Headlight Wiring

(Difference between revisions)

Datsun 1200 encyclopedia | Recent changes | Switch to MediaWiki mode

Special pages Double redirects Broken redirects Disambiguation pages Log in / create account Preferences My watchlist Recent changes Upload file File list Gallery of new files User list Statistics Random page Orphaned pages Uncategorized pages Uncategorized categories Unused categories Unused files Wanted pages Wanted categories Most linked to pages Most linked to categories Articles with the most categories Most linked to images Articles with the most revisions Short pages Long pages New pages Oldest pages Dead-end pages All pages Prefix index List of blocked IP addresses and usernames Book sources Categories Export pages Version System messages Logs MIME search List redirects Popular pages Search

Printable version | Disclaimers | Privacy policy | Current revision
Category: Body Electrical System

---

Revision as of 05:09, 11 January 2010 ddgonzal (Talk | contribs) (->Pinouts) <- Previous diff		Revision as of 06:13, 11 January 2010 ddgonzal (Talk | contribs) (->Pinouts USA) Next diff ->
Line 28:		Line 28:
	<br>With knob pulled out to Position one, the parking lamps are activated		<br>With knob pulled out to Position one, the parking lamps are activated
	<br>With knob pulled out to Position two, parking + headlights are activated		<br>With knob pulled out to Position two, parking + headlights are activated
-
-
-	Light Switch connector<table width=400 border=1 borderwidth=1 bordercolor=black cellspacing=0 cellpadding=2>
-	<tr bgcolor="ccccff"><td>R</td><td>Headlight hot feed Input
-	* from R wire of fuse box ('L' terminal)</td></tr>
-	<tr><td>R</td><td>Headlight circuit hot Output
-	* To RY wire of Dimmer Switch</td></tr>
-	<tr bgcolor="ccccff"><td>n/a</td><td>no connection</td></tr>
-	<tr><td>n/a</td><td>no connection</td></tr>
-	<tr bgcolor="ccccff"><td>GL</td><td>parking lights hot feed
-	* from GL wire of fuse box ('PT' terminal)</td></tr>
-	<tr><td>GL</td><td>parking lights circuit output
-	* to GL wire of headlights
-	* to GL wire of running (parking) lights
-	* to GL wire of Instrument panel</td></tr>
-	</table>
	Position Connections<table border=1 borderwidth=1 bordercolor=black cellspacing=0 cellpadding=2>		Position Connections<table border=1 borderwidth=1 bordercolor=black cellspacing=0 cellpadding=2>
Line 55:		Line 39:
-	Headlight connector<table border=1 borderwidth=1 bordercolor=black cellspacing=0 cellpadding=2>	+	Headlight Low/High Beam Circuit
-	<tr><td>B</td><td>Ground</td><td>body connection</td></tr>	+	<br>[http://datsun1200.com/modules/myalbum/photo.php?lid=21188 http://datsun1200.com/modules/myalbum/photos/21188.jpg]
-	<tr><td>RW</td><td>(high beam) to one RW terminal of Dimmer Switch</td><td>only powered if Dimmer lever is forward</td></tr>	+	<br>With the T/S lever pulled back, power goes to Low beams
-	<tr><td>RB</td><td>(low beam) to RB terminal of Dimmer switch</td><td>only powered if Dimmer lever is back</td></tr></table>	+	<br>With the T/S lever pushed forward, power goes to High beams
-		+
	Dimmer Switch (in T/S & Light Switch unit on steering column, only headlight section of switch listed here)<table border=1 borderwidth=1 bordercolor=black cellspacing=0 cellpadding=2>		Dimmer Switch (in T/S & Light Switch unit on steering column, only headlight section of switch listed here)<table border=1 borderwidth=1 bordercolor=black cellspacing=0 cellpadding=2>
-	<tr><td>RY</td><td>Headlight hot feed</td><td>	+	<tr bgcolor="ccccff"><td>RY</td><td>Headlight hot feed</td><td>
	* From R wire of Light Switch</td></tr>		* From R wire of Light Switch</td></tr>
	<tr><td>RB</td><td>headlight low-beam</td><td>		<tr><td>RB</td><td>headlight low-beam</td><td>
	* To RB wire of headlights</td></tr>		* To RB wire of headlights</td></tr>
-	<tr><td>RW</td><td>headlight high-beam</td><td>	+	<tr bgcolor="ccccff"><td>RW</td><td>headlight high-beam</td><td>
	* To RW wire of headlights		* To RW wire of headlights
	* To RY wire of "MB" light\* in Instrument panel</td></tr>		* To RY wire of "MB" light\* in Instrument panel</td></tr>
	</table>\* Labeled "Beam" for 1971. The other side of this light is grounded.		</table>\* Labeled "Beam" for 1971. The other side of this light is grounded.
		+
		+	Light Switch connector<table width=400 border=1 borderwidth=1 bordercolor=black cellspacing=0 cellpadding=2>
		+	<tr bgcolor="ccccff"><td>R</td><td>Headlight hot feed Input
		+	* from R wire of fuse box ('L' terminal)</td></tr>
		+	<tr><td>R</td><td>Headlight circuit hot Output
		+	* To RY wire of Dimmer Switch</td></tr>
		+	<tr bgcolor="ccccff"><td>n/a</td><td>no connection</td></tr>
		+	<tr><td>n/a</td><td>no connection</td></tr>
		+	<tr bgcolor="ccccff"><td>GL</td><td>parking lights hot feed
		+	* from GL wire of fuse box ('PT' terminal)</td></tr>
		+	<tr><td>GL</td><td>parking lights circuit output
		+	* to GL wire of headlights
		+	* to GL wire of running (parking) lights
		+	* to GL wire of Instrument panel</td></tr>
		+	</table>
		+
		+
		+
		+	Headlight socket<table border=1 borderwidth=1 bordercolor=black cellspacing=0 cellpadding=2>
		+	<tr bgcolor="ccccff"><td>B</td><td>Ground</td><td>body connection</td></tr>
		+	<tr><td>RW</td><td>(high beam) to one RW terminal of Dimmer Switch</td><td>only powered if Dimmer lever is forward</td></tr>
		+	<tr bgcolor="ccccff"><td>RB</td><td>(low beam) to RB terminal of Dimmer switch</td><td>only powered if Dimmer lever is back</td></tr></table>
	= Australia =		= Australia =

