Ford F19Z-9345-A Relay

When transmitting the electrical signal to the component, several electrical accessories in the vehicle are using relays. The defective relay leads to a malfunctioning component. These different relays are grouped at various places. In case of suspicion of a faulty relay, it can be removed and checked by a dealer service department or repair shop. Malfunctional relays must be changed as an assembly.

Most relays are marked on the outside to easily identify the control circuits and the power circuits.

Most relays are marked on the outside to help identify the control and power circuits. Additionally, two of the terminals are typically the relay's control circuit, and the other terminals are the power circuit. The relay's marking and the wiring diagram for the circuit can aid in determining the correct hook-ups for testing.

If a faulty relay is suspected, it can be removed and tested by a dealer service department or a repair shop.

Relays are used in a vehicle's electrical system to transmit electrical signals to various components, such as the fuel injection system, horns, starter, and fog lamps. They use a low-current control circuit to open and close a high-current power circuit, allowing these components to operate properly.

Remove the relay from the vehicle and use the ohmmeter to check for continuity between the relay power circuit terminals. There should be no continuity between terminal 30 and 87 with the relay de-energized.

Remove the relay from the vehicle and check for continuity between the relay power circuit terminals. There should be no continuity between terminal 30 and 87.

If you're not able to determine the correct hookup from the wiring diagrams, you may be able to determine the test hookups from the information provided.

The relays are marked as an aid to help you determine which terminals are the control circuit and which are the power circuit. Most relays are marked on the outside to easily identify the control and power circuits.