![\"\"](\"https:\/\/mitchell1.com\/wp-content\/uploads\/2024\/12\/Not-all-is-gold-1.jpg\")
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More decades ago than I care to remember, some movie or folklore led me to start panning for gold in the dirt road outside our home. Slushing a pan full of dirt around in a pan with water from the garden hose rather quickly revealed the road to be a mother-load of GOLD.<\/p>\n
The bright flecks floating to the top of the dirt in the pan glistened up at me in the sunlight. Carefully, I scooped the gold off the dirt and into my jar. As my gold dried, it turned black. No longer sure about this gold, I sought out the expertise of a higher authority, my Dad. With a chuckle he told me that it wasn\u2019t gold at all but fool\u2019s gold, or iron pyrite. My illusion as a rich gold miner quickly evaporated. \u201cBut how do you tell the difference between fool\u2019s gold and gold?\u201d I remember asking in despair. My Dad responded, \u201cThey test it.\u201d<\/p>\n
Spring forward a few decades. A service truck comes into the shop with a transmission shifting issue. A quick check reveals several shift solenoid low voltage codes. Going through the preliminary electrical diagnostic checks fail to identify what or where the low voltage condition originates.<\/p>\n
I clear out the codes and take the truck for a drive. Sure enough, before long the problem happens again. Clearing the codes again, I monitor the voltage to the shift solenoids. Both solenoids operate correctly \u2013 cycling on and off with the corresponding gear \u2013 at least until the air conditioning cycled. Then the voltage dropped, and the low voltage codes reset.<\/p>\n
The problem source was narrowing. Arriving back at the shop, I started looking at the wiring to the recently installed air conditioning system. Whoever installed the air conditioning system found a wire with key-on power and tapped into it to power the air conditioning compressor clutch.<\/p>\n
While the circuit voltage provided enough power to illuminate a test-light, it was not enough to power the transmission shift solenoids and the compressor clutch. Finding a hot wire under the dash can be fool\u2019s gold; it looks good but it\u2019s really just creating a new problem.<\/p>\n
Gone are the days when the technician could just tap into a hot wire to power radios and other add-on accessories. The voltages present in many circuits are less than battery voltage and power sensitive electrical components. Splicing into circuits can cause any number of other problems that can lead to failures of costly components or assemblies.<\/p>\n
Now more than ever before, technicians must consult wiring and circuit information before using a circuit to power other equipment. Manufactures generally provide additional fused ports to accommodate electrical accessories. \u00a0So the takeaway is this: Power in a wire can be fool\u2019s power. Make sure it\u2019s the right power intended to be used for accessories.<\/p>\n
You may also like to read:<\/p>\n
![\"\"](\"https:\/\/mitchell1.com\/wp-content\/uploads\/2022\/03\/Not-all-is-gold.jpg\")
Gone are the days when the technician could just tap into a hot wire to power radios and other add-on accessories. The voltages present in many circuits are less than battery voltage and power sensitive electrical components. Splicing into circuits can cause any number of other problems that can lead to failures of costly components or assemblies. But with Mitchell 1’s TruckSeries by your side you can get rid of those problems for good. Learn all about it here.<\/p>\n","protected":false},"author":1,"featured_media":9585,"parent":0,"template":"","meta":{"_acf_changed":false,"content-type":"","inline_featured_image":false,"_genesis_hide_title":false,"_genesis_hide_breadcrumbs":false,"_genesis_hide_singular_image":false,"_genesis_hide_footer_widgets":false,"_genesis_custom_body_class":"","_genesis_custom_post_class":"","_genesis_layout":""},"shopconnection-category":[1626],"shopconnection-tag":[1419],"class_list":{"0":"post-6732","1":"shopconnection","2":"type-shopconnection","3":"status-publish","4":"has-post-thumbnail","6":"shopconnection-category-truck-repair","7":"shopconnection-tag-electricalrepairtestingtruckwiring","8":"entry"},"acf":[],"_links":{"self":[{"href":"https:\/\/mitchell1.com\/wp-json\/wp\/v2\/shopconnection\/6732","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/mitchell1.com\/wp-json\/wp\/v2\/shopconnection"}],"about":[{"href":"https:\/\/mitchell1.com\/wp-json\/wp\/v2\/types\/shopconnection"}],"author":[{"embeddable":true,"href":"https:\/\/mitchell1.com\/wp-json\/wp\/v2\/users\/1"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/mitchell1.com\/wp-json\/wp\/v2\/media\/9585"}],"wp:attachment":[{"href":"https:\/\/mitchell1.com\/wp-json\/wp\/v2\/media?parent=6732"}],"wp:term":[{"taxonomy":"shopconnection-category","embeddable":true,"href":"https:\/\/mitchell1.com\/wp-json\/wp\/v2\/shopconnection-category?post=6732"},{"taxonomy":"shopconnection-tag","embeddable":true,"href":"https:\/\/mitchell1.com\/wp-json\/wp\/v2\/shopconnection-tag?post=6732"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}