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C0663
Left Rear Wheel Speed Sensor B Intermittent/Erratic
Generic · braking
Data confidence
65%
The control module detected an unstable or intermittent signal in the Left Rear Wheel Speed Sensor B circuit.
TuningBot DTC Database · v4.37.15
C0663 Left Rear Wheel Speed Sensor B Intermittent/Erratic
Generic (OBD-II) interpretation in the TuningBot DTC database.
What C0663 means
Related and nearby codes
How to read C0663
C
Chassis: brakes, steering and suspension.
0
Generic SAE-standard code: same meaning on every make.
663
Specific fault index within the subsystem.
Frequently asked questions about C0663
What does C0663 mean?
Left Rear Wheel Speed Sensor B Intermittent/Erratic. The control module detected an unstable or intermittent signal in the Left Rear Wheel Speed Sensor B circuit.
Is C0663 generic or manufacturer-specific?
C0663 is a generic OBD-II code: it has the same meaning on every make and model that follows the SAE standard.
Can TuningBot remove C0663 at file level?
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 C0663 is removable in your case.
Other file services
Understand the system behind this code: Diagnostic Strategy and DTC Logic