed sensor rotor LH with a new one.
- Check the front speed sensor LH signal after cleaning or replacement.
Click here
HINT:
- The front speed sensor rotor LH is incorporated into the front axle hub sub-assembly LH.
- If the front speed sensor rotor LH needs to be replaced, replace it together with the front axle hub sub-assembly LH.
|
Result | Proceed to | |
OK | A | |
NG (The front speed sensor rotor LH is damaged.) |
B | | NG (There is foreign matter on the front speed sensor rotor LH.) |
C |
| A |
| REPLACE FRONT SPEED SENSOR LH |
| B |
| REPLACE FRONT AXLE HUB SUB-ASSEMBLY LH |
| C |
| CLEAN FRONT SPEED SENSOR ROTOR LH | |
