This means that the computer is trying to inform you about the detection of a DTC "41", which indicates a problem with the throttle position sensor. If it beeps like Morse code, say, 4 flashes - pause - flash - long pause - 4 flashes - pause - flash. A fast monotonous blinking with a constant frequency indicates that no faults have been detected - everything is in order. For this, we close the contacts E1 and Te1 with a wire (an unbent paper clip) and turn on the ignition without starting the engine. If it continues to burn, it's time to diagnose. After starting the motor, the light must go out. As you know, when the ignition is turned on, the check engine light on the dashboard lights up, or a light with the engine image (which is the same thing). Too loud buzzing indicates the extreme wear of the pump rotor and the imminent death of the unit.Ĭontacts E1, Te1, Te2 are intended for self-diagnosis - not a complicated procedure at all. Measure the resistance on contact Fp relative to ground (ignition off) units of Ohm are expected in the norm. If there is no buzzing, and you are sure of the wiring condition, the pump winding may be broken. At the moment of contact, the first one will hear a low buzzing, which allows hoping for the serviceability of the fuel pump. And as soon as doubts arose in the fuel pump, then do this: one listens in the area of the gas tank (usually under the rear seat cushion), and the other briefly closes the named contacts. What is sometimes useful is when you need to measure the pressure in the fuel line. When the engine is off, close contacts + B and Fp - and the pump will start. When you try to start the engine, 12-14 V should be displayed there.
The regulator built into the generator may be faulty, but this does not happen often.Ĭontact Fp allows you to check the voltage at the fuel pump. At idle, with a working battery and disconnected consumers (stove, air conditioner, headlights, dimensions, radio tape recorder, windows, etc.), a voltage of 14.7 V is permissible.However, if you measured 15 V and higher (with an accurate and serviceable device), there is already cause for concern. By connecting a multimeter or "tsashka" to it with respect to the "mass", we control the voltage in the on-board network. It is located on the rear wall of the engine compartment - or closer to the wing, but always easily accessible and visible. All "Toyotovody", at least once carefully surveyed the engine compartment, saw, of course, a closed plastic box with the inscription diagnostic.