The control module judged the Exhaust Heat Exchanger Exhaust Bypass Valve B Position Sensor Stop behaviour implausible for the current operating conditions.
TuningBot DTC Database · v4.37.15
P23A8 Exhaust Heat Exchanger Exhaust Bypass Valve B Position Sensor Stop Performance
Generic (OBD-II) interpretation in the TuningBot DTC database.
What P23A8 means
Related and nearby codes
How to read P23A8
Powertrain: engine, transmission and driveline systems.
Generic SAE-standard code: same meaning on every make.
Specific fault index within the subsystem.
Frequently asked questions about P23A8
What does P23A8 mean?
Exhaust Heat Exchanger Exhaust Bypass Valve B Position Sensor Stop Performance. The control module judged the Exhaust Heat Exchanger Exhaust Bypass Valve B Position Sensor Stop behaviour implausible for the current operating conditions.
Is P23A8 generic or manufacturer-specific?
P23A8 is a generic OBD-II code: it has the same meaning on every make and model that follows the SAE standard.
Can TuningBot remove P23A8 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.
Other file services
Understand the system behind this code: Diagnostic Strategy and DTC Logic