---

Revision as of 06:13, 11 January 2010

Datsun B110 headlights are fused through the fuse box. No relays are used. Original Specs for headlights are 50/40 watt (standard large round headlights). From the fuse box "Battery" side (always hot, not dependent on ignition key position), through a 15-amp fuse the circuit goes to the Light Switch. From the Light Switch it goes to the Dimmer switch on the column. From here -- depending on the position of the Dimmer lever position -- it goes to either the low (DIM) beam of the headlights or the high (MAIN) beam of the headlights.

Also see: Headlight Specifications

Contents 1 Overview 2 Earthing 3 Pinouts USA 4 Australia 5 Passing Light Switch 6 Relay 6.1 Harness Kit

Overview

The headlights are grounded via the main wiring harness.

Completing the headlight features is the "High Beam" light in the instrument panel. This is connected to the high-beam circuit to light up a visual indicator on the dash when the high beams are on.

So the headlight circuit has these components:

• Two identical headlights

  (Standard 12V "large round" type used by all makes of older vehicles)

• 15A Fuse in fuse box
• Light Switch
• Dimmer switch (T/S & Light Switch on steering column)
• High-beam indicator lamp in instrument panel
• Wiring and connectors
• Relays are NOT used

Earthing

The headlights are grounded via the main wiring harness.

Pinouts USA

light switch - USA

With the knob pushed in, no circuits are connected.
With knob pulled out to Position one, the parking lamps are activated
With knob pulled out to Position two, parking + headlights are activated

Position Connections

OFF	no connections
Pull stop 1 (halfway out)	GL to GL (parking lights)
Pull stop 2 (all the way out)	GL to GL (parking lights) R to R (headlights)

Headlight Low/High Beam Circuit

With the T/S lever pulled back, power goes to Low beams
With the T/S lever pushed forward, power goes to High beams

Dimmer Switch (in T/S & Light Switch unit on steering column, only headlight section of switch listed here)

RY	Headlight hot feed	From R wire of Light Switch
RB	headlight low-beam	To RB wire of headlights
RW	headlight high-beam	To RW wire of headlights To RY wire of "MB" light\* in Instrument panel

\* Labeled "Beam" for 1971. The other side of this light is grounded.

Light Switch connector

R	Headlight hot feed Input from R wire of fuse box ('L' terminal)
R	Headlight circuit hot Output To RY wire of Dimmer Switch
n/a	no connection
n/a	no connection
GL	parking lights hot feed from GL wire of fuse box ('PT' terminal)
GL	parking lights circuit output to GL wire of headlights to GL wire of running (parking) lights to GL wire of Instrument panel

Headlight socket

B	Ground	body connection
RW	(high beam) to one RW terminal of Dimmer Switch	only powered if Dimmer lever is forward
RB	(low beam) to RB terminal of Dimmer switch	only powered if Dimmer lever is back

Australia

light switch - Australia

With the knob pushed in, no circuits are connected.
With knob pulled out to Position one (POSH) you are simply smashing
With knob pulled out to Position two (POLL) you are just common
With knob TWISTED, the dash lights are bright or dim

Passing Light Switch

A passing light feature was an option for B110. If your turn-signal lever has a push-button on the end, it's the passing light switch. Push it in, and the headlights light while it's pushed in (regardless of whether lights are on or off).

This is composed of two parts:

• The switch itself is part of the turn signal (on the steering column).

  

• The relay. 1200s don't use headlight relays, except for this optional Passing Switch. It looks very much like the Horn Relay.
  • 25230-89912 RELAY-passing lamp (4-connector relay on early models)
  • 25230-89905 RELAY-passing lamp (3-connector relay from 1971 Apr)
  • 26320-14800 RELAY-horn (has 3 connectors, located by Coil)

    

Note that this just wires in series with the standard wiring. From the 'L' fuse to the high-beam wiring, the switch bypasses simply the regular switch, firing the Main Beams.

Passing Light Switch circuit

• The red circle indicates the part of the T/S switch that is different from a normal T/S switch

Relay

Most cars use a headlight relay, to keep high power from going through the headlight and dimmer switches. You may add a relay to the Datsun 1200 to improve the power to the headlights. Some club members report the headlights are much brighter when wired up this way.

Discussion

Harness Kit

If you have more money than time, an Relay wiring kit is really easy:

Take the new harness:

1. Connect HOT wire
2. Ground/earth the relays
3. Plug into existing headlight connector
4. Plug harness into headlights

Your'e Done! Only $129 USD Painless Wiring Headlight Harness with relays

---

Edit this page | Discuss this page | Page history | What links here | Related changes




Datsun 1200 encyclopedia | About Datsun 1200 Club | Switch to MediaWiki mode