DTC P1445 — Particulate Filter Additive Quantity Threshold Exceeded (FAP Ash Full)
DTC P1445 is a standardized diagnostic trouble code defined as "Particulate Filter Additive Quantity Threshold Exceeded (FAP Ash Full)" within the DPF / FAP Off subsystem. In DaVinci Deluxe Cloud Edition (v1.0.44), workshops can diagnose root causes or apply deterministic off-road/motorsport subsystem & path-level P1445 deactivation on a 100% virgin original ECU file.
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Engineering Breakdown for Fault Code P1445
| Diagnostic Parameter | Technical Specification for P1445 |
|---|---|
| Fault Code Identifier | P1445 (SAE J2012 / ISO 15031-6 Powertrain) |
| Official Definition | Particulate Filter Additive Quantity Threshold Exceeded (FAP Ash Full) |
| Primary ECU Subsystem | DPF / FAP Off |
| Limp-Mode & Derate Impact | Triggers MIL / glow-plug lamp, blocks active regeneration, reduces boost/fuel torque request, and elevates exhaust backpressure. |
| Workshop Pre-Check | Inspect harness continuity, +5V/+12V/+24V reference supply, live sensor plausibility, and mechanical component integrity before any software modification. |
| Off-Road / Motorsport Calibration | Upload a 100% virgin unmodified original ECU binary at https://www.davincideluxe.fr/online-ecu-tuning to apply complete DPF / FAP Off calibration or selective path-level P1445 fault-class deactivation while keeping engine oil, temperature, and rail-pressure safety intact. |
Related OBD2, Euro 6d & 24V Diagnostic Trouble Codes (148)
Frequently Asked Technical Questions
What does fault code P1445 mean?
Diagnostic Trouble Code P1445 means "Particulate Filter Additive Quantity Threshold Exceeded (FAP Ash Full)" and belongs to the DPF / FAP Off monitoring subsystem.
What symptoms does P1445 cause on diesel or petrol ECUs?
Triggers MIL / glow-plug lamp, blocks active regeneration, reduces boost/fuel torque request, and elevates exhaust backpressure.
How is P1445 calibrated safely in DaVinci Deluxe Cloud Edition (v1.0.44)?
After mechanical verification, upload a 100% virgin original Bench, Boot, or OBD ECU readout to DaVinci Deluxe Cloud Edition (https://www.davincideluxe.fr/online-ecu-tuning) to apply deterministic DPF / FAP Off calibration or selective path-level P1445 deactivation with 24h/7 live engineering support.