Hours: 07–23 daily

TuningBot DTC Database · v4.37.15

P1863 Mitsubishi - High Side 1 System Open Circuit

Manufacturer-specific interpretation for Mitsubishi. All interpretations of P1863

P · PowertrainEngineOBD2

What P1863 means

P1863
High Side 1 System Open Circuit Mitsubishi · engine Data confidence 62%

The control module detected an interruption (open circuit) in the High Side 1 System circuit, so the expected electrical continuity was not present. This is the manufacturer-specific definition used by Mitsubishi.

Related and nearby codes

How to read P1863

P

Powertrain: engine, transmission and driveline systems.

1

Manufacturer-defined range: the meaning can differ between brands.

863

Specific fault index within the subsystem.

Frequently asked questions about P1863

What does P1863 mean?

High Side 1 System Open Circuit. The control module detected an interruption (open circuit) in the High Side 1 System circuit, so the expected electrical continuity was not present. This is the manufacturer-specific definition used by Mitsubishi.

Is P1863 generic or manufacturer-specific?

P1863 is a manufacturer-specific code. In this database it is documented for: Mitsubishi. The same number can mean something different on other brands.

Can TuningBot remove P1863 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

ECU tuningStage 1 dyno results for Mitsubishi engines See the results →

← Search the full DTC database