Chevrolet Equinox Service Manual: Measuring Voltage

Chevrolet Equinox Service Manual / Vehicle - General / Measuring Voltage

Special Tools

EL-39200 Digital Multimeter (DMM)

For equivalent regional tools, refer toSpecial Tools.

Caution:Refer toTest Probe Caution.

The following procedure measures the voltage at a selected point in a circuit.

Disconnect the electrical harness connector for the circuit being tested, if necessary.Enable the circuit and/or system being tested. Use the following methods:Turn ON the ignition, with the engine OFF.Turn ON 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.Select the V (AC) or V (DC) position on the Digital Multimeter (DMM).Connect the positive lead of the DMM to the point of the circuit to be tested.Connect the negative lead of the DMM to a good ground.The DMM displays the voltage measured at that point.

Measuring Frequency

Special Tools EL–39200 Digital Multimeter (DMM)For equivalent regional tools, refer toSpecial Tools.Caution:Refer toTest Probe Caution.The following procedure determines the frequency of a signal.No ...

Service Programming System (SPS)

Special Tools EL-49642 SPS Programming Support ToolFor equivalent regional tools, refer toSpecial Tools.For step-by-step control module programming instructions, please refer to the techlineinformatio ...

Other materials:

Crankcase Ventilation System Description Emissions PCV
General DescriptionA crankcase ventilation system is used to consume crankcasevapors in the combustion process instead of venting them toatmosphere. Fresh air from the intake system is supplied to thecrankcase, mixed with blow by gases and then passed through acalibrated orifice into the intake mani ...