240Z Headlight Relay Mod
The following is my modification of the Headlight wiring for 240Z`s. I made this modification in order to take the current load off of the Headlight switch and ...
74C164 8 bit shift register work as a heart for car LED light sequencer
This Car LED Light Sequencer uses a standard 74C164 8 bit shift register as its heart of operation. The 74C164 is also known as a 8-Bit Parallel-Out Serial Shif...
Injector Pulse Width Monitor with LM324 LM3914
The schematic for the pulse width monitor. The heart of the circuit is the transistor current source which charges cap C10 to form an integrator. The theory is ...
Car Parking Sensor Circuit Schematic Free With Explanation
This circuit was designed as an aid in parking the car near the garage wall when backing up. LED D7 illuminates when bumper-wall distance is about 20 cm. , D7+D...
Suzuki GSX1300 Hayabusa Charging System Circuit (99 00)
The circuit of Suzuki GSX1300 Hayabusa Charging System composed of generator, regulator/rectifier unit and battery. The AC current generated from the generator ...
handmade gsm gps tracker second edition
New uTracker on GE865 Small size. New edition of tracker (SIM300DZ, EB-230/LEA-5S). Add OBD-II (ISO) sensor, accelerometer and RFID reader. Add TR24 2.4GHz modu...
Circuit Diagram Hilux Toyota
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Self Parking Robot Car
Self Parking is a automatic parking system found in modern cars. It makes use of various sensors like cameras, sonars, infrared rangefinders etc. to gather info...
Car Courtesy Light
A car courtesy light in a standard car without a board computer is often a very simple thing: you open the door, the interior light is switched on, you close th...
Car clock temp voltmeter
This device was designed to replace the original digital clock in a Fiat Ducato 1992-1994, mounted just above the inside rearview mirror. The original clock is ...
Wireless Lock Tone
When I got the car I was relieved that it didn`t "chirp" or blare the horn every time I locked or unlocked the doors. Let`s face it, there are times when we don...
Finding an Electrical Short
Over time, many things can cause electrical problems with your Mustang. Components will get old and worn or a wire can rub against something and expose the wire...
1996 Suzuki Esteem Cooling Fan Circuit Diagram
The 1996 Suzuki Esteem Cooling Fan system consists of control relay for: radiator fan (located in relay box), air conditioning fan motor, radiator fan motor, co...
Polarity Indicator Circuit
This circuit consists of a tri-color LED, a resistor, wire, and a coin-size test plate. You will have to build two such circuits one for each black clamp on a ...
Car Battery And Alternator Monitor Circuit
The monitor is a simple voltage comparator in which a car battery serves as the battery for operation. The input voltage to the comparator is set by adjustment...
Car Battery Tester For Cranking Amps Circuit
This circuit determines the cold cranking amps of a battery by first discharging the surface charge, then checking the internal resistance. This gives a more r...
Headlight Alarm Circuit
The base of Ql is connected to the car`s ignition circuit; the easiest point to make that connection is at the ignition switch fuse in the car`s fuse panel. Al...
Lights-On Reminder Circuit
A relay and two diodes are all tliat is needed the relay performs the job of a buzzer so no annunciator is required. When the lights are left on, but the ignit...
Alternator Regulator Circuit
This alternator regulator uses a 3-transistor dc amplifier, and is designed for a pulled up field system, where one side of the alternate field returns to the ...
Automatic Turn-Off Control For Automobiles Circuit
When the ignition switch is on, relay K1 is energized continuously, and the headlights can be turned on. Turning off the ignition turns on timer IC1,which keep...