Practice Back-Probing connectors on the Bench

Parctice Back-Probing connectors on the Bench

Note: Part of this practice is to make sure you do not damage terminals and connectors when doing electrical testing . Your score for this exercise depends on whether or not you damage the terminals and connectors. 

Check the box at the end of each step when it is completed:
If you have problems with the task , see you lecturer for help.

Warning : be careful of puncturing yourself with the pins . Wash and disinfect area if you puncture yourself.

Lets start with simple review of using multi-meters

1.0 Meter reading Ohms with wires not connected
1.1 Turn on meter , set it to measure ohms , make sure the leads are not touching anything ( open circuit ) .Record the readout on your meter: 0Ω
11.2 Describe what the readout above means when doing electrical testing:
It means there is an open circuit , no current can flow.

2.0 Meter reading Ohms wires connected
2.1 Meter on , set to Ohms , touch leads together and record the readout on your meter : 0.3Ω
2.2 Describe what the readout above means when doing electrical testing :
This means a circuit has been created , it's the resistance in the leads

This skill is one you need to be able to do in the workshop working on cars , so we start by practicing them on them on the bench  :

3.0 Practice back probing connectors
3.1 Find a hard shell connector , with the attached terminals and wires that you can test .
3.2 Back probe a wire on one side , probe gently from the front on the other side , and measure the resistance , Record the reading : 0.3Ω
3.3 Do you konw you made a good connection with the wire ? And describe how you know ?
Yes , when I connected the leads tegether the resistance was at 0.3Ω , when I did the back probing connection the resistance was same as multi-meter leads connection at 0.3Ω ,thereforce I made connecting in back lecturer.