Standard Ignition SC603 Vehicle Speed Sensor

Vehicle Speed Sensor for Volkswagen and Audi

Standard Ignition SC603 is a vehicle speed sensor built for direct-fit service on select Volkswagen and Audi applications. It uses a female plug-in connector with a rectangular shape, male blade terminals, and an O-ring sealed base to support a secure electrical and mechanical connection.

Fits 1993-1999 Volkswagen Golf, w/ Wire; Fits 1993-1999 Volkswagen Jetta, w/ Wire; Fits 1996-1998 Volkswagen Cabrio, w/ Wire; Fits 1998 Volkswagen Beetle, For vehicles with wire connections; Fits 1998-2004 Audi A3; Fits 1999 Volkswagen Beetle, w/ Wire; Fits 2000-2002 Volkswagen Cabrio, w/ Wire; Fits 2005 Volkswagen Beetle.

Key Features

• Standard Ignition SC603 vehicle speed sensor
• Transmission input and output sensor contents
• Female connector with one rectangular plug-in connection
• 3 male blade terminals for electrical interface
• O-ring sealed base for a tighter transmission seal
• Direct-fit replacement for select Volkswagen Beetle, Golf, Jetta, Cabrio, and Audi A3 applications

Detailed Description

Standard Ignition SC603 is a transmission speed sensing component used to monitor vehicle speed signals from the transmission input and output circuit. The connector design, terminal layout, and sealed base support OE-style replacement service on vehicles that use a wire-connected sensor arrangement. This part cross-references 01M927321 and SN8305 for the same application.

For Volkswagen Golf and Volkswagen Jetta models from 1993-1999 with wire connections, as well as Volkswagen Cabrio, Volkswagen Beetle, and Audi A3 applications listed above, SC603 provides a service replacement that matches the required connector style and terminal configuration. The part number SC603 is also commonly searched as a replacement vehicle speed sensor for these import applications.

What It Helps Solve

• Erratic or inaccurate speedometer readings
• Transmission shift concerns related to missing speed signal
• Stored speed sensor fault codes
• Intermittent transmission input or output signal loss
• Driveability issues caused by incorrect vehicle speed data

Installation Notes and Tips

Verify the connector style, terminal count, and wire-connected application before installation. Inspect the O-ring sealing surface and the transmission mounting area for wear, contamination, or damage before fitting the sensor. Confirm the vehicle application by year, make, model, and wiring configuration to ensure the SC603 matches the original sensor location and electrical connection.

Quality Assurance

Standard Ignition is a recognized aftermarket brand for electrical and engine management service parts. SC603 is built to match the specified connector, terminal, and sealing requirements for the listed Volkswagen and Audi applications.