Excuse me, where is the main relay and what does the main relay line fault mean

Check the fault**There is a fault of the control solenoid valve and hydraulic pump, you should suspect that there is a problem with the fuse, and check the power supply of the ECU. The flashing of the ABS light is mostly caused by the fact that the ABS self-diagnosis excitation interface has been plugged into the fuse, so that the ABS has entered the self-diagnosis state. Inspect the wiring of the terminal from the ECU to see if there is a tie in the wire.

Look along the line to see if the wire at the relay box is worn out and tie the iron. Check that the speed sensor of each tire is dirty or the plug must be connected; The ABS control unit is faulty or the line must be connected; The ABS system was not matched by a computer after a crash; The tire speed sensor ring gear is damaged. It is also possible that when the vehicle is driving in rainy weather, due to the muddy water, dust, raindrops, etc. splashed on the chassis and other places, resulting in adhesion and barrier effect, the ABS sensor and the connected magnetic induction coil have poor conduction, resulting in the failure of the ABS during the self-test, and the warning light is on.

It is recommended that you check according to the above.

Poussin does not live the relay There is only one X electrocution relay In the relay box No. 8 The No. 17 relay is the relay of the X-ray Line 15 does not have a relay Directly from the ignition switch Follow-up question: Then please ask what the X-line is, is there a connection point in the middle of the 15th line Back The X-ray is powered when it is turned on to the acc gear The starting ignition is out of power Mainly to give .

Hello, the fault phenomenon of the main relay of the car.

1) The starter does not turn.

1. When the fault phenomenon and cause of the fault start, the starter does not rotate, and the possible fault is as follows:

1) Power failure, serious loss of power of the battery or vulcanization of the plate, short circuit, etc., poor contact between the battery pole pile and the wire clamp, loose connection of the starting circuit wire and the contact does not contain Xianliang, etc.

2) Starter failure.

The commutator is in poor contact with the brush, the excitation winding or armature winding has an open circuit or short circuit, the insulating brush lap iron, the electromagnetic switch coil is broken, short-circuited, lapped or its contact ablation, etc.

3) Starter relay fault: starter relay coil is broken, short-circuited, lapped or its contact contact is poor.

4) Ignition switch failure, ignition switch wiring is loose or internal contact is poor.

5) The starting line is faulty, and there are open circuits, poor wire contact or loose wires in the starting line.

A main relay is a relay that is used in a main circuit.

Relays are usually used in automatic control circuits, and they are actually a kind of "automatic switching" that uses a smaller current to control a larger current. Therefore, it plays the role of automatic adjustment, safety protection, and conversion circuit in the circuit.