BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS ELECTRONICALLY CONTROLLED BRAKE SYSTEM(for HV Model) C050049 Left Front Wheel Speed Sensor Internal Electronic Failure
DESCRIPTION
When the system is starting up and the skid control ECU (brake actuator assembly) detects a speed sensor circuit malfunction via the speed sensor circuit self-diagnosis function, this DTC is stored.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | MIL | DTC Output from | Note |
|---|---|---|---|---|---|---|
| C050049 | Left Front Wheel Speed Sensor Internal Electronic Failure | A circuit malfunction in the speed sensor is detected during the self-test. | ·
Front speed sensor LH ·
Wire harness or connector ·
Skid control ECU (brake actuator assembly) |
Comes on | Brake/EPB | ·
SAE Code: C0500 (Case 1) ·
Output ECU: Skid control ECU (brake actuator assembly) |
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:
- ·
After repair has been completed, clear the DTC and then check that the vehicle has returned to normal by performing the following All Readiness check procedure.
·When clearing the permanent DTCs, refer to the "CLEAR PERMANENT DTC" procedure.
Connect the GTS to the DLC3.
Turn the ignition switch to ON and turn the GTS on.
Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).
Turn the ignition switch off.
Turn the ignition switch to ON (READY) and turn the GTS on.
Wait for 1 second or more. [*]
- HINT:
-
[*]: Normal judgment procedure.
-
The normal judgment procedure is used to complete DTC judgment and also used when clearing permanent DTCs.
Enter the following menus: Chassis / Brake/EPB* / Utility / All Readiness.
*: Electric Parking Brake System
Check the DTC judgment result.
- HINT:
- ·
If the judgment result shows NORMAL, the system is normal.
·If the judgment result shows ABNORMAL, the system has a malfunction.
·If the judgment result shows INCOMPLETE, perform driving pattern again.
WIRING DIAGRAM
PROCEDURE
Check the vehicle specification.
- Result:
Result Proceed to for GTMC Made A for TFTM Made B
A
B
| *a | Front view of wire harness connector
(to Front Speed Sensor LH) |
Make sure that there is no looseness at the locking part and the connecting part of the connectors.
- OK:
The connector is securely connected.
Disconnect the A13 front speed sensor LH connector.
Check both the connector case and the terminals for deformation and corrosion.
- OK:
No deformation or corrosion.
Turn the ignition switch to ON.
Measure the voltage according to the value(s) in the table below.
- Standard Voltage:
Tester Connection Condition Specified Condition A13-1 (FL+) - A13-2 (FL-) Ignition switch ON 11 to 14 V
- Result:
Proceed to OK NG
OK
NG
| *a | Front view of wire harness connector
(to Front Speed Sensor LH) |
Make sure that there is no looseness at the locking part and the connecting part of the connectors.
- OK:
The connector is securely connected.
Disconnect the A13 front speed sensor LH connector.
Check both the connector case and the terminals for deformation and corrosion.
- OK:
No deformation or corrosion.
Measure the voltage according to the value(s) in the table below.
- Standard Voltage:
Tester Connection Condition Specified Condition A13-1 (FL+) - Body ground Ignition switch off Below 1.5 V
- Result:
Proceed to OK NG
OK
NG
Make sure that there is no looseness at the locking part and the connecting part of the connectors.
- OK:
The connector is securely connected.
Disconnect the A144 skid control ECU (brake actuator assembly) connector.
Disconnect the A13 front speed sensor LH connector.
Check both the connector case and the terminals for deformation and corrosion.
- OK:
No deformation or corrosion.
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
Tester Connection Condition Specified Condition A13-2 (FL-) or A144-7 (FL-) - Body ground Always 10 kΩ or higher
- Result:
Proceed to OK NG
OK
NG
| *a | Front view of wire harness connector
(to Front Speed Sensor LH) |
Make sure that there is no looseness at the locking part and the connecting part of the connectors.
