The control module determined that the Exhaust Aftertreatment Power Relay Control did not change state as commanded and appears stuck.
TuningBot DTC Database · v4.37.15
P05F7 Exhaust Aftertreatment Power Relay Control Circuit Stuck Off
Generic (OBD-II) interpretation in the TuningBot DTC database.
What P05F7 means
Related and nearby codes
How to read P05F7
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 P05F7
What does P05F7 mean?
Exhaust Aftertreatment Power Relay Control Circuit Stuck Off. The control module determined that the Exhaust Aftertreatment Power Relay Control did not change state as commanded and appears stuck.
Is P05F7 generic or manufacturer-specific?
P05F7 is a generic OBD-II code: it has the same meaning on every make and model that follows the SAE standard.
Can TuningBot remove P05F7 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
