Jaltest (JDC402A) | Volkswagen 2+2-pins OBD1 - 16-pins OBD2 Adapter Cable | Van

The Jaltest JDC402A is a unique and indispensable adapter cable for workshops servicing a specific generation of older vehicles from the Volkswagen Group (VAG). This adapter is the only solution to connect the separate 2+2-pin diagnostic connectors (one for power, one for data) to the modern 16-pin OBD2 port of the Jaltest main cable.

This dual connector was typical for VAG models from the early 1990s, just before the universal introduction of the OBD2 standard. The JDC402A combines these two separate plugs into a single OBD2 connector, making it possible to communicate with the electronics of these classics using modern diagnostic equipment. The cable is robustly built for reliable and repeated use in professional workshops.

Application and functionality:

• Access to the ECU: connection to engine management and sometimes ABS systems.
• Reading and clearing fault codes: reading early VAG fault codes (blinking codes) and clearing after repair.
• Basic settings and live data: checking basic settings and viewing limited live data such as sensor signals and component status.
• Actuator tests: performing tests on specific components, such as throttle or idle control (if supported).

Suitable vehicles and applications:

This cable can be used on a range of Vans and passenger cars from the Volkswagen Audi Group (VAG) from a specific time period.

• Suitable Brands:
  • Volkswagen
  • Audi
  • SEAT
  • Škoda
• Specific examples (Vans):
  • Volkswagen Transporter (T4) - early models
  • Volkswagen Caddy (MK2) - early models
• Time period: Mainly for vehicles built from around 1990 to 1996.
• Connector requirement: The vehicle must be equipped with the two separate 2-pin diagnostic connectors. These are often located near the fuse box.

Package Contents:

• 1x Jaltest (JDC402A) | Volkswagen 2+2-pin OBD1 - 16-pin OBD2 adapter cable

Technical specifications: