Bosch MED17.5.20 at a glance
ECU overview
The Bosch MED17.5.20 is part of the MED17 generation from Bosch. In the Map Decoder database it is linked to Skoda, Seat, Audi, VW and Porsche vehicles. Coverage for this ECU is built from 15 stored modifications learned on real original and modified files.
What Map Decoder can do on an MED17.5.20 file
Every operation below is backed by a stored, verified modification for MED17.5.20. Nothing is listed that the software cannot actually perform on this ECU.
Catalyst Off
Disables catalyst efficiency monitoring in MED17.5.20.
Lambda / O2
Disables lambda / O2 sensor monitoring in MED17.5.20 without breaking fuelling.
Throttle Valve (TVA)
Disables throttle valve actuator control and monitoring in MED17.5.20.
Map detection and patch generation for MED17.5.20
Map detection
Upload an original MED17.5.20 read. Map Decoder locates the relevant calibration tables automatically instead of relying on a fixed address list, so files from different software versions are handled.
Patch generation
A stored modification is only offered when it fits your binary. Region similarity and anchor signatures are checked against the uploaded file first, so a change learned on one software version is never blindly written to another.
Checksum correction
Checksums covering the regions a patch touches are recalculated as part of patch generation, so the ECU accepts the modified flash.
MED17.5.20 DTC codes
Map Decoder holds 317 diagnostic trouble codes for the MED17.5.20. Each entry stores the address and the byte values measured on a real file.
P0001P000AP0010P0011P0012P0016P0030P0031P0032P0033P0034P0035P0036P0037P0038P0071P0089P0097P0098P0106P0107P0108P0112P0113
Other MED17 ECUs
- Bosch MED17.0.14 solutions · 382 DTC
- Bosch MED17.1.13 solutions · 766 DTC
- Bosch MED17.1.63 solutions · 450 DTC
- Bosch MED17.5.21 solution
- Bosch MED17.5.213 solutions · 476 DTC
- Bosch MED17.5.253 solutions · 550 DTC
- Bosch MED17.5.51 solution · 319 DTC
- Bosch MED17.7.23 solutions · 581 DTC
- Bosch MED17.7.31 solution · 679 DTC
- Bosch MED17.7.71 solution · 481 DTC
- Bosch MED17.9.34 solutions · 153 DTC
- Bosch MED17.9.82 solutions · 372 DTC
MED17.5.20 solutions by vehicle brand
- Audi Lambda / O234 ECUs · 722 variants
- Audi Throttle Valve (TVA)29 ECUs · 585 variants
- Audi Catalyst Off14 ECUs · 385 variants
- Porsche Lambda / O229 ECUs · 195 variants
- Skoda Lambda / O234 ECUs · 190 variants
- Skoda Throttle Valve (TVA)29 ECUs · 168 variants
- Seat Lambda / O234 ECUs · 154 variants
- Seat Throttle Valve (TVA)29 ECUs · 133 variants
- Porsche Throttle Valve (TVA)24 ECUs · 126 variants
- Porsche Catalyst Off14 ECUs · 125 variants
- Skoda Catalyst Off14 ECUs · 101 variants
- Seat Catalyst Off14 ECUs · 69 variants
Bosch MED17.5.20 — frequently asked questions
What is the Bosch MED17.5.20?
The MED17.5.20 is an engine control unit produced by Bosch, part of the MED17 generation. It is used in Audi, Porsche, Seat, Skoda and VW vehicles.
Can Map Decoder identify maps in MED17.5.20 files?
Yes. Upload an original read and the relevant calibration tables are located automatically. The result is verified against the binary before any patch is offered, so a mismatched file is rejected rather than silently patched.
Which operations are supported for the Bosch MED17.5.20?
Validated operations for this ECU: Catalyst Off, Lambda / O2 and Throttle Valve (TVA). They come from 15 stored modifications learned on real files.
Does Map Decoder support DTC removal on the MED17.5.20?
Yes. 317 diagnostic trouble codes are mapped for this ECU, each with the address and the byte values measured on a real file rather than a guessed constant.
Does Map Decoder correct the checksum after patching an MED17.5.20 file?
Yes. Checksums covering the regions a patch changes are recalculated during patch generation, so the modified file is accepted by the ECU.
Work on Bosch MED17.5.20 files
Map Decoder analyses Bosch MED17.5.20 files, detects the maps and generates a verified patch with the checksum corrected.