The control module detected that the signal in the Engine Coolant Heater B Control circuit stayed below the expected operating range.
TuningBot DTC Database · v4.37.15
P01ED Engine Coolant Heater B Control Circuit Low
Generic (OBD-II) interpretation in the TuningBot DTC database.
What P01ED means
Related and nearby codes
How to read P01ED
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 P01ED
What does P01ED mean?
Engine Coolant Heater B Control Circuit Low. The control module detected that the signal in the Engine Coolant Heater B Control circuit stayed below the expected operating range.
Is P01ED generic or manufacturer-specific?
P01ED is a generic OBD-II code: it has the same meaning on every make and model that follows the SAE standard.
Can TuningBot remove P01ED 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
