I got some Amber/White LED's that i want to mount to the step rails

The way I want to wire them is that i will have the run lamp circuity power the lights thru a normally closed relay and then use the Turn signal wire (on the appropriate side) to also blink the turn signal (by controlling the relay.

The problem I have - due to OCD - is that if I use the Turn signal (as I plan to) off of the tail light it will also provide power when the brake is applied and it will shut off the lights, instead of blink

So with the single relay set up - whenever i step on the brakes the lights would shut off and if i am at a turn and put on the signal the signal side would blink and the non signal side would be off

After some head scratching I came up with a solution in which I would set up a second relay which will control the enable side of the relay with an XOR gate, that will then tie in to the ouput of the first relay - this will allow me to have the light blink on one side and the lights solid on the other with the brakes on as when you are at a light to turn, I will have to put in a couple of diodes to prevent back feeding but that is not an issue.

My issue is I cant find an XOR gate - checked Radio Shack but could not find.

So questions to the knowledge base:

- any links to the electronic hobby world where I may get one - a Quad XOR will be more than enough

- to make my circuit work I need a clean brake signal - can I tap directly off the brake switch on the pedal?

- Have i over thought this.....open to other suggestions.


Last question - Fuse location 12 is for the lighted step rails - does this fuse provide the actual courtesy time out, or does it provide power protection to the courtesy circuit, if so where is the courtesy circuit as I do not have the wiring for the steps from the factory - I want to tie in the White LED's to that

Thanks and appreciate any input

 

Just a thought... Do the 7 pin and 4 pin trailer connectors behave the same regarding blink/brake?

 

Adventure. Why not use frt turn signal. You wont have brake involved.

 

Rob - do not know - need to check. Is the pin out shown on the connector

HD - excellent idea, I would say brilliant

Thank you

 

Also.I have looked at even the XL trucks and they have the connector for running board lights. About 4" in frt of rear cab mounts. Maybe its possible the stuck them on inside of frame rail, instead of on the outside.

 

I have looked several times and can't find them

Are they on both sides - has to be

I am going to be changing my oil soon and when I have the truck on the lift will do a thorough search.

By the way I re-did the schematic with the front turn signal and it works significantly simplified

 

Just in case you still want a quad XOR gate.


