Solution to the ignition failure of vehicles caused by low voltage
1. Press the horn and the headlights are on. A screwdriver or wire is used to test the ignition on the “-†terminal of the ignition coil. If there is no fire, the ignition coil is connected to the ammeter to open circuit. According to the ignition coil "switch" -> ignition coil "switch - power supply" terminal -> ignition switch -> current test sequence of the fire, according to the fire and no fire to diagnose the location of the fault. If the connection between the terminal and the wire is not strong or the connection is poor, the terminal should be cleaned and the fixing nut tightened. If the wire is broken, replace the wire. The replaced wire should be the same as the original wire.
2. The horn does not sound, and the headlights are off. Test the fire on the starter binding post with a wire. If there is a fire, the fault is the open circuit between the starter terminal and the ammeter. If there is no fire, the fault is the battery power shortage or its line fault. The battery power is insufficient and should be charged; the line is open circuited and should be reconnected.
3. Test the fire with the screwdriver on the “-†terminal of the ignition coil. If there is a fire, test the fire between the contact arm and the bottom plate of the distributor. If there is a fire, contact failure (such as contact ablation, dirty, can not be closed, etc.), can be used "Platinum sand bar" repair contact and adjust the contact gap to eliminate the fault. If there is no fire, go to the next step.
4. Test the fire at distributor insulation post and distributor shell. If there is no fire, it is the disconnection fault between the distributor insulation post and the ignition coil “-†connection post; if there is a fire, the insulation bracket is up to Broken wire between insulation posts. If the terminal is in poor contact with the wire and the power is off, clean the terminal and the wire head. If the wire is broken, replace the wire with the wire of the same specification.
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