There are a few things you can do to try and determine whether or not your car’s ignition failure sensor is the problem. One way to check is to jumper the car’s battery and see if the car will start. If the car does not start, then the ignition failure sensor is likely the issue. Another way to check is to test the power going to the ignition failure sensor using a multimeter. If there is no voltage going to the sensor, then it is likely that it is the cause of the car not starting.
What is the Ignition Failure Sensor?
The ignition failure sensor is a component on your car that monitors the current voltage levels of your spark plugs. If the voltage levels drop below a certain threshold, the sensor will trigger the car’s engine to start. This is usually done in order to prevent your car from starting when it’s not supposed to (like when you’re driving in deep snow).
How Does the Ignition Failure Sensor Work?
The ignition failure sensor is a component on your car’s engine that monitors the condition of the ignition switch. If the ignition switch fails, the sensor will send a signal to your car’s computer. The computer will then disengage the electric motor from the transmission and disable the vehicle’s safety systems.
How to Test If Your Car Has an Ignition Failure Sensor
If your car’s ignition failure sensor isn’t working, your car may not start. You can test your car’s ignition failure sensor by trying to start it without it. If your car doesn’t start, the ignition failure sensor is probably defective and needs to be replaced.
Fixing a Car with an Ignition Failure Sensor
If your car won’t start, there’s a good chance that your ignition failure sensor is the problem. This component monitors the voltage at the starter motor, and if it falls below a certain threshold, the car will refuse to start. Here’s how to fix it:
First, check to see if the sensor is physically damaged. If so, you’ll need to replace it. Next, disconnect the sensor from the wiring harness and test the wires for continuity. If they’re missing or damaged, you’ll have to replace the wiring as well. Finally, reattach the sensor and test the car again.