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P038B
Ignition I Control Signal Circuit Low
Generic · engine
Data confidence
65%
The control module detected that the signal in the Ignition I Control circuit stayed below the expected operating range.
TuningBot DTC Database · v4.37.15
P038B Ignition I Control Signal Circuit Low
Generic (OBD-II) interpretation in the TuningBot DTC database.
What P038B means
Related and nearby codes
How to read P038B
P
Powertrain: engine, transmission and driveline systems.
0
Generic SAE-standard code: same meaning on every make.
38B
Specific fault index within the subsystem.
Frequently asked questions about P038B
What does P038B mean?
Ignition I Control Signal Circuit Low. The control module detected that the signal in the Ignition I Control circuit stayed below the expected operating range.
Is P038B generic or manufacturer-specific?
P038B is a generic OBD-II code: it has the same meaning on every make and model that follows the SAE standard.
Can TuningBot remove P038B 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