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Trailer 4-wire, Brakes Turns Hazards Work, No Running Lights
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<blockquote data-quote="johnnyclack" data-source="post: 247245" data-attributes="member: 7874"><p>Voltage spikes/current overloads/ dead shorts blow fuses :twisted: </p><p></p><p>Use a Voltage / amp meter to check out vehicle plug, see what level of VDC your getting at socket, if 12 VDC is present then focus on your trailer.</p><p></p><p>If your meter has a continuity tester then pull your lamps apart and “ring out each wire from the plug socket to the pins on your lamps. Make a chart and cross them off as you go. <em>I have also found sketching the wire circuit in troubleshooting wire problems is a big help </em>You say “new wire harness” has it ever worked ? If it was just installed then make sure all you connection points are tight, I have see <em>(once)</em> on a new wire set, the insulation on the conductor wire was not stripped back far enough for the wire to make contact with the pins, therefore no current flow <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite10" alt=":oops:" title="Oops! :oops:" loading="lazy" data-shortname=":oops:" /></p></blockquote><p></p>
[QUOTE="johnnyclack, post: 247245, member: 7874"] Voltage spikes/current overloads/ dead shorts blow fuses :twisted: Use a Voltage / amp meter to check out vehicle plug, see what level of VDC your getting at socket, if 12 VDC is present then focus on your trailer. If your meter has a continuity tester then pull your lamps apart and “ring out each wire from the plug socket to the pins on your lamps. Make a chart and cross them off as you go. [i]I have also found sketching the wire circuit in troubleshooting wire problems is a big help [/i]You say “new wire harness” has it ever worked ? If it was just installed then make sure all you connection points are tight, I have see [i](once)[/i] on a new wire set, the insulation on the conductor wire was not stripped back far enough for the wire to make contact with the pins, therefore no current flow :oops: [/QUOTE]
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Trailer 4-wire, Brakes Turns Hazards Work, No Running Lights
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