| $5.00 daytime running lights [message #310289] |
Sun, 13 November 2016 07:31  |
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RF_Burns
Messages: 2277
Registered: June 2008
Location: S. Ontario, Canada
Karma:
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Senior Member |
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Canada has had vehicle daytime running lights since 1990. Here is how a PO implemented DRL on my coach using only a cube relay and a 30amp breaker. All the wiring is done up front under the passenger side hood access for easy wiring.
-Find an area on the aluminum plate where you can mount the relay and breaker and make the follow connections with wiring long enough to mount it there.
-Connect a wire from the center terminal of the combiner to relay pin 86
-using a voltmeter or test light determine which wire is high beam and low beam on the back of the passenger side headlight
-connect a wire from relay terminal 85 to the high beam wire
-Connect a wire from relay terminal 87 to the low beam wire
-Connect a wire from relay terminal 30 through the breaker to the chassis battery terminal on the aluminum plate.
-mount the relay and breaker to the aluminum panel.
Operation is as follows:
-Starting the engine, alternator power flows to the center terminal of the combiner
-This closes relay and powers the low beam headlights only when the engine is running
-Turn headlights ON
-Low beams operate normally, but with 2 sources of power (OEM and relay)
-Turn high beams ON
-Relay opens due to the fact the relay sees 12 volts on both sides of its coil. Relay coil current was flowing to ground through hi-beam filament.
-Low beams go out and hi beams come ON through OEM wiring.
Just an easy and inexpensive way on doing it.
Bruce Hislop
ON Canada
77PB, 455 Dick P. rebuilt, DynamicEFI EBL EFI & ESC.
1 ton front end
http://www.gmcmhphotos.com/photos/showphoto.php?photo=29001
My Staff says I never listen to them, or something like that
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