Oldsmobile 13500126 RELAY ASM,WSW MOT *BLACK

The relays are used in the vehicle for transmitting electrical signals to components such as fuel injection system, horns, starter and fog lamps. In a relay, there is a control circuit that opens and closes a power circuit with low current and high current respectively. If a relay becomes defective, its related component will not function properly. Many relays are usually located in engine compartments including interior fuse/relay boxes while other models have their fuse blocks or electrical centers under the rear seat or in the trunk. Follow these procedures to remove and test suspected faulty relays or have them evaluated by a dealer service department or repair shop. It is necessary to replace faulty relays with complete units. Most of these vehicles use relays that meet "ISO" relay type standards which are identified by numbered terminals showing their usual circuits' connections and functions. These relays have two main terminal layouts. Two of the relay terminals serve as the control circuit and connect to the relay coil, while the remaining terminals function as the power circuit. When energized, the coil generates a magnetic field that closes the large contacts of the power circuit supplying power to the loads in this circuit. Usually, terminals 85 and 86 are used as control circuits with terminal 86 connected to battery positive (B+) voltage when it has diode while terminal 85 grounded on some applications. For relays containing a resistor, terminals 85 and 86 can be connected in either direction concerning B+ and ground. Terminal 30 is generally connected to battery voltage (B+) source for circuit loads; whereas terminal 87 connects to downstream path of controlled component's circuitry. Those few types having several alternative load or ground connections may often be labeled as 87A, 87B, 87C etcetera. To determine if continuity exists throughout the entire relay control coil an ohmmeter should be used. During testing it is important to follow polarity indicated within the illustration, reversing the ohmmeter leads to check continuity in the other direction. A relay that contains a resistor should have consistent resistance in either direction, whereas a diode would demonstrate high resistance when its applied polarity is opposite to the reverse polarity. In case the ohmmeter registers infinite resistance in both directions then replace the relay. Furthermore, the vehicle's relay can be taken out of it and continuity tested between its power circuit terminals where terminal 30 and 87 should not show any continuity if the relay is de-energized. If correct fused jumper wires are connected to terminal 86 and 85 and from positive battery terminal to ground respectively, then there must be clicking sound at this relay. By placing these jumper wires across power circuit terminals, one can test for continuity using continuity tester between terminals 30 and 87.Within these tests, if relay fails it should be replaced as necessary.

Several electrical accessories in a vehicle, such as the fuel injection system, horns, starter, and fog lamps, use relays to transmit the electrical signal to the component. Relays have a control circuit and a power circuit, and if a relay is defective, the corresponding component will not operate properly. Most relays are located in the engine compartment fuse/relay box, with some specialized relays found above the interior fuse box in the console. To test a relay, it can be removed and checked for continuity using an ohmmeter. The terminals of ISO relays, commonly used in these vehicles, are numbered to indicate their circuit connections and functions. Terminal 85 and 86 are typically the control circuit, with terminal 30 connected to the battery voltage source and terminal 87 connected to the component being powered. If the relay contains a diode or resistor, specific polarity and resistance values should be observed. If the relay fails any of the tests, it should be replaced.

In the vehicle, various electrical accessories such as the fuel injection system, horns, starter, and fog lamps utilize relays to transmit electrical signals to their respective components. Relays work by using a low-current control circuit to open and close a high-current power circuit, enabling the proper operation of these components. Most relays can be found in the engine compartment and interior fuse/relay boxes. If a faulty relay is suspected, it can be tested using the following procedure or taken to a dealer service department or repair shop for evaluation. The relays used in these vehicles are typically ISO relays, adhering to International Standards Organization standards. They have numbered terminals indicating their circuit connections and functions. Two of the relay terminals are for the control circuit, connecting to the relay coil, while the other terminals serve as the power circuit. When energized, the relay's coil creates a magnetic field that closes the larger contacts of the power circuit, providing power to the circuit loads. Terminal 85 and 86 are usually the control circuit, with terminal 86 connected to battery positive (B+) voltage and terminal 85 to ground in relays with diode terminals. If the relay contains a resistor, terminals 85 and 86 can be connected in either direction with respect to B+ and ground. Terminal 30 is typically connected to the battery voltage source (B+) for the circuit loads, and terminal 87 is connected to the ground side of the circuit, either directly or through a load. Relays may have additional terminals, such as 87A, 87B, 87C, etc., for alternate load or ground connections. To test the relay, use an ohmmeter to check continuity through the relay control coil and ensure resistance matches the expected value. If the relay fails the tests or shows infinite resistance, it should be replaced. Additionally, when testing the relay's power circuit terminals, there should be no continuity between terminals 30 and 87 with the relay de-energized, but there should be continuity when the relay is energized using jumper wires. If any of the tests indicate a failure, the relay should be replaced.

