Measuring Voltage |
1. |
Disconnect the electrical harness connector for the circuit being tested, if necessary. |
2. |
Enable the circuit and/or system being tested. Use the following methods: |
• |
Turn ON the ignition, with the engine OFF. |
• |
Start the engine. |
• |
Turn ON the circuit and/or system with a scan tool in Output Controls. |
• |
Turn ON the switch for the circuit and/or system being tested. |
3. |
Select the V (AC) or V (DC) position on the Digital Multimeter (DMM). |
4. |
Connect the positive lead of the DMM to the point of the circuit to be tested. |
5. |
Connect the negative lead of the DMM to a good ground. |
6. |
The DMM displays the voltage measured at that point. |