ECU overview
- ECU manufacturer
- Denso
- ECU family
- SH
- ECU model
- SHxx
- Supported solutions
- —
- Mapped DTC codes
- 249
- Vehicle brands
- Mazda
The Denso SHxx is part of the SH generation from Denso. In the Map Decoder database it is linked to Mazda vehicles. Coverage for this ECU is built from measured file data, not from generic templates.
SHxx file analysis
Map Decoder holds measured diagnostic data for SHxx and can analyse and patch DTC entries in these files. Performance and emission modifications are added to the catalogue as they are learned from real files.
Map detection and patch generation for SHxx
Map detection
Upload an original SHxx 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.
SHxx DTC codes
Map Decoder holds 249 diagnostic trouble codes for the SHxx. Each entry stores the address and the byte values measured on a real file.
P0016P0030P0034P0035P0047P0048P004CP004DP0072P0073P0079P007BP007CP007DP0080P0087P0088P0089P0093P0096P0097P0098P009BP009F
Other SH ECUs
- Denso SH051,442 DTC
Denso SHxx — frequently asked questions
What is the Denso SHxx?
The SHxx is an engine control unit produced by Denso, part of the SH generation. It is used in Mazda vehicles.
Can Map Decoder identify maps in SHxx 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.
Does Map Decoder support DTC removal on the SHxx?
Yes. 249 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 SHxx 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 Denso SHxx files
Map Decoder analyses Denso SHxx files, detects the maps and generates a verified patch with the checksum corrected.