Saab 9-3 Tools

Free diagnostic and reverse engineering tools for Saab 9-3 II (9440) owners, mechanics, and enthusiasts.

CIM EEPROM Tool

Upload a 93C66 EEPROM dump from your CIM (Column Integration Module) and instantly decode PIN code, VIN, transponder keys, ISK, PSK, configuration flags, and DTC error history.

  • PIN + VIN readout with database verification
  • Full immobilizer key management (ISK, PSK, 5 key slots)
  • Configuration coding (cruise control, rain sensor, ESP, facelift)
  • Repair corrupted blocks via mirror restore or CRC recalculation
  • Virginise, set VIN+PIN, clear DTC
  • Interactive hex viewer with EEPROM structure map
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Tech2 Card Manager

Connect your Tech2 over a serial cable straight from the browser and manage its PCMCIA card without any Windows-only utilities.

  • Get Security Access (SSA) — unlock advanced programming features
  • Backup the full card contents to a .bin file
  • Write a card image — restore from backup or flash a new one
  • Restore SSA sector if a write failed
  • Protocol Explorer for testing commands and reverse engineering
  • Works in Chrome / Edge via Web Serial
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Tech2 SWDL Browser

Browse the GM TIS2Web SWDL export for the Saab Tech2 diagnostic tool — every software-download version (44.000 → 148.000) and all UI languages.

  • Browse available firmware versions and languages
  • Hex preview of individual card files
  • Download the decompressed files as a ZIP
  • Build a ready-to-flash PCMCIA card image (.bin)
  • Files placed at their correct flash addresses (header + ToC included)
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CIM Live Tool

Connect your Microwire EEPROM emulator/sniffer directly from the browser using Web Serial. Read, write, and monitor CIM EEPROM in real-time without file transfers.

  • Live Microwire bus sniffer with transaction timeline and labels
  • Direct EEPROM read/write via USB (no file upload needed)
  • Address activity heatmap and EEPROM diff snapshots
  • Module profiles with known address annotations (CIM, ...)
  • Export capture to Markdown for LLM analysis
  • Works with SAAB Microwire Tool (ESP32-C3)
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What is CIM?

The Column Integration Module is the central control unit on the steering column of Saab 9-3 II (2003-2011). It manages the ignition, immobilizer, key recognition, remote control receiver, steering column lock, indicator/wiper stalks, cruise control, and optional steering angle sensor.

Why do you need these tools?

CIM failures are common in aging Saab 9-3 vehicles. A faulty CIM means no start, lost keys, or forgotten PIN code. These tools let you read the EEPROM data directly, recover PIN codes, reprogram keys, and transplant a replacement CIM to your vehicle.

How to read the EEPROM?

The CIM uses a 93C66 EEPROM (512 bytes, Microwire protocol, SOIC-8 package). Read it with a TL866II Plus programmer and SOIC-8 clip (in-circuit or desoldered), or use our open-source Microwire emulator/sniffer for advanced diagnostics.