Troubleshooting with a Test Lamp |
1. |
Attach one lead to ground. |
2. |
Touch the other lead to various points along the circuit where voltage should be present. |
3. |
When the bulb illuminates, there is voltage at the point being tested. |
1. |
Attach one lead to battery positive voltage. |
2. |
Touch the other lead to various points along the circuit where ground should be present. |
3. |
When the bulb illuminates, there is ground at the point being tested. |