Testing for Continuity |
With a Digital Multimeter (DMM) |
1. |
Set the DMM to the Ω position. |
2. |
Disconnect the power feed (i.e. fuse, control module) from the suspect circuit. |
3. |
Disconnect the load. |
4. |
Select the MIN MAX function on the DMM. |
5. |
Connect one lead of the DMM to one end of the circuit to be tested. |
6. |
Connect the other lead of the DMM to the other end of the circuit. |
7. |
If the DMM displays low or no resistance, the circuit has good continuity. |
With a Test Lamp |
Note | ||
Only use the test lamp procedure on low impedance power and ground circuits. |
1. |
Remove the power feed (i.e. fuse, control module) from the suspect circuit. |
2. |
Disconnect the load. |
3. |
Connect one lead of the test lamp to one end of the circuit to be tested. |
4. |
Connect the other lead of the test lamp to battery positive voltage. |
5. |
Connect the other end of the circuit to ground. |
6. |
If the test lamp illuminates (full intensity), then the circuit has good continuity. |