DENSO GEN1 ECU (SH72531) — Processor, Protocols, Vehicles & Damos Maps

Technical passport of the DENSO GEN1 ECU: SH72531 processor, fitment (3 vehicles: Nissan, Universal ECU Protocol), Bench/Boot PFLASH + DFLASH read/write protocols and checksum recalculation.

1. HARDWARE READ/WRITE PROTOCOLS ON THE BENCH (BENCH / BOOT / OBD — 3 VARIANTS)PCMFLASH / KESS3 / FLEX / BENCH

Brand	ECU variant	MCU	Modes	Supported operations (PFLASH / DFLASH / CheckSum)
Audi	`VAG_TEMIC_DL501Gen1 TC1766`	`TriCore`	Bench •	`Read/Write DFLASH/Ext DFLASH/PFLASH, CheckSum`
Nissan	`DENSO 23740-3Nxxx_Gen1 SH72531`	`SH72531`	Bench •	`Read/Write DFLASH/MAPS/PFLASH, CheckSum`
Porsche	`VAG_TEMIC_DL501Gen1 TC1766`	`TriCore`	Bench •	`Read/Write DFLASH/Ext DFLASH/PFLASH, CheckSum`

ECU model	Processor (MCU)	Vehicle brand fitment	Files in database	Diagram & ROMs
DENSO GEN1	`SH72531`	Nissan, Universal ECU Protocol (3 vehicles)	Vehicle variants in DB: 3 (Stock & Damos matched by software)	Pinout → Passport & files →
VAG_TEMIC_DL501Gen1 DL501GEN1	`TriCore / SPC`	Universal ECU Protocol (1 vehicles)	Exact maps: 0 (Family: 0) • ROMs: 16	Passport & files →