The control module detected an interruption (open circuit) in the Exhaust Aftertreatment Fuel Supply Control circuit, so the expected electrical continuity was not present.
TuningBot DTC Database · v4.37.15
P20D7 Exhaust Aftertreatment Fuel Supply Control Circuit/Open
Generic (OBD-II) interpretation in the TuningBot DTC database.
What P20D7 means
Related and nearby codes
How to read P20D7
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 P20D7
What does P20D7 mean?
Exhaust Aftertreatment Fuel Supply Control Circuit/Open. The control module detected an interruption (open circuit) in the Exhaust Aftertreatment Fuel Supply Control circuit, so the expected electrical continuity was not present.
Is P20D7 generic or manufacturer-specific?
P20D7 is a generic OBD-II code: it has the same meaning on every make and model that follows the SAE standard.
Can TuningBot remove P20D7 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
