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Message Board >
obd code reader
obd code reader
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1
Anonymous
Guest
Jun 09, 2012
6:50 AM
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Use your digital multimeter to test DC voltage by using the dial setting shown in the photo. Plug the red probe into the red voltage, Ohm. Plug the black probe into the com jack. Hold the red probe on the positive side of the DC voltage source and hold the black probe to the negative side.Test AC voltage with your digital multimeter by using the dial setting shown in the photo. Plug the red probe into the red voltage, Ohm,obd2 bluetooth adapter. Plug the black probe into the com jack. Hold the red probe on the positive side of the AC voltage source and hold the black probe to the negative side. Autoranging multimeters will automatically scale to the nearest voltage range. You can also press the range button to manually change the range to see the value in a different detail.odb2 bluetooth
Test resistors by setting the digital multimeter on the setting shown in the photo. Plug the red probe into the red voltage, Ohm, diode jack. Plug the black probe into the com jack. Hold the red probe on the positive side of the resistor in the circuit and hold the black probe to the negative side. Using this method a resistor can be tested in circuit or as a loose component.Test continuity of a circuit by setting the dial to the setting shown in the photo. Plug the red probe into the red voltage, Ohm, diode jack. Plug the black probe into the com jack. Test circuit boards or wiring by holding one lead to one end of a trace or wire and the other lead to the other side of the lead or wire. If the multimeter beeps, then the wire or trace is good. If you do not have a circuit schematic,torque obd, this is a great tool to use to map things out.
Use your digital multimeter to test a diode by using the dial setting shown in the photo. Plug the red probe into the red voltage, Ohm, diode jack. Plug the black probe into the com jack. Hold the red probe rear side of the forward bias and the black probe on the forward side. If you get a reading the diode is good. If the digital multimeter beeps, the diode is bad.
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