Code Definition

C1839 — Leakage Fault

System: Chassis  |  Type: Manufacturer-Specific  |  Make: Honda

About C1839

C1839 is a manufacturer-specific chassis diagnostic trouble code recorded for Honda vehicles. It belongs to the C-prefix family of codes, which covers chassis, braking, steering, suspension, or stability-control faults.

Scanning & clearing: Chassis (C) codes are stored in the ABS, traction control, or stability-control modules. An enhanced or OEM-level scan tool is usually required to read and clear them.

C1839 is a manufacturer-specific code. The same code string on a different make may have a different meaning. Always confirm the code's definition against the vehicle's service information for the specific make and model under test.

Code Information

DTC C1839 is a manufacturer specific chassis code reported on Honda and Acura vehicles, used on hybrid and plug in models to indicate a leakage fault detected in the charging system. The charging control circuitry monitors insulation resistance and leakage current between the high voltage charging circuit and the vehicle chassis, and sets this code when leakage current exceeds the permitted threshold or insulation resistance drops below specification during charging. This is a safety critical monitor, as charging current leaking to the chassis presents an electric shock hazard, so the system w...

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