When a plug key is open , the circuit is incomplete and is call open circuit.. To be continued..
An open circuit is one where the current is not able to complete the circuit. An example could be a light bulb connected to power but switched off, the circuit being broken by the switch, and considered "open." When flipping the switch On, it connects the power and the circuit is then closed.
meaning that the current from your power source doesn't return to the positive end (electricity flows from - negative, to + positive)
An open circuit is a kind of electric circuit in which the path that the electrons follow cannot be completed because of an open gap that they cannot flow through.An open circuit is a circuit where the load resistance has been removed and replaced with an open, meaning there is no electrical connection between the two sides of the circuit.
In a lighting circuit an open circuit will turn off the light.
The injector circuit is the injector itself and each of the two wires connected to it all the way to their other ends. Open means no connection at all. If you have a code with "open circuit" in it's description, consider that "open circuit or high resistance" is usually a better description. Before you go any further, make sure the electrical connector at the injector hasn't come unplugged.
Injector circuit open, cylinder 1. Check the connection at the #1 fuel injector if it is okay you may have a failed injector.
Unplugged connector, failed injector, broken wire, bad computer.
Trouble code P0203 means: Injector Circuit / Open - Cylinder 3
P0202 relates to the fuel injector on cylinder No2. The code SUGGESTS that the injector has no electrical power to it. These work on a constant 12V feed and the ground is supplied by the ECU by a predetermined map. i.e. open circuit = no complete electrical circuit. The most effective way of checking this is with an oscilloscope. A multi meter may not capture the power at the correct time due to the slow refresh rate.
Trouble code P2146 means: Fuel Injector Group "A" Supply Voltage Circuit/Open
Injector driver open or short.
Trouble code P0201 means: Injector Circuit / Open - Cylinder 1 Need 2 replace Injector on cylinder 1
Trouble code P0207 means: Injector Circuit / Open - Cylinder 7 Most likely cause is fuel injector is clogged or leaking
Low current detected by ECU (such as an open or higher then expected resistance).
code 25 -refers to a short or open circuit between the solenoid valve to ECM.possible broken fuel pressure regulator or short circuit from solenoid valve to fuel injector main relay. check selenoid valve.(fuel pressure regulator control solenoid)
Fuel level sensor circuit high. You have an open circuit in the fuel float or in the wiring to the tank.