Ford E9TZ-11450-B Starter Motor Relay Assy

Some of the electrical accessories in the vehicles which employs the relay includes fuel injection system, horns, starter, fog lamps etc by passing the signals electrically. A relay controls a high current power circuit using a low current control circuit and if the relay is faulty then the required circuit will not function as required. Some of the relays and their locations are easily identified but their functions can be found in the owner's guide. If there is a problem with the relay then the relay can be removed and tested through a relay test procedure or through a dealer service/ repair shop; bad relays are replaced as an assembly. ISO relays are most often used in these vehicles, and their terminals are numbered making the typical connections easy to identify, although there are only two basic terminal arrangements. If the circuit is to be tested, then the wiring diagram of the circuit can well be used to establish proper connections. Two pins are of relay control circuit, used for coupling the relay coil and remaining pins are of the power circuit. When it is supplied with energy the magnetic field thus closes the larger contacts of the power circuit supplying power to the loads. Control circuit is normally held by terminals 85 and 86, and certain connections may be necessary in case the element in question is a diode or resistor. Terminal 30 links to the battery voltage for circuit loads while terminal 87 links to the ground side of the circuit. To check continuity through the relay control coil an ohmmeter should be used and is recommended that testing should be done in two different polarities. Of a resistor value should be same irrespective of whether electrons are passing through it in forward or in reverse direction but in the case of a diode its impedance should be high in one direction rather than the other. Dual direction with infinite resistance calls for relay replacement. After taking out the relay, continuity should be checked at the power circuit terminals; there should be no continuity between terminal 30 and 87 when there is no power. To make the relay click, an individual should link a fused jumper wire between terminal number 86 on the coil and the positive terminal of the battery additionally, use a second jumper wire between terminal number 85 and the ground. With these connections continuity should now be present between terminals 30 and 87. If any of the above tests are not materialized by the relay, then the relay should be replaced.

Several electrical accessories in the vehicle, such as the fuel injection system, horns, starter, and fog lamps, use relays to transmit electrical signals to the components. Relays operate a low-current control circuit to open and close a high-current power circuit, and if a relay is defective, the associated component will not function properly. Various relays are mounted in the engine compartment and throughout the vehicle, and if a faulty relay is suspected, it can be removed and tested or taken to a dealer service department or repair shop, with defective relays needing replacement as a unit. To test a relay, it's helpful to consult the wiring diagram for proper hook-ups; however, if that's not possible, the following information can assist. Most relays have two terminals for the control circuit, which connect to the relay coil that, when energized, closes the large contacts to complete the circuit, while the other terminals are for the power circuit, which connect internally when the control circuit coil is energized. Relays are typically marked to help identify the control and power circuit terminals. To test, remove the relay and check for continuity between the power circuit terminals, ensuring there is no continuity between terminal 30 and 87. Next, connect a fused jumper wire from one control circuit terminal to the positive battery terminal and another from the other control circuit terminal to ground; the relay should click. If it doesn't, polarity may be critical, so swapping the jumper wires may be necessary. With the jumper wires connected, check for continuity between the power circuit terminals, which should now show continuity between terminals 30 and 87. If the relay fails any of these tests, it should be replaced.

Some of the electrical accessories in the vehicles which employs the relay includes fuel injection system, horns, starter, fog lamps etc by passing the signals electrically. A relay controls a high current power circuit using a low current control circuit and if the relay is faulty then the required circuit will not function as required. Some of the relays and their locations are easily identified but their functions can be found in the owner's guide. If there is a problem with the relay then the relay can be removed and tested through a relay test procedure or through a dealer service/ repair shop; bad relays are replaced as an assembly. ISO relays are most often used in these vehicles, and their terminals are numbered making the typical connections easy to identify, although there are only two basic terminal arrangements. If the circuit is to be tested, then the wiring diagram of the circuit can well be used to establish proper connections. Two pins are of relay control circuit, used for coupling the relay coil and remaining pins are of the power circuit. When it is supplied with energy the magnetic field thus closes the larger contacts of the power circuit supplying power to the loads. Control circuit is normally held by terminals 85 and 86, and certain connections may be necessary in case the element in question is a diode or resistor. Terminal 30 links to the battery voltage for circuit loads while terminal 87 links to the ground side of the circuit. To check continuity through the relay control coil an ohmmeter should be used and is recommended that testing should be done in two different polarities. Of a resistor value should be same irrespective of whether electrons are passing through it in forward or in reverse direction but in the case of a diode its impedance should be high in one direction rather than the other. Dual direction with infinite resistance calls for relay replacement. After taking out the relay, continuity should be checked at the power circuit terminals; there should be no continuity between terminal 30 and 87 when there is no power. To make the relay click, an individual should link a fused jumper wire between terminal number 86 on the coil and the positive terminal of the battery additionally, use a second jumper wire between terminal number 85 and the ground. With these connections continuity should now be present between terminals 30 and 87. If any of the above tests are not materialized by the relay, then the relay should be replaced.

Many vehicle accessories utilize relays for transmitting electrical signals. To check if the relay is fine, take it out of the car and test for continuity across the power circuit terminals. Place a fused jumper wire between one control circuit terminal and the positive battery terminal and another jumper wire between the other control circuit terminal and ground. Check for continuity across the power circuit terminals. It requires replacement if any of these tests are failed by the 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.

Many vehicle accessories utilize relays for transmitting electrical signals. To check if the relay is fine, take it out of the car and test for continuity across the power circuit terminals. Place a fused jumper wire between one control circuit terminal and the positive battery terminal and another jumper wire between the other control circuit terminal and ground. Check for continuity across the power circuit terminals. It requires replacement if any of these tests are failed by the 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.

With the jumper wires connected, check for continuity between the power circuit terminals. There should be continuity between terminals 30 and 87.

If a relay is defective, the component it controls will not operate properly.

You can remove the relay and test it using the provided procedure or have it tested by a dealer service department. Defective relays cannot be repaired and must be replaced with a new unit.

The relays are mounted in the engine compartment, specifically in the power distribution box on the left inner fenderwell, and in several locations throughout the vehicle.

If the relay fails any of the above tests, replace it.