Code Definition

P260E — Diesel Particulate Filter (DPF) Regeneration Lamp Control Circuit

System: Powertrain  |  Type: Generic (OBD-II Standard)  |  Make: Generic

About P260E

P260E is a generic (obd-ii standard) powertrain diagnostic trouble code. It belongs to the P-prefix family of codes, which covers engine, transmission, emissions, or fuel-system faults.

When P260E is stored, the module has detected an electrical-circuit fault in the wiring, connector, or driver associated with the named component.

Scanning & clearing: A generic OBD-II scan tool will usually read and clear powertrain (P) codes. For live data, freeze-frame capture, and bi-directional tests you may need a more capable scan tool that supports the vehicle's ECM protocol.

Because P260E is a generic OBD-II code, its base definition is shared across manufacturers. The specific diagnostic steps, reference values, and repair procedures can vary by vehicle, and the TaT Diagnostic Assistant includes verified procedures submitted by working technicians.

Code Information

The Engine Control Module controls the DPF regeneration indicator lamp to tell the driver when a regeneration request or warning condition is present. DTC P260E sets when the ECM detects an electrical fault in the lamp control circuit, such as an open circuit, short to ground, or short to battery, that prevents the lamp from operating as commanded. The fault relates to the indicator control circuit and its driver, not to the DPF regeneration process itself. Symptoms are usually limited to the regeneration lamp not working correctly, though the driver may then miss a genuine regeneration warnin...

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