TuningBot DTC Database · v4.37.15
Generic (OBD-II) interpretation in the TuningBot DTC database.
The control module detected that the signal in the Left Front Wheel Speed Sensor A circuit stayed above the expected operating range.
Chassis: brakes, steering and suspension.
Generic SAE-standard code: same meaning on every make.
Specific fault index within the subsystem.
Left Front Wheel Speed Sensor A Circuit High. The control module detected that the signal in the Left Front Wheel Speed Sensor A circuit stayed above the expected operating range.
C0503 is a generic OBD-II code: it has the same meaning on every make and model that follows the SAE standard.
Not guaranteed. Powertrain (P) codes can be reliably disabled in the ECU calibration, but body, chassis and network codes depend on the specific control unit and how the fault is implemented - some can be handled, some cannot. Ask for a quote and our engineers will check your file and tell you, free of charge, whether C0503 is removable in your case.
Understand the system behind this code: Diagnostic Strategy and DTC Logic
ItalianoIT
DeutschDE
EspañolES
PortuguêsPT
FrançaisFR
РусскийRU