DESCRIPTION
Refer to DTC C050C12
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DTC No. |
Detection Item |
DTC Detection Condition |
Trouble Area |
MIL |
DTC Output from |
Note |
---|---|---|---|---|---|---|
C050C14 |
Left Rear Wheel Speed Sensor Circuit Short to Ground or Open |
A short or open circuit is detected in the speed sensor signal circuit for 0.12 seconds or more. |
|
Comes on |
Brake/EPB |
|
MONITOR DESCRIPTION
C050E (Case 1):When the self-diagnosis function that is performed during startup detects that the current of the speed sensor circuit is less than a certain value, the skid control ECU (brake actuator assembly) illuminates the MIL and stores this DTC.
MONITOR STRATEGY
Related DTCs |
C050E (Case 1): Wheel speed sensor line monitoring for RL (signal line short to GND) C050E (Case 2): Wheel speed sensor line monitoring for RL (undefined) |
Required Sensors/Components(Main) |
Skid control ECU (brake actuator assembly) Speed sensor |
Required Sensors/Components(Related) |
Skid control ECU (brake actuator assembly) |
Frequency of Operation |
Continuous |
Duration |
0.12 seconds |
MIL Operation |
2 driving cycles |
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 C050C12.
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PROCEDURE
1. |
CHECK HARNESS AND CONNECTOR (SENSOR GROUND 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 n4 rear 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 |
---|---|---|
n4-1 (RL+) - n4-2 (RL-) |
Ignition switch ON |
11 to 14 V |
NG |
GO TO STEP 4 |
|
2. |
INSPECT NO. 2 PARKING BRAKE WIRE 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 n4 skid control sensor wire LH (No. 2 parking brake wire assembly) connector.
(c) Disconnect the nO2 skid control sensor wire LH (No. 2 parking brake wire assembly) 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 |
---|---|---|
n4-2 (RL-) or nO2-1 (RL-) - Body ground and other terminals |
Always |
10 kΩ or higher |
NG |
REPLACE NO. 2 PARKING BRAKE WIRE ASSEMBLY |
|
3. |
CHECK HARNESS AND CONNECTOR (NO. 2 PARKING BRAKE WIRE ASSEMBLY - 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 nO2 skid control sensor wire LH (No. 2 parking brake wire assembly) 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 |
---|---|---|
nO2-1 (RL-) or A151-23 (RL-) - Body ground |
Always |
10 kΩ or higher |
OK |
REPLACE REAR SPEED SENSOR LH |
NG |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
4. |
INSPECT NO. 2 PARKING BRAKE WIRE 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 n4 skid control sensor wire LH (No. 2 parking brake wire assembly) connector.
(c) Disconnect the nO2 skid control sensor wire LH (No. 2 parking brake wire assembly) 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 |
---|---|---|
n4-2 (RL-) - nO2-1 (RL-) |
Always |
Below 1 Ω |
NG |
REPLACE NO. 2 PARKING BRAKE WIRE ASSEMBLY |
|
5. |
CHECK HARNESS AND CONNECTOR (NO. 2 PARKING BRAKE WIRE ASSEMBLY - 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 nO2 skid control sensor wire LH (No. 2 parking brake wire assembly) 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 |
---|---|---|
nO2-1 (RL-) - A151-23 (RL-) |
Always |
Below 1 Ω |
OK |
REPLACE BRAKE ACTUATOR ASSEMBLY |
NG |
REPAIR OR REPLACE HARNESS OR CONNECTOR |