{"product_id":"gm-class-2-to-can-converter-kcp-vpw-1","title":"GM Class 2 to CAN Converter – KCP VPW-1","description":"\u003ch2\u003eGM Class 2 to CAN Converter – KCP VPW-1\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eKCP VPW-1 Class 2 to CAN Converter\u003c\/strong\u003e allows you to monitor and log data from the GM Class 2 network (SAE J1850 VPW) using standard CAN logging hardware and software.\u003c\/p\u003e\n\u003cp\u003eGM Class 2 is a single-wire communication network operating at 10.4 kbit\/s, which cannot be read directly by conventional CAN tools. The KCP VPW-1 listens to the Class 2 bus, checks the CRC of every received message and forwards valid messages over CAN using 29-bit extended identifiers derived from the original Class 2 addressing.\u003c\/p\u003e\n\u003cp\u003eThis makes it possible to capture and analyse GM vehicle communication using a wide range of commonly available CAN logging tools. The converter preserves the original message structure without interpreting or modifying the data.\u003c\/p\u003e\n\u003ch3\u003eVehicle Compatibility\u003c\/h3\u003e\n\u003cp\u003eThe KCP VPW-1 is designed for GM North American vehicles using the SAE J1850 VPW (Class 2) communication protocol, generally from 1996 to 2005, with some applications extending to 2007.\u003c\/p\u003e\n\u003cp\u003eCompatible applications include:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eChevrolet Corvette C5 and C6\u003c\/li\u003e\n\u003cli\u003eChevrolet Camaro and Pontiac Firebird with LS1 engines\u003c\/li\u003e\n\u003cli\u003eGM trucks and SUVs\u003c\/li\u003e\n\u003cli\u003eCadillac models from the applicable years\u003c\/li\u003e\n\u003cli\u003eBuick models from the applicable years\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eA quick way to identify the correct communication protocol is to check for the purple Class 2 wire on pin 2 of the OBD2 connector.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNot compatible with:\u003c\/strong\u003e GMLAN vehicles (generally 2007 and newer) or older vehicles using ALDL communication (pre-1996).\u003c\/p\u003e\n\u003ch3\u003eCompatible with Standard CAN Logging Software\u003c\/h3\u003e\n\u003cp\u003eOnce the Class 2 messages have been converted to CAN, you can use your preferred CAN logging and analysis software. The converter is not restricted to a specific brand or software package.\u003c\/p\u003e\n\u003cp\u003eYour CAN interface or logger must support:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e500 kbit\/s CAN communication\u003c\/li\u003e\n\u003cli\u003e29-bit extended CAN identifiers\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe original Class 2 addressing information is retained in the CAN identifier, allowing messages to be grouped and analysed according to their source module and message type.\u003c\/p\u003e\n\u003ch3\u003eComplete Kit – USB-C to CAN Adapter Included\u003c\/h3\u003e\n\u003cp\u003eThe KCP VPW-1 is supplied with a USB-C to CAN adapter, allowing you to connect the converter directly to a laptop and start logging vehicle data.\u003c\/p\u003e\n\u003cp\u003eThe included adapter is based on the STM32F072 processor and uses CANable\/candleLight-compatible firmware. This makes it compatible with a wide range of CAN software on Windows and Linux.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKit contents:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eKCP VPW-1 Class 2 to CAN Converter with trace firmware\u003c\/li\u003e\n\u003cli\u003eOBD2 connection cable (J1962)\u003c\/li\u003e\n\u003cli\u003eUSB-C to CAN adapter (STM32F072, CANable\/candleLight compatible)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eInput protocol: GM Class 2 \/ SAE J1850 VPW\u003c\/li\u003e\n\u003cli\u003eClass 2 bus speed: 10.4 kbit\/s\u003c\/li\u003e\n\u003cli\u003eCAN output speed: 500 kbit\/s\u003c\/li\u003e\n\u003cli\u003eCAN identifiers: 29-bit extended\u003c\/li\u003e\n\u003cli\u003eCRC validation of received messages\u003c\/li\u003e\n\u003cli\u003eReceive-only operation\u003c\/li\u003e\n\u003cli\u003eUSB-C connection to laptop via included CAN adapter\u003c\/li\u003e\n\u003cli\u003eCompatible with various CAN logging and analysis applications\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eImportant Information\u003c\/h3\u003e\n\u003cp\u003eThe KCP VPW-1 is a receive-only interface. It does not transmit messages onto the Class 2 bus and cannot be used to request diagnostic data, read or clear fault codes, or replace missing vehicle modules.\u003c\/p\u003e\n\u003cp\u003eThe converter does not decode vehicle data and is not supplied with a DBC file, channel database or predefined parameter descriptions. Identifying and interpreting the recorded messages is the responsibility of the user.\u003c\/p\u003e\n\u003cp\u003eMessages with payloads longer than six bytes are truncated to six payload bytes. A counter on the USB status output makes this visible.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFirmware:\u003c\/strong\u003e The converter is supplied with calibrated trace firmware. Modifying or reflashing the firmware is not recommended. Reflashed boards are not covered by warranty or technical support.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePCB servicing:\u003c\/strong\u003e The 3.3V pin on the CANduino module has intentionally been removed to ensure correct operation of the receiver. This modification must remain in place. Always refer to the supplied product sheet before carrying out any work on the PCB.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eLimited availability:\u003c\/strong\u003e This is a limited production run. Only four units are available, and this PCB version will not be manufactured again.\u003c\/p\u003e\n\u003ch3\u003eKC Performance – KCP VPW-1\u003c\/h3\u003e\n\u003cp\u003eMake GM Class 2 vehicle communication accessible through standard CAN logging hardware and software.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNote regarding product photos:\u003c\/strong\u003e The last three photos show an example of how we have used and installed the converter in our own application. These additional components and installation parts are for illustration purposes only and are not included in the supplied kit.\u003c\/p\u003e\n\u003cp\u003e```\u003c\/p\u003e","brand":"KCPerformance","offers":[{"title":"Default Title","offer_id":57557485977865,"sku":"KCP-0348","price":199.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0879\/4518\/3497\/files\/WhatsAppImage2026-11-10at10.44.55_1.jpg?v=1794304813","url":"https:\/\/shop.kcperformance.eu\/products\/gm-class-2-to-can-converter-kcp-vpw-1","provider":"KCPerformance","version":"1.0","type":"link"}