The relays used in vehicles are typically ISO relays, adhering to International Standards Organization standards.

There should be no continuity between terminal 30 and 87 when the relay is de-energized.

Typically, relays are mounted in the engine compartment and in the interior fuse and relay boxes.

Terminals 85 and 86 typically serve as the control circuit, with specific connections required if a diode or resistor is present.

Two of the relay terminals serve as the control circuit and connect to the relay coil, while the remaining terminals function as the power circuit.

Several electrical accessories in a vehicle that use relays include the fuel injection system, horns, starter, and fog lamps.

If a relay is faulty, the corresponding component will not function properly.

Terminal 30 in a relay is connected to the battery voltage source.

Most relays are located in the engine compartment fuse/relay box.

Several electrical accessories in the vehicle, including the fuel injection system, horns, starter, and fog lamps, utilize relays to transmit electrical signals to the components.

Relays are used in a vehicle's electrical system to facilitate the transmission of electrical signals, allowing low-current control circuits to open and close high-current power circuits. They help control various components like the fuel injection system, horns, starter, and fog lamps.

If a resistor is present, resistance should be the same value in either direction. If a diode is present, resistance should be higher in the forward polarity direction. Infinite resistance in both directions indicates that the relay should be replaced.

Relays operate by using a low-current circuit, known as the control circuit, to open and close a high-current circuit, referred to as the power circuit.

The wiring diagram for the circuit can help determine the proper connections for testing.

After removing the relay, continuity should be checked between the power circuit terminals, confirming no continuity between terminal 30 and 87 when de-energized.

If a relay is faulty, the corresponding component will not function properly.

Relays use a low-current control circuit to open and close a high-current power circuit.

Terminal 30 usually connects to the battery voltage source for circuit loads, and terminal 87 connects to the component being powered, with additional terminals numbered 87A, 87B, and so on for alternate connections.

Continuity through the relay control coil can be checked using an ohmmeter.

Various relays are grouped in different locations, with some located in the convenience center under the right side of the dashboard behind the sound insulator panel, while later models have this center under the left side of the instrument panel.

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

Relays are used to transmit the electrical signal to various electrical accessories in a vehicle, such as the fuel injection system, horns, starter, and fog lamps.

If a faulty relay is suspected, it can be removed and tested through a specific procedure or by a dealer service department or repair shop. Defective relays must be replaced as a unit.

In relays with diode terminals, terminal 85 and 86 are usually the control circuit, with terminal 86 connected to battery positive (B+) voltage and terminal 85 to ground. If the relay contains a resistor, terminals 85 and 86 can be connected in either direction with respect to B+ and ground.

Relays use a low-current control circuit to open and close a high-current power circuit.

When using an ohmmeter to test the continuity of a relay's control coil, one should ensure proper polarity during testing. Resistance should remain consistent regardless of the ohmmeter leads' polarity. Infinite resistance in both directions indicates the need for relay replacement.

These relays are typically grouped together in various locations, including the engine compartment.

Relays employ a low-current control circuit to manage a high-current power circuit.

If the relay fails any of these tests, it should be replaced.

Several electrical accessories in the vehicle, such as the fuel injection system, horns, starter, and fog lamps, utilize relays to transmit electrical signals to components.