The fuel injection system,
Horns, starter, and fog lams along with many other features passing electricity in the vehicle come with relays. Relays work in such a way that a low current control circuit is used to open and close a high current power circuit. Malfunctioning relays will render a linked component useless and while most relays are in the engine box fuse and relay compartment, some are near the passenger box fuse that can only be seen after moving the knee bolster. If it is assumed that the relay is faulty then it can be pulled out forPossible tests or taken to a dealer service department because relay cannot be rebuilt and it has to be substituted. Relay that is commonly used in these vehicles is normally an NO relay. By tracing the schematic of the obtained apparatus and comparing it to the intended circuit, the correct connections for testing can be made. There are two terminals reading the relay control circuit and the other two joining the relay coil; the other two form the power circuit. When energized the coil creates a magnetic field heavy enough to close the extra large contacts of the power circuit supplying powers to the loads of the circuit. To inspect the relay that is normally open, it is necessary to make a measurement with the ohmmeter without connection and with connection of the terminals No. 3 and No. 4 to the power and the ground, respectively, with the check on the terminals No. 1 and No. 2. However, if the relay will not jump this test, then it will have to be replaced.