Module 17 - Volkswagen K Line

Caption:

• RD: Read
• WR: Write
• CK: Checksum correction

Supported ECU

• 1.6L CFNA/CFNB/CLRA 7GV K-Line (Marelli 7GV/832KB) [RD/WR/CK]
• 1.4L CGGB K-Line (Marelli 7GVE/832KB) [RD/WR/CK]
• 1.6L BFQ K-Line (Simos 3.3A/512KB) [RD/WR/CK]
• 1.4L BUD/BXW/CGGA/CGGB K-Line (Marelli 4HV/832KB) [RD/WR/CK]
• 1.6L BSA/BSE/BSF Calibration K-Line (Simos 7.1/512KB) [RD/WR/CK]
• 1.6L BSA/BSE/BSF Calibration K-Line (Simos 7PP/1MB) [RD/WR/CK]
• 1.2L BME/BZG/CGPA Calibration K-Line (Simos 9.1/512KB) [RD/WR/CK]

By popular demand, work has begun on mass-produced ECUs from this company. 

A new package has been added, currently containing only one ECU:
1.6L CFNA/CFNB 7GV K-Line (Marelli 7GV/832KB) CFNA/CFNB engines, 1.6L, 85/105 hp. Installed in VW Polo, Jetta, and some Škoda models. This is the most common engine. The ECU has been in use since around 2011 (possibly a bit earlier).

Reading, writing, and error diagnostics are available. The reading/writing time is around 9 minutes.

VW Jetta:

Module: VW: 1.6L CFNA/CFNB 7GV K-Line (Marelli 7GV/832KB)
Identification
Part Number: 03C906014ER
Main number: CFNA-MM7GV-G
Software version: 5084
VIN number: XW8ZZZ16ZDN

VW Polo:

Part Number: 03C906014B
Main Number: CFNA-MM7GV
Software Version: 9970
VIN Number: XW8ZZZ61ZEG

In principle, there are no special nuances when working with this ECU. If a write interruption occurs, you can simply restart the operation. You can manipulate the ignition, and nothing will happen to the ECU—it remains in boot mode and waits for further operations. In case of an unsuccessful write, the “recovery mode” is automatically activated, in which the data transfer speed via the K-line is reduced. If this is not needed, you can uncheck the option in the settings. If you encounter reading issues, enabling this option will also switch to a lower speed.

After reading or writing, you need to cycle the ignition (with a pause) to return the ECU to its normal operating mode.

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