- OK:
The connector is securely connected.
Disconnect the A144 skid control ECU (brake actuator assembly) connector.
Disconnect the A13 front speed sensor LH connector.
Check both the connector case and the terminals for deformation and corrosion.
- OK:
No deformation or corrosion.
Measure the voltage according to the value(s) in the table below.
- Standard Voltage:
Tester Connection Condition Specified Condition A13-1 (FL+) - Body ground Always Below 1.5 V
- Result:
Proceed to OK NG
OK
NG
| *a | Front view of wire harness connector
(to Front Speed Sensor LH) |
Make sure that there is no looseness at the locking part and the connecting part of the connectors.
- OK:
The connector is securely connected.
Disconnect the A13 front speed sensor LH connector.
Check both the connector case and the terminals for deformation and corrosion.
- OK:
No deformation or corrosion.
Turn the ignition switch to ON.
Measure the voltage according to the value(s) in the table below.
- Standard Voltage:
Tester Connection Condition Specified Condition A13-1 (FL+) - Body ground Ignition switch ON 11 to 14 V
- Result:
Proceed to OK NG
OK
NG
| *a | Front view of wire harness connector
(to Front Speed Sensor LH) |
Make sure that there is no looseness at the locking part and the connecting part of the connectors.
- OK:
The connector is securely connected.
Disconnect the A144 skid control ECU (brake actuator assembly) connector.
Disconnect the A13 front speed sensor LH connector.
Check both the connector case and the terminals for deformation and corrosion.
- OK:
No deformation or corrosion.
Measure the voltage according to the value(s) in the table below.
- Standard Voltage:
Tester Connection Condition Specified Condition A13-2 (FL-) - Body ground Always Below 1.5 V
- Result:
Proceed to OK NG
OK
NG
Make sure that there is no looseness at the locking part and the connecting part of the connectors.
- OK:
The connector is securely connected.
Disconnect the A144 skid control ECU (brake actuator assembly) connector.
Disconnect the A13 front speed sensor LH connector.
Check both the connector case and the terminals for deformation and corrosion.
- OK:
No deformation or corrosion.
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
Tester Connection Condition Specified Condition A13-2 (FL-) - A144-7 (FL-) Always Below 1 Ω A13-1 (FL+) or A144-24 (FL+) - A13-2 (FL-) or A144-7 (FL-) Always 10 kΩ or higher
- Result:
Proceed to OK NG
OK
NG
Make sure that there is no looseness at the locking part and the connecting part of the connectors.
- OK:
The connector is securely connected.
Disconnect the A144 skid control ECU (brake actuator assembly) connector.
Disconnect the A13 front speed sensor LH connector.
Check both the connector case and the terminals for deformation and corrosion.
- OK:
No deformation or corrosion.
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
Tester Connection Condition Specified Condition A13-1 (FL+) - A144-24 (FL+) Always Below 1 Ω A13-1 (FL+) or A144-24 (FL+) - Body ground Always 10 kΩ or higher
- Result:
Proceed to OK NG
OK
NG
| *a | Front view of wire harness connector
(to Front Speed Sensor LH) |
Make sure that there is no looseness at the locking part and the connecting part of the connectors.
- OK:
The connector is securely connected.
Disconnect the A13 front speed sensor LH connector.
Check both the connector case and the terminals for deformation and corrosion.
- OK:
No deformation or corrosion.
Turn the ignition switch to ON.
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
- Result:
Proceed to OK NG
OK
NG
| *a | Front view of wire harness connector
(to Front Speed Sensor LH) |
Make sure that there is no looseness at the locking part and the connecting part of the connectors.
- OK:
The connector is securely connected.
Disconnect the A13 front speed sensor LH connector.
Check both the connector case and the terminals for deformation and corrosion.
- OK:
No deformation or corrosion.
Measure the voltage according to the value(s) in the table below.
