Toyota Corolla Cross: Left Front Wheel Speed Sensor Signal Stuck Low (C050023)
DESCRIPTION
Refer to DTC C050012
Click here .gif)
|
DTC No. |
Detection Item |
DTC Detection Condition |
Trouble Area |
|---|---|---|---|
|
C050023 |
Left Front Wheel Speed Sensor Signal Stuck Low |
|
|
CAUTION / NOTICE / HINT
NOTICE:
DTC precaution
Click here
|
Procedure |
|---|
|
PROCEDURE
|
1. |
CHECK FREEZE FRAME DATA (WHEEL SPEED) |
(a) Select a DTC to display the Freeze Frame Data.
(b) Read the freeze frame data of DTC C050023.
Chassis > Brake/EPB|
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 FL 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 FL Wheel Speed is 2 km/h (1 mph) or less when all other values are 50 km/h (31 mph) or more. |
B |
| B | .gif)
|
GO TO STEP 3 |
|
.gif)
|
2. |
READ VALUE USING GTS (FL WHEEL SPEED) |
(a) Check the Data List using the GTS.
Chassis > Brake/EPB > Data List|
Tester Display |
Measurement Item |
Range |
Normal Condition |
Diagnostic Note |
|---|---|---|---|---|
|
FL Wheel Speed |
Front 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 |
|---|
|
FL Wheel Speed |
(b) Start the engine and perform a road test.
(c) Check that the value of FL 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 FL 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.
| OK |
|
USE SIMULATION METHOD TO CHECK |
|
|
3. |
CHECK FRONT SPEED SENSOR LH INSTALLATION |
|
(a) Check the front speed sensor LH installation. OK: There is no clearance between the front speed sensor LH and the steering knuckle LH. The installation bolt is tightened properly. Torque 8.5 N*m (87 kgf*cm, 75 in.*lbf) |
|
.png)
| OK |
|
REPLACE FRONT SPEED SENSOR LH |
| NG |
|
REINSTALL OR REPLACE FRONT SPEED SENSOR LH |
