After current passes through the sucking coil and holding coil, as the current direction is identical, the magnetic field is superimposed, the iron core will be sucked in. Then twist the ends 1 and 2 of the two coils together, and weld starting end 4 of the thin coil on the iron plate (see right image b). Based on the inspections above, solenoids with poor or unqualified performance should be repaired or replaced. In the starting system with an electronic-controlled engine, the ground terminal of the starter relay coil is connected to the neutral position of the ignition switch (cars with automatic transmission can only start the engine in the position P & N ) or the interlock switch of the clutch, as shown in the left Fig. The current of the starter is large in operating and terminal B and terminal M will overheat because of that. To ensure that the starter can stall automatically and the starter circuit not connected after the engine starts, some cars adopt the compound relay circuit with safety driving protection. A detailed electrical diagram of the starter solenoid is shown below. After turning the ignition switch to the start position, the circuit of the starter relay coil will be conductive, and the electric current direction is as below: After turning the ignition switch to the start position, the circuit of the starter relay coil will be conductive, and the electric current direction is as below: car battery anode >  ignition switch terminal 1 >  ignition switch terminal 3 >  starter relay terminal (The one use to connect to ignition switch) >  coil ground wire >  car battery cathode. Look up some examples or take a look at the OEM wiring diagram and use what you need to get it started. Starter Solenoid Sucking Coil Test Instruction. Having an older GM car the starter and solenoid are next to exhaust causing the hot start problems. 4 Pole Starter Solenoid Wiring Diagram. The switch part of starter solenoid is composed of a main contact plate and contacts. “Do you know how to replace it?” A wiring diagram is a simplified traditional photographic representation of an electric circuit. In most cases, the stuck issue is caused by the bad spring. The typical starting system wiring diagrams can divide into non-relay control type, single starter relay control type, and security starter relay control type. Dismount the terminal of the cable of the car battery anode from the starter. The starter solenoid has four common problems: 1) The suction fails occasionally, or works in engine cooling only and fails in engine warming up. Install the new starter solenoid according to the reverse procedure of removing the solenoid. 16. below. Normally, when the battery terminal negative is disengaged, the drive gear should reverse rapidly. ), replace the solenoid. When the ignition switch turns to the START position, the battery current flows to the sucking coil and hold coil. From how does it work in a starter to starter solenoid troubleshooting, from how to repair it by yourself to manufacturing solution…, Single Starter Relay Car Starter Wiring Diagram, https://startersolenoid.net/wp-content/uploads/2017/02/tx-logo1.png, https://startersolenoid.net/wp-content/uploads/2017/06/3-typical-car-starting-system-diagram.jpg, 3 Differences Between Starter Solenoid Switch & Starter Relay, 5 Essential Factors to Consider in Choosing Solenoid Valve, 5 Practical Ways to Troubleshoot a Solenoid Valve, 5 Types of Solenoid Valve and their Working Principle. Hence, before learning how to wire a starter solenoid, the starter’s wiring should be studied. The working circuit of the starter can be activated after the ignition switch is on. If the solenoid switch got some issues when you are driving, you could use a lead wire to make an emergency starting circuit. I jumpered the brown wire and got a spark but it did not pull in the solenoid to cause the starter to run. When the starter drive gear is stationary and stays in the engaged position, cut off the solenoid power supply. Does it matter which of the big posts the battery and the starter connect to? The starting system circuit without starter relay set in is shown in Fig. “Do you know……”. Common starting system problems, testing. The starter relay is another switch that is used to control the starting circuit. To check that the solenoid is working, listen to it while a helper works the starter switch. When the main contact point of the plate close, no current flows through the sucking coil. Firstly, let’s check the of the starting system circuit, the wiring diagram as shown in the Fig. Description: Replacing The Solenoid In The Electric Start Snapper Riding Mower regarding Snapper Rear Engine Rider Wiring Diagram, image size 480 X 360 px, and to view image details please click the image.. Sometimes the starter could not rotate, or the rotate speed is low after switch on (brightness of the headlamp is fine), and when the starter stop to rotate, there is strange chugging noise near the starter motor, it indicated that the starter solenoid switch got a problem. If not, the arrangement will not function as it should be. Disconnect the car battery negative cable. If the resistance is lower than the specified value, the coil has a fault of turn-to-turn short circuit. A set of wiring diagrams may be required by the electrical inspection authority to take on membership of the domicile to the public electrical supply system. Step 1. “No.” The electric current divides into two streams flowing through the Starter Solenoid: A ). To help tie everything together, we made a checklist to help you remember what we’ve learned from the guide. If not, the arrangement won’t function as it ought to be. 2) When starting up, the starter solenoid can not reset. The sequence of events that happens in the standard GM when you hit the starter is as follows; The starter solenoid prices are differed by different models, quality, and manufacturers. A wiring diagram is a streamlined standard pictorial representation of an electrical circuit. As shown in the following picture. Unscrew the two nuts that fix the solenoid to the shell of the starter Bendix drive and remove the solenoid. The battery anode (+) is connected to terminal 30 of the starter via the black wiring. 2. In this point, since the magnetic force formed by the sucking coil and the holding coil neutralize each other, they lose the force to hold the movable core. After the engine starts, the neutral tap (N) terminal post of the car alternator outputs proper voltage, which acts on the charge light relay coil and cut-off the current of the starter relay. Car battery anode(+), ignition switch start gear, terminal 50, sucking coil, terminal C, field winding, armature winding, ground wire, car battery cathode(-), Meanwhile, the current direction that passes through the holding coil is as below: In the end, remember to retest the starter solenoid after fixing starter solenoid. Also, remember to use a spring washer when installing the bolt. A car wiring diagram is a map. Step 10. (1) Seal off the soldering tin on the connection strap of the switch cap and remove the switch cap. Starter contactors offered by B&C and ourselves have coil resistances of about 4 ohms. I checked the battery and cables, everything was clean and hooked up correctly. They were used in some GM powered motor homes: [] Original GM wiring configuratioThe battery wire to the solenoid in the stock configuration is hot at all times. Thus the starter solenoid switch will turn on. Recently I asked our engineers a few questions about the starter solenoid: “Do you know what is the symptoms of a bad starter solenoid?” The following content is for reference only to those with certain experience. We do not recommend non-professionals repair the switches by themselves. So remember to use a spanner to tighten the terminal nuts while you are maintaining your starter solenoid. Use the R1(Resistance) scale of the multimeter to measure the resistance of the pull-in coil and the holding coil of the solenoid, and the resistance value shall be same with the starter solenoid specification. ), replace the solenoid. 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