2. Check the condition of all wires and connections.
3. Be convinced of ignition of a control lamp after inclusion of ignition.
4. If the lamp does not light, then check the lamp. To do this, disconnect the wire from the SL terminal on the generator, and connect the L terminal to ground. Turn the ignition on and if the lamp still does not light up, then the lamp or wiring is faulty.
If the lamp lights up, then either the generator or the voltage regulator is faulty. Connect the wire to the SL terminal and connect the brushes to ground (photo, see below) If at the included ignition the control lamp lights up, the regulator is faulty, otherwise the generator is faulty. Replace defective unit.
14.4 Fixing the brushes with a piece of wire
5. If at inclusion of ignition the control lamp lights up, start the engine and transfer to idling. The lamp should go out. Otherwise, replace the generator.
6. Bring the speed to 1500 rpm and turn on the headlights. If the test lamp glows dimly, then check the voltage between terminals B and L of the generator.
If the voltage is less than 0.5 V, then replace the generator.
If the control lamp does not light when the headlights are on, then check the voltage at terminal B without reducing the engine speed (make sure the connection to terminal S is correct).
If the voltage exceeds 15.5 V, then replace the voltage regulator.
7. If at inclusion of headlights on idling the control lamp lights up, replace the generator.