Standard Ignition RY-389 Engine Control Module Relay

Engine Control Relay for Select Ford and Mazda Applications

Standard Ignition RY-389 is a 12-volt engine control module relay with a 10 amp rating, female connector, and 5 male blade terminals. It includes a mounting bracket and is built for vehicles that use a fuel pump relay function in the engine control circuit.

Key Features

• Part number: RY-389
• 12 V relay with 10 A amperage rating
• Female connector with 1 rectangular connector
• 5 male blade terminals for the specified application
• Mounting bracket included
• Functions as a fuel pump relay
• Standard Ignition replacement for select import and domestic vehicles

Product Details

This Standard Ignition RY-389 relay is used in engine control and fuel pump relay circuits where the vehicle calls for a 5-blade terminal layout. It cross-references Four Seasons 20087 for the same application. Vehicle coverage includes select Ford Escort, Ford Probe, Ford Festiva, Mercury Tracer, Mercury Capri, Mazda 323, Mazda 626, Mazda MX-6, Mazda Miata, Mazda RX-7, Mazda B2000, Mazda B2200, Mazda B2600, Mazda MPV, Mazda Protege, and Kia Sephia applications. For buyers searching for a Ford Probe fuel pump relay or a Mazda Miata ECM relay, RY-389 is the direct part number to verify against the original unit.

Common Problems This Relay Can Address

• No-start condition caused by a failed fuel pump relay
• Intermittent fuel delivery from worn relay contacts
• Engine control circuit faults related to relay switching
• Electrical connection issues from damaged terminals or connector housing
• Replacement needs for vehicles using the specified 5-blade relay layout

Installation Notes and Tips

Confirm the connector shape, terminal count, and terminal style before installation. This relay uses a female rectangular connector with 5 male blade terminals, so it should be matched to the original relay configuration on the vehicle. Verify the application by year, make, model, and relay function before replacing the part. Fits 1990-1992 Ford Probe, 1986-1995 Mazda 323, 1990-1993 Mazda Miata, and other listed Ford, Mercury, Mazda, and Kia applications.

Quality Assurance

Standard Ignition supplies this relay as an OE-style electrical replacement for the listed applications. The RY-389 is built to the stated voltage, amperage, connector, and terminal specifications so it can be matched accurately to the original relay design.