Question about Cars & Trucks
Using a wiring diagram for the affected systems an testing with a DVOM - digital volt ohm meter is the way to find what is wrong .
It's not that simple (what may be wrong ) ! Looking at a wiring diagram to see if these thing's share a power or ground connection . Do you know what a wiring diagram is an how to read an use one ? How to use a DVOM ? You can find free wiring diagrams here http://www.bbbind.com/free_tsb.html . Watch these videos from youtube . Basic Electricity for Service Techs Ohm law Current Flow Opens Shorts
How to Use Multimeter to Troubleshoot Common Problems
Electric Testing Techniques You Need to Know
most of the time a couple simple test's using a voltmeter will point to the problem .
Mastering Voltage Drop Testing with Pete Meier and Jerry Truglia
You don't say what the make , model an year veicle you have . If I were to take a guess as to the problem I would say these thing's all shear a common ground point . It could be somewhere behind the instrument panel or behind the driver side kick panel .
Posted on May 15, 2017
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Posted on Jan 02, 2017
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