Generic SAE-standard code: same meaning on every make.
5B4
Specific fault index within the subsystem.
Frequently asked questions about C05B4
What does C05B4 mean?
Brake Booster Temperature Sensor C Circuit High. The control module detected that the signal in the Brake Booster Temperature Sensor C circuit stayed above the expected operating range.
Is C05B4 generic or manufacturer-specific?
C05B4 is a generic OBD-II code: it has the same meaning on every make and model that follows the SAE standard.
Can TuningBot remove C05B4 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 C05B4 is removable in your case.
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