The Intelligent System Scan (ISS) function is fully operational in this version, allowing for a comprehensive health check of all vehicle ECUs with a few clicks.
: Newer software requires modern processors; older units with the Infineon C167 chip (identifiable by a gold-colored case with an external antenna) are not supported .
While the industry moves toward cloud-based subscriptions (like JPRO or Dealer-level software), the Delphi C4b remains the last great "offline heavyweight." It does not require an annual subscription. It does not phone home to a server. You buy it, you own it. Delphi Autocom 2021.11 C4b High Quality
Disclaimer: This article is for informational purposes regarding hardware comparisons. Users are responsible for complying with local software licensing laws.
Click to check the connection. If the software prompts you, click Update Firmware to synchronize your C4b hardware with the 1622 (Cars) or 1624 (Trucks) database. Hardware Comparison Matrix Hardware Attribute Standard Clone (Low Quality) C4b High-Quality Revision Mainboard PCB Layout Dual-board (green/blue) Single-board or premium dual-board Relay Quality Generic unbranded relays Premium NEC or GE white relays Voltage Limits 12V only (prone to burning) 12V/24V dual support for trucks Ford/BMW J1850 PWM Frequently fails to connect Fully operational Firmware Upgradability High risk of bricking the device Completely safe via USB connection Troubleshooting Common Errors The Intelligent System Scan (ISS) function is fully
Open Autocom, go to , choose your COM port, and click Test .
Load the activated file back into the software interface to unlock complete car and truck databases. Step 4: Firmware Updates It does not phone home to a server
Comparisons (concise)
Aftermarket diagnostic tools use custom keygens or activation files that Windows Defender frequently misidentifies as "false positives." Temporarily disable real-time protection before downloading or extracting.
: Supports critical maintenance tasks like service light resets, SAS (Steering Angle Sensor) calibration, and electronic parking brake retraction.
: Includes high-grade 9241A chips to provide flawless communication across K-Line networks on older vehicles.