OFFICIAL PINOUT DIAGRAM: BOOT_BOSCH MED17.5.25.png (Boot)2,963,021 bytes

OFFICIAL PINOUT DIAGRAM: BOOT_BOSCH MED17.5.5.png (Boot)5,247,184 bytes

OFFICIAL PINOUT DIAGRAM: BOOT_BOSCH MED17.5.5_.png (Boot)2,865,584 bytes

OFFICIAL PINOUT DIAGRAM: BOSCH MED17.5.25.png (Platform / Bench)600,543 bytes

OFFICIAL PINOUT DIAGRAM: BOSCH MED17.5.5.png (Platform / Bench)493,506 bytes

OFFICIAL PINOUT DIAGRAM: BOSCH MED17.5.5_.png (Platform / Bench)494,569 bytes

STEP-BY-STEP BENCH CONNECTION PROCEDURE (HOWTO PROTOCOL)BENCH / BOOT

Step 1 (Terminal 30 & Terminal 15 Power): Apply regulated bench power 13.5V — 13.8V to constant battery (T30), switched ignition (T15), and ground (GND) pins according to the harness color code above.
Step 2 (CAN Bus & GPT0 / GPT1 Signals): Connect CAN-H & CAN-L, along with signal leads GPT0 (S1) & GPT1 (S2) to enter bench service mode without opening the ECU housing.
Step 3 (Full PFLASH + DFLASH Backup Read): Before writing any calibration, read and archive a full backup of internal Program Flash (PFLASH) and Data Flash / EEPROM (DFLASH).

VEHICLES EQUIPPED WITH ECU MED17.5.25 (24)VEHICLE COMPATIBILITY

Make	Model & Engine	ECU & MCU	Action
Audi	A1(8X) (1400 TFSI CZDA 150)	`BOSCH MED17.5.25` (TC1782)	Open Vehicle →
Audi	A1(8X) (1400 TFSI CZEA 150)	`BOSCH MED17.5.25` (TC1782)	Open Vehicle →
Audi	A1(8X) (1000 TFSI CHZE 82)	`BOSCH MED17.5.25` (TC1782)	Open Vehicle →
Audi	A1(8X) (1400 TFSI CZCA 125)	`BOSCH MED17.5.25` (TC1782)	Open Vehicle →
Audi	A1(8X) (1400 TFSI CZDB 125)	`BOSCH MED17.5.25` (TC1782)	Open Vehicle →
Audi	A1(8X) (1400 TFSI CZDD 125)	`BOSCH MED17.5.25` (TC1782)	Open Vehicle →
Audi	A1(8X) (1000 TFSI • 95)	`BOSCH MED17.5.25` (TC1782)	Open Vehicle →
Audi	A3(8P) (1400 TFSI ultra CZEA 150)	`BOSCH MED17.5.25` (TC1782)	Open Vehicle →
Audi	A3(8V) (1400 TFSI CZCA 125)	`BOSCH MED17.5.25` (TC1782)	Open Vehicle →
Audi	Q2(GAB) (1400 TFSI CZEA 150)	`BOSCH MED17.5.25` (TC1782)	Open Vehicle →
Audi	Q3(8U) (1400 TFSI CZDA 150)	`BOSCH MED17.5.25` (TC1782)	Open Vehicle →
Audi	Q3(8U) (1400 TFSI CZDB 125)	`BOSCH MED17.5.25` (TC1782)	Open Vehicle →
Audi	Q3(8U) (1400 TFSI CZEA 150)	`BOSCH MED17.5.25` (TC1782)	Open Vehicle →
Seat	Ateca(KH7) (1400 TSI CZEA 150)	`BOSCH MED17.5.25` (TC1782)	Open Vehicle →
Seat	Ateca(KH7) (1400 TSI 4Drive CZEA 150)	`BOSCH MED17.5.25` (TC1782)	Open Vehicle →
Seat	Ibiza(6J) (1200 TSI CJZC 90)	`BOSCH MED17.5.25` (TC1782)	Open Vehicle →
Seat	Ibiza(6J) (1200 TSI CJZD 110)	`BOSCH MED17.5.25` (TC1782)	Open Vehicle →
Seat	Leon(5F) (1200 TSI CYVB 110)	`BOSCH MED17.5.25` (TC1782)	Open Vehicle →
Seat	Leon(5F) (1400 TSI CZCA 125)	`BOSCH MED17.5.25` (TC1782)	Open Vehicle →
Seat	Leon(5F) (1400 TSI CZEA 150)	`BOSCH MED17.5.25` (TC1782)	Open Vehicle →
Seat	Toledo(KG) (1200 TSI CJZC 90)	`BOSCH MED17.5.25` (TC1782)	Open Vehicle →
Seat	Toledo(KG) (1400 TSI CZCA 125)	`BOSCH MED17.5.25` (TC1782)	Open Vehicle →
Seat	Toledo(KG) (1400 TSI CZDA 122)	`BOSCH MED17.5.25` (TC1782)	Open Vehicle →
Skoda	Fabia(NJ) (1200 TSI CJZC 90)	`BOSCH MED17.5.25` (TC1782)	Open Vehicle →

ECU Pinout MED17.5.25 Bench / Boot / GPT Pinout — Wiring Diagram