- Standard Voltage:
Tester Connection Condition Specified Condition A13-2 (FL+) - Body ground Ignition switch off Below 1.5 V
- Result:
Proceed to OK NG
OK
NG
Make sure that there is no looseness at the locking part and the connecting part of the connectors.
- OK:
The connector is securely connected.
Disconnect the A144 skid control ECU (brake actuator assembly) connector.
Disconnect the A13 front speed sensor LH connector.
Check both the connector case and the terminals for deformation and corrosion.
- OK:
No deformation or corrosion.
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
Tester Connection Condition Specified Condition A13-1 (FL-) or A144-7 (FL-) - Body ground Always 10 kΩ or higher
- Result:
Proceed to OK NG
OK
NG
| *a | Front view of wire harness connector
(to Front Speed Sensor LH) |
Make sure that there is no looseness at the locking part and the connecting part of the connectors.
- OK:
The connector is securely connected.
Disconnect the A144 skid control ECU (brake actuator assembly) connector.
Disconnect the A13 front speed sensor LH connector.
Check both the connector case and the terminals for deformation and corrosion.
- OK:
No deformation or corrosion.
Measure the voltage according to the value(s) in the table below.
- Standard Voltage:
Tester Connection Condition Specified Condition A13-2 (FL+) - Body ground Always Below 1.5 V
- Result:
Proceed to OK NG
OK
NG
| *a | Front view of wire harness connector
(to Front Speed Sensor LH) |
Make sure that there is no looseness at the locking part and the connecting part of the connectors.
- OK:
The connector is securely connected.
Disconnect the A13 front speed sensor LH connector.
Check both the connector case and the terminals for deformation and corrosion.
- OK:
No deformation or corrosion.
Turn the ignition switch to ON.
Measure the voltage according to the value(s) in the table below.
- Standard Voltage:
Tester Connection Condition Specified Condition A13-2 (FL+) - Body ground Ignition switch ON 11 to 14 V
- Result:
Proceed to OK NG
OK
NG
| *a | Front view of wire harness connector
(to Front Speed Sensor LH) |
Make sure that there is no looseness at the locking part and the connecting part of the connectors.
- OK:
The connector is securely connected.
Disconnect the A144 skid control ECU (brake actuator assembly) connector.
Disconnect the A13 front speed sensor LH connector.
Check both the connector case and the terminals for deformation and corrosion.
- OK:
No deformation or corrosion.
Measure the voltage according to the value(s) in the table below.
- Standard Voltage:
Tester Connection Condition Specified Condition A13-1 (FL-) - Body ground Always Below 1.5 V
- Result:
Proceed to OK NG
OK
NG
Make sure that there is no looseness at the locking part and the connecting part of the connectors.
- OK:
The connector is securely connected.
Disconnect the A144 skid control ECU (brake actuator assembly) connector.
Disconnect the A13 front speed sensor LH connector.
Check both the connector case and the terminals for deformation and corrosion.
- OK:
No deformation or corrosion.
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
Tester Connection Condition Specified Condition A13-1 (FL-) - A144-7 (FL-) Always Below 1 Ω A13-2 (FL+) or A144-24 (FL+) - A13-1 (FL-) or A144-7 (FL-) Always 10 kΩ or higher
- Result:
Proceed to OK NG
OK
NG
Make sure that there is no looseness at the locking part and the connecting part of the connectors.
- OK:
The connector is securely connected.
Disconnect the A144 skid control ECU (brake actuator assembly) connector.
Disconnect the A13 front speed sensor LH connector.
Check both the connector case and the terminals for deformation and corrosion.
- OK:
No deformation or corrosion.
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
Tester Connection Condition Specified Condition A13-2 (FL+) - A144-24 (FL+) Always Below 1 Ω A13-2 (FL+) or A144-24 (FL+) - Body ground Always 10 kΩ or higher
- Result:
Proceed to OK NG
OK
NG