Special Tools
EL–39200 Digital Multimeter (DMM)
For equivalent regional tools, refer toSpecial Tools.
Caution:Refer toTest Probe Caution.
The following procedure determines the difference in voltage potential between 2-points.

Set the Digital Multimeter (DMM) to the V (DC) position.Connect the positive lead of the DMM to one point of the circuit to be tested.Connect the negative lead of the DMM to the other point of the circuit.Operate the circuit.The DMM displays the difference in voltage between the 2-points.
Electronic Vibration Analyzer (EVA) Description and Operation
Measuring Frequency#PIC5932: Questionnaire for Bluetooth Related Concerns - (Nov 1, 2013)
Subject:Questionnaire for Bluetooth Related ConcernsModels: 2006 - 2014 GM Passenger Cars and Light Duty Trucks Equipped With Bluetooth The following diagnosis might be helpful if the vehicle exhibits the symptom(s) describedin this PI.Condition/ConcernSome customers may complain of various con ...