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ECU TECHNICAL ENCYCLOPEDIA (WIKI LAYER 1) • HOWTO & TECHARTICLE

ECU Pinout MED17.5.21 Bench / Boot / GPT Pinout — Wiring Diagram

Step-by-step bench connection diagram for ECU MED17.5.21 (non-invasive Platform Bench & Boot Mode): T30/T15 power supply, twisted-pair CAN-H/CAN-L, and GPT0/GPT1 signal pinout.

OFFICIAL PINOUT DIAGRAM: BOOT_BOSCH MED17.5.21.png (Boot)2,740,665 bytes
BOOT_BOSCH MED17.5.21.png
OFFICIAL PINOUT DIAGRAM: BOSCH MED17.5.21.png (Platform / Bench)498,924 bytes
BOSCH MED17.5.21.png
STEP-BY-STEP BENCH CONNECTION PROCEDURE (HOWTO PROTOCOL)BENCH / BOOT
  1. 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.
  2. 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.
  3. 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 MED17.5.21 (24)VEHICLE COMPATIBILITY
MakeModel & EngineECU & MCUAction
Audi A1(8X) (1400 TSI CPTA 140) BOSCH MED17.5.21 (TC1782) Open Vehicle →
Audi A1(8X) (1400 TFSI CZDA 150) BOSCH MED17.5.21 (TC1782) Open Vehicle →
Audi A1(8X) (1400 TFSI CZEA 150) BOSCH MED17.5.21 (TC1782) Open Vehicle →
Audi A3(8P) (1400 TFSI CHPA 140) BOSCH MED17.5.21 (TC1782) Open Vehicle →
Audi A3(8P) (1400 TFSI CMBA 122) BOSCH MED17.5.21 (TC1782) Open Vehicle →
Audi A3(8P) (1400 TSI CPTA 140) BOSCH MED17.5.21 (TC1782) Open Vehicle →
Audi A3(8P) (1400 TFSI CPVA 122) BOSCH MED17.5.21 (TC1782) Open Vehicle →
Audi A3(8V) (1400 TFSI g-tron CPWA 110) BOSCH MED17.5.21 (TC1782) Open Vehicle →
Seat Ibiza(6J) (1400 TSI CPTA 140) BOSCH MED17.5.21 (TC1782) Open Vehicle →
Seat Leon(5F) (1400 TGI CPWA 110) BOSCH MED17.5.21 (TC1782) Open Vehicle →
Seat Leon(5F) (1400 TSI CHPA 140) BOSCH MED17.5.21 (TC1782) Open Vehicle →
Seat Leon(5F) (1000 TSI CHZD 116) BOSCH MED17.5.21 (TC1782) Open Vehicle →
Seat Leon(5F) (1200 TSI CJZA 105) BOSCH MED17.5.21 (TC1782) Open Vehicle →
Seat Leon(5F) (1200 TSI CJZB 86) BOSCH MED17.5.21 (TC1782) Open Vehicle →
Seat Leon(5F) (1400 TSI CMBA 122) BOSCH MED17.5.21 (TC1782) Open Vehicle →
Seat Leon(5F) (1400 TSI CPTA 140) BOSCH MED17.5.21 (TC1782) Open Vehicle →
Seat Leon(1F8) (1400 TSI CXSA 122) BOSCH MED17.5.21 (TC1782) Open Vehicle →
Skoda Octavia(1Z) (1400 TSI CHPA 140) BOSCH MED17.5.21 (TC1782) Open Vehicle →
Skoda Octavia(1Z) (1000 TSI CHZD 116) BOSCH MED17.5.21 (TC1782) Open Vehicle →
Skoda Octavia(1Z) (1200 TSI CJZA 105) BOSCH MED17.5.21 (TC1782) Open Vehicle →
Skoda Octavia(1Z) (1200 TSI CJZB 86) BOSCH MED17.5.21 (TC1782) Open Vehicle →
Skoda Octavia(1Z) (1400 G-Tec CPWA 110) BOSCH MED17.5.21 (TC1782) Open Vehicle →
Volkswagen (VW) CC(I) (1400 TGI CPWA 110) BOSCH MED17.5.21 (TC1782) Open Vehicle →
Volkswagen (VW) Golf(VII) (1200 TSI CJZA 105) BOSCH MED17.5.21 (TC1782) Open Vehicle →