The control module detected a fault associated with the Inappropriate and low SOC circuit or function; the stored code identifies the affected component rather than a single failure mode. This is the manufacturer-specific definition used by Hyundai.
TuningBot DTC Database · v4.37.15
P1A86 Diagnostic Trouble Code (2 interpretations)
2 manufacturer-specific interpretations across 2 manufacturers in the TuningBot DTC database.
Hyundai
1 interpretation
PSA
1 interpretationThe control module detected the fault condition "Temperature sensor fault" for the Reversible alternator. Documented for the Continental SID 807 injection ECU (DV6C 1.6 HDi) on Peugeot applications; the same PSA control units are also fitted to Citroën models.
Related and nearby codes
How to read P1A86
Powertrain: engine, transmission and driveline systems.
Manufacturer-defined range: the meaning can differ between brands.
Specific fault index within the subsystem.
Frequently asked questions about P1A86
What does P1A86 mean?
Diagnostic Trouble Code (2 interpretations). The control module detected a fault associated with the Inappropriate and low SOC circuit or function; the stored code identifies the affected component rather than a single failure mode. This is the manufacturer-specific definition used by Hyundai.
Is P1A86 generic or manufacturer-specific?
P1A86 is a manufacturer-specific code. In this database it is documented for: Hyundai, PSA. The same number can mean something different on other brands.
Can TuningBot remove P1A86 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
