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How to Test a Neutral Safety Switch in 3 Stages

How to Test a Neutral Safety Switch in 3 Stages

There is a neutral safety switch In every automated vehicle.
This electronic component prevents the engine from starting up unexpectedly.

So, users can start their vehicle only if the gear is in “Park” mode.

Sometimes, this switch may start malfunctioning or stop functioning at all.

In all cases, it is important to know how to test a neutral safety switch to decide whether or not the switch is working.

How to Test a Neutral Safety Switch

If you find any anomaly in this switch’s functions, find out the actual source of this problem. Go through these simple steps and test the neutral safety switch.

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1. Locating the Switch

Lots of people don’t know the location of this switch even after driving for many years.

If you are not conscious of its position, read the Service Manual carefully to acquire knowledge about its location and functions.

The switch is likely to be inside the transmission cage, and it looks like a cigarette lighter. That could also be in the gear shifter or on the side of the transmission.

2. Inspecting the Wiring

You ought to check the wiring after you have identified the switch. It has wires which establish connect it to the starter coil.

This switch will be on “Open” when the transmission is in gear.
As soon as you shift the ignition switch to the “Start” position, the starter will start to get the current.

During these processes, you need to ensure that the transmission is in either “Park” or “Neutral” mode.

You can get a complete idea of the wiring structure of your car by reading your service manual.

Finally, disconnect the connection between the switch and the wiring connector.

3. Testing Power in the Switch

To test this switch, hold the gear in the reverse position, and then place the key in the ignition switch. During this time, don’t kick off the engine of the car.

Use the 12-volt test light to check the presence of the power in the wire harness. If there is power, the test light is illuminated.

Through this test, you can also tell if the circuit is working correctly or not. Now, mount the wire connector to the neutral safety switch.
If there is no light, search for damaged or loose connections by checking all the wires.

If the wires are functional and the light is not getting any power, replace the neutral switch.

You can also move the car’s shift levers to different positions while starting the engine to check the switch adjustment requirement.

Here, you’re trying to bypass a neutral safety switch. Follow this procedure to perform the bypass securely:

Try starting the car while the gear is in “Park” mode.

If the engine is not cranking, press the brake and start in the “Neutral” mode.
If the engine starts after the second stage, the switch is defective.

Conclusion in conclusion

You now know how to test a neutral safety switch.
Follow these steps to determine if you have to adjust the switch or if the problem stems out from some other sources.

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