Toyota Urban Cruiser 1.4 D-4D EDC17CP07 1037400403 P552V109 DPF+LSU-Off

The Toyota Urban Cruiser 1.4 D-4D file EDC17CP07 1037400403 P552V109 DPF+LSU-off.bin is a modified diesel engine-control firmware entry. Its label indicates changes intended to disable diesel particulate filter and LSU sensor functions. The exact changes cannot be established from the filename alone.

What the EDC17CP07 controls

The Bosch EDC17CP07 is an engine control unit, or ECU. In a diesel application, it manages fuel injection and other engine operating functions using inputs from sensors and stored calibration data. Its decisions affect engine performance, drivability and emissions control.

In this catalog entry, 1037400403 and P552V109 identify the software and calibration associated with the Urban Cruiser 1.4 D-4D file. They help distinguish it from other EDC17CP07 records, but they do not by themselves establish compatibility with another vehicle or ECU.

What DPF+LSU-off means

A diesel particulate filter, or DPF, traps soot in the exhaust. Normal DPF management includes monitoring conditions and controlling regeneration, the process that burns accumulated soot. The DPF-off label indicates that the file is intended to alter that management rather than retain standard DPF operation.

The LSU-off label indicates a change associated with the LSU exhaust oxygen sensor and its monitoring or control functions. The filename does not show which sensor checks, fault codes or control strategies have been changed, so it should not be read as a complete description of the modification.

The DPF+LSU-off wording identifies this file as a modified variant, not a stock Toyota calibration. Changes to emissions-control systems can affect fault reporting, exhaust emissions and road-use compliance. Diagnostic interpretation should therefore take the modified label into account rather than assume the ECU behaves like an unmodified Urban Cruiser.