DTC C0500-12: Left Front Wheel Speed Sensor Circuit Short to Battery [09/2023 - 12/2023]: Procedure
WARNING: This page is about a different car, the 2024 Lexus TX 550h+ and 2024 Lexus TX 500h. However, it is still accessible from the selected car via links, so may be relevant.
- CHECK HARNESS AND CONNECTOR (SENSOR GROUND CIRCUIT)
Pre-procedure1
- Disconnect the B80 front speed sensor LH connector.
- 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 Result B80-3 (FL+) - B80-1 (FL-) Ignition switch ON 11 to 14 V V Result
Proceed to OK NG
Post-procedure1
- None
Result:
OK
REPLACE FRONT SPEED SENSOR LH. Refer to REMOVAL [09/2023 - ]
Result:
NG
See step 2
- CHECK HARNESS AND CONNECTOR (SENSOR GROUND CIRCUIT)
Pre-procedure1
- Turn the ignition switch off.
- Disconnect the BB1 skid control sensor with suspension control wire LH connector.
- 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 Result BB1-5 (FL+) - BB1-6 (FL-) Ignition switch ON 11 to 14 V V Result
Proceed to OK NG
Post-procedure1
- None
Result:
OK
REPLACE SKID CONTROL SENSOR WITH SUSPENSION CONTROL WIRE LH
Result:
NG
See step 3
- CHECK HARNESS AND CONNECTOR (SENSOR GROUND CIRCUIT)
Pre-procedure1
- Turn the ignition switch off.
- Disconnect the B34 No. 2 skid control ECU (brake actuator assembly) connector.
- Measure the voltage according to the value(s) in the table below.
Standard Voltage
Tester Connection Condition Specified Condition Result BB1-6 (FL-) - Body ground Always Below 1.5 V V Result
Proceed to OK NG
Post-procedure1
- None
Result:
NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
Result:
OK
See step 4
- CHECK HARNESS AND CONNECTOR (SKID CONTROL SENSOR WITH SUSPENSION CONTROL WIRE LH - BRAKE ACTUATOR ASSEMBLY)
- Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection Condition Specified Condition Result BB1-5 (FL+) or B34-22 (FL+) - BB1-6 (FL-) or B34-21 (FL-) Always 10 kΩ or higher kΩ Result
Proceed to OK NG
Result:
OK
REPLACE BRAKE ACTUATOR ASSEMBLY. Refer to REMOVAL [09/2023 - 12/2023]
Result:
NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
- Measure the resistance according to the value(s) in the table below.