[TR] Horn relay questions

[Bob Danielson]

AAW Wiring diagrams are per model year and very accurate and it shows the horn relay as being 4 pin fed by P, PB and PY




Bob Danielson
TR6 Interior Panels, Boot Covers and Fender Blankets
http://tr6.danielsonfamily.org/PanelBootSales1.htm

From: davgil at aol.com
Sent: Friday, September 3, 2021 6:47 AM
To: triumphs at autox.team.net
Subject: [TR] Horn relay questions

I have a 5 pin horn relay on my 1976 TR6 that appears to be original.  I am only getting 9 volts on the purple/yellow output to the horns so I am assuming a bad relay, but I cannot find the purpose of the 5th pin.  It is not the horn ground from the push button, input from the fuse box or output to the horns.  My wiring diagrams all show only 4 pins for the relay.  I cannot read the pin identifiers so there is no help there.  The wire is black with a tracer color that is faded so I cannot determine what it is.  Any ideas would be appreciated. 
David Gill
1976 TR6

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