DESCRIPTION
Refer to DTC C050012
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DTC No. |
Detection Item |
DTC Detection Condition |
Trouble Area |
MIL |
DTC Output from |
Note |
---|---|---|---|---|---|---|
C14E014 |
Left Front Wheel Speed Sensor Supply Voltage Circuit Short to Ground or Open |
An open or short in the speed sensor power supply circuit is detected for 0.12 seconds or more. |
|
Comes on |
Brake/EPB |
|
MONITOR DESCRIPTION
The skid control ECU (brake actuator assembly) has a speed sensor circuit self-diagnosis function.
When the self-diagnosis function that is performed during startup detects that the current of the speed sensor supply power line is within a certain range, the skid control ECU (brake actuator assembly) illuminates the MIL and stores this DTC.
MONITOR STRATEGY
Related DTCs |
C14E1: Wheel speed sensor line monitoring for FL (supply line short to GND) |
Required Sensors/Components(Main) |
Skid control ECU (brake actuator assembly) |
Required Sensors/Components(Related) |
Skid control ECU (brake actuator assembly) |
Frequency of Operation |
During initial checking |
Duration |
0.12 seconds |
MIL Operation |
Immediately |
Sequence of Operation |
None |
TYPICAL ENABLING CONDITIONS
Monitor runs whenever the following DTCs are not stored |
TMC's intellectual property |
Other conditions belong to TMC's intellectual property |
- |
TYPICAL MALFUNCTION THRESHOLDS
TMC's intellectual property |
- |
COMPONENT OPERATING RANGE
TMC's intellectual property |
- |
CONFIRMATION DRIVING PATTERN
NOTICE:
When performing the normal judgment procedure, make sure that the driver door is closed and is not opened at any time during the procedure.
HINT:
HINT:
[*]: Normal judgment procedure.
The normal judgment procedure is used to complete DTC judgment and also used when clearing permanent DTCs.
*: Electric Parking Brake System
HINT:
WIRING DIAGRAM
Refer to DTC C050012.
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PROCEDURE
1. |
CHECK HARNESS AND CONNECTOR (SENSOR POWER SOURCE CIRCUIT) |
(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 A13 front speed sensor LH connector.
(c) Check both the connector case and the terminals for deformation and corrosion.
OK:
No deformation or corrosion.
(d) Turn the ignition switch to ON.
(e) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
A13-2 (FL+) - A13-1 (FL-) |
Ignition switch ON |
11 to 14 V |
OK |
REPLACE FRONT SPEED SENSOR LH |
|
2. |
CHECK HARNESS AND CONNECTOR (FRONT SPEED SENSOR LH - 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 A151 skid control ECU (brake actuator assembly) connector.
(c) Disconnect the A13 front speed sensor LH 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 |
---|---|---|
A13-2 (FL+) or A151-24 (FL+) - Body ground |
Always |
10 kΩ or higher |
OK |
REPLACE BRAKE ACTUATOR ASSEMBLY |
NG |
REPAIR OR REPLACE HARNESS OR CONNECTOR |