Powertrain: engine, transmission and driveline systems.
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Generic SAE-standard code: same meaning on every make.
40B
Specific fault index within the subsystem.
Frequently asked questions about P040B
What does P040B mean?
Exhaust Gas Recirculation Temperature Sensor "A" CircuitRange/Performance. The control module judged the Exhaust Gas Recirculation Temperature Sensor "A" behaviour implausible for the current operating conditions.
Is P040B generic or manufacturer-specific?
P040B is a generic OBD-II code: it has the same meaning on every make and model that follows the SAE standard.
Can TuningBot remove P040B at file level?
If the fault logic lives in the ECU calibration, yes: our DTC Removal file service disables the specific fault entry. Checksum correction is not included: it is a separate, optional service. Not sure whether your case qualifies? Request a free assessment and our engineers will check your ECU file.
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