Where is the assembly line data link on a Chevy?

Open your Chevrolet’s driver’s side door and find the Assembly Line Data Link. The ALDL, for all General Motors vehicles, will be found directly below the steering column, in the center of the dash’s underside. Run a length of jumper wire between the ALDL’s “A” and “B” ports.

What is the assembly line diagnostic link system?

Assembly Line Diagnostic Link or ALDL is a proprietary on-board diagnostics system developed by General Motors before the standardization of OBD-2.

What happens in the assembly line for General Motors?

At a New York State factory where General Motors builds engines, a new kind of smart bolt collects data during manufacturing to help the automaker cut mistakes. Engines are complicated, and a lot can potentially go wrong during assembly—malfunctioning machines, faulty parts, and, of course, human error.

Where is the ALDL connector on a C4 Corvette?

1984 through 1993 model C4 Corvettes via the 12 pin ALDL connector located under the dash just to the right of the steering column. 1994 and 1995 C4s also had the OBD-I system but used a 16 pin access connector that would become standard for the OBD-II system

Assembly Line Diagnostic Link or ALDL is a proprietary on-board diagnostics system developed by General Motors before the standardization of OBD-2.

What is the ALDL connector on a GM OBD-I?

GM used its own proprietary communication method for communicating with its ECU’s. Each GM OBD-I automobile has a connector that is called the Assembly Line Diagnostic Link (ALDL) connector seen in Figure 4 which is wired to the ECU.