Standard Ignition RY-193 Computer Control Relay

Computer Control Relay for Dodge and Chrysler Applications

Standard Ignition RY-193 is a 12-volt computer control relay built for underhood electrical systems that need reliable switching performance. It uses a 4-blade terminal layout with a rectangular female connector and 30 amp rating, making it a direct-fit service part for a range of Dodge, Chrysler, and Plymouth vehicles from the late 1980s through the mid-1990s.

Fits 1989-1995 Dodge Dakota, 1989-1991 Dodge Caravan, 1989-1991 Dodge Grand Caravan, 1989-1991 Dodge D150, 1990-1993 Dodge D250, 1990-1993 Dodge D350, 1990-1993 Dodge Ramcharger, 1990-1993 Dodge W150, 1990-1993 Dodge W250, 1990-1993 Dodge W350, 1991-1992 Chrysler Town & Country, 1989-1991 Chrysler Town & Country, 1989-1991 Plymouth Grand Voyager, and 1989-1991 Plymouth Voyager. It also fits 1994-1995 Dodge Ram 1500, Ram 2500, and Ram 3500.

Key Features

• Standard Ignition RY-193 computer control relay
• 12-volt electrical relay with 30 amp amperage rating
• Female rectangular connector with 1 connector cavity
• 4 male blade terminals for vehicle-specific connection
• Composite housing built for harsh temperature and underhood exposure
• Brass or copper contacts used where specified for wear resistance
• Manufactured under TS16949 and ISO9001 certified processes

Detailed Description

RY-193 is a computer control relay used in vehicle electrical and HVAC-related circuits where a switched signal is required. Standard Ignition builds this relay with a composite housing to help protect internal components from severe underhood conditions, and uses brass or copper contacts where specified to support long-term electrical contact performance. The part is manufactured under controlled quality processes so the replacement matches the intended vehicle application.

This relay is a practical replacement for Dodge Ram 1500, Ram 2500, and Ram 3500 models, as well as multiple Dakota, Caravan, Ramcharger, and Chrysler Town & Country applications. If you are diagnosing intermittent relay operation, a no-start electrical issue, or a circuit that is not switching correctly, Standard Ignition RY-193 provides a direct service option for the original relay location.

This part cross-references Davico Mfg 19238 for the same application.

Common Problems This Relay Can Address

• Intermittent relay switching in the electrical system
• HVAC or accessory circuit failure caused by a worn relay
• Electrical contact wear from heat and repeated cycling
• Connector-related relay replacement on aging Dodge and Chrysler vehicles
• Loss of circuit control in late-1980s and early-1990s truck and van platforms

Installation Notes and Tips

• Verify the connector shape, terminal count, and 12-volt specification before installation.
• Confirm the vehicle application by year, make, model, and notes such as without air conditioning or with bracket/skirt where listed.
• Inspect the relay socket and terminals for heat damage, corrosion, or looseness before installing the replacement.
• Match the original relay location and circuit function to avoid misdiagnosis.

Quality Assurance

Standard Ignition manufactures this relay under TS16949 and ISO9001 certified quality systems, with process control from component selection through finished product. The composite housing and specified contact materials are selected to support dependable electrical service in demanding underhood environments.