<table><tbody><tr><td align="left">
</td><td align="right">All prices are in US dollars.</td></tr><tr><td colspan="2"><table id="productTable" style="clear: right;" border="1" cellpadding="2" cellspacing="1"> <thead> <tr><th>Image</th><th>Digi-Key Part Number</th><th>Manufacturer Part Number</th><th>Description</th><th>Series</th><th>Manufacturer</th><th>Logic Type</th><th>Number of Circuits</th><th>Number of Inputs</th><th>Features</th><th>Voltage - Supply</th><th>Current - Quiescent (Max)</th><th>Current - Output High, Low</th><th>Logic Level - Low</th><th>Logic Level - High</th><th>Max Propagation Delay @ V, Max CL</th><th>Operating Temperature</th><th>Mounting Type</th><th>Supplier Device Package</th><th>Package / Case</th><th>Packaging</th><th>Quantity Available</th><th>Minimum Quantity</th><th>Unit Price</th><th></th></tr> <tr> <td>
</td><td> </td><td> </td><td> </td><td> </td><td> </td><td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td><td> </td><td> </td><td>
</td></tr> </thead><tbody> <tr itemscope="" itemtype="http://schema.org/Product"> <td></td><td nowrap="nowrap">296-31517-1-ND</td><td>CD4070BM96</td><td>IC QUAD EXCLUSV-OR GATE 14SOIC</td><td>4000B</td><td itemprop="manufacturer">Texas Instruments</td><td>XOR (Exclusive OR)</td><td>4</td><td>2</td><td>-</td><td>3 V ~ 18 V</td><td>1µA</td><td>3.4mA, 3.4mA</td><td>1.5 V ~ 4 V</td><td>3.5 V ~ 11 V</td><td>100ns @ 15V, 50pF</td><td>-55°C ~ 125°C</td><td>Surface Mount</td><td>14-SOIC</td><td>14-SOIC (0.154", 3.90mm Width)</td><td>Cut Tape (CT)
Alternate Packaging</td><td align="center">4,824 - Immediate
85,000 - Factory Stock</td> <td align="center">1</td> <td align="center">0.44000</td> <td><center> </center></td></tr> <tr itemscope="" itemtype="http://schema.org/Product"> <td></td><td nowrap="nowrap">296-14102-1-ND</td><td>CD4030BNSR</td><td>IC EX-OR GATE QUAD 14-SOP</td><td>4000B</td><td itemprop="manufacturer">Texas Instruments</td><td>XOR (Exclusive OR)</td><td>4</td><td>2</td><td>-</td><td>3 V ~ 18 V</td><td>1µA</td><td>3.4mA, 3.4mA</td><td>1.5 V ~ 4 V</td><td>3.5 V ~ 11 V</td><td>100ns @ 15V, 50pF</td><td>-55°C ~ 125°C</td><td>Surface Mount</td><td>14-SO</td><td>14-SOIC (0.209", 5.30mm Width)</td><td>Cut Tape (CT)
Alternate Packaging</td><td align="center">10,559 - Immediate
58,000 - Factory Stock</td> <td align="center">1
Non-Stock </td> <td align="center">0.48000</td> <td><center> </center></td></tr> <tr itemscope="" itemtype="http://schema.org/Product"> <td></td><td nowrap="nowrap">568-8238-1-ND</td><td>HEF4070BT,653</td><td>IC EX-OR GATE QUAD 14SOIC</td><td>4000B</td><td itemprop="manufacturer">NXP Semiconductors</td><td>XOR (Exclusive OR)</td><td>4</td><td>2</td><td>-</td><td>3 V ~ 15 V</td><td>4µA</td><td>3mA, 3mA</td><td>1.5 V ~ 4 V</td><td>3.5 V ~ 11 V</td><td>55ns @ 15V, 50pF</td><td>-40°C ~ 85°C</td><td>Surface Mount</td><td>14-SO</td><td>14-SOIC (0.154", 3.90mm Width)</td><td>Cut Tape (CT)
Alternate Packaging</td><td align="center">4,570 - Immediate</td> <td align="center">1</td> <td align="center">0.53000</td> <td><center> - </center></td></tr> <tr itemscope="" itemtype="http://schema.org/Product"> <td></td><td nowrap="nowrap">MC14070BDR2GOSCT-ND</td><td>MC14070BDR2G</td><td>IC GATE OR EXCLUSIVE CMOS 14SOIC</td><td>4000B</td><td itemprop="manufacturer">ON Semiconductor</td><td>XOR (Exclusive OR)</td><td>4</td><td>2</td><td>-</td><td>3 V ~ 18 V</td><td>1µA</td><td>8.8mA, 8.8mA</td><td>1.5 V ~ 4 V</td><td>3.5 V ~ 11 V</td><td>110ns @ 15V, 50pF</td><td>-55°C ~ 125°C</td><td>Surface Mount</td><td>14-SOICN</td><td>14-SOIC (0.154", 3.90mm Width)</td><td>Cut Tape (CT)
Alternate Packaging</td><td align="center">10,537 - Immediate</td> <td align="center">1</td> <td align="center">0.58000</td> <td><center> </center></td></tr> <tr itemscope="" itemtype="http://schema.org/Product"> <td></td><td nowrap="nowrap">296-14277-1-ND</td><td>CD4070BPWR</td><td>IC EX-OR GATE QUAD 14-TSSOP</td><td>4000B</td><td itemprop="manufacturer">Texas Instruments</td><td>XOR (Exclusive OR)</td><td>4</td><td>2</td><td>-</td><td>3 V ~ 18 V</td><td>1µA</td><td>3.4mA, 3.4mA</td><td>1.5 V ~ 4 V</td><td>3.5 V ~ 11 V</td><td>100ns @ 15V, 50pF</td><td>-55°C ~ 125°C</td><td>Surface Mount</td><td>14-TSSOP</td><td>14-TSSOP (0.173", 4.40mm Width)</td><td>Cut Tape (CT)
Alternate Packaging</td><td align="center">1,794 - Immediate
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Non-Stock </td> <td align="center">0.44000</td> <td><center> </center></td></tr> <tr itemscope="" itemtype="http://schema.org/Product"> <td></td><td nowrap="nowrap">568-8228-1-ND</td><td>HEF4030BT,653</td><td>IC EX-OR GATE QUAD 14SOIC</td><td>4000B</td><td itemprop="manufacturer">NXP Semiconductors</td><td>XOR (Exclusive OR)</td><td>4</td><td>2</td><td>-</td><td>3 V ~ 15 V</td><td>4µA</td><td>3mA, 3mA</td><td>1.5 V ~ 4 V</td><td>3.5 V ~ 11 V</td><td>55ns @ 15V, 50pF</td><td>-40°C ~ 85°C</td><td>Surface Mount</td><td>14-SO</td><td>14-SOIC (0.154", 3.90mm Width)</td><td>Cut Tape (CT)
Alternate Packaging</td><td align="center">2,400 - Immediate</td> <td align="center">1</td> <td align="center">0.46000</td> <td><center> </center></td></tr> <tr itemscope="" itemtype="http://schema.org/Product"> <td></td><td nowrap="nowrap">296-14129-1-ND</td><td>CD4070BNSR</td><td>IC EX-OR GATE QUAD 14-SOP</td><td>4000B</td><td itemprop="manufacturer">Texas Instruments</td><td>XOR (Exclusive OR)</td><td>4</td><td>2</td><td>-</td><td>3 V ~ 18 V</td><td>1µA</td><td>3.4mA, 3.4mA</td><td>1.5 V ~ 4 V</td><td>3.5 V ~ 11 V</td><td>100ns @ 15V, 50pF</td><td>-55°C ~ 125°C</td><td>Surface Mount</td><td>14-SO</td><td>14-SOIC (0.209", 5.30mm Width)</td><td>Cut Tape (CT)
Alternate Packaging</td><td align="center">3,652 - Immediate</td> <td align="center">1
Non-Stock </td> <td align="center">0.48000</td> <td><center> </center></td></tr> <tr itemscope="" itemtype="http://schema.org/Product"> <td></td><td nowrap="nowrap">497-1137-1-ND</td><td>HCF4070M013TR</td><td>IC GATE EXCLUSIVE OR QUAD 14SOIC</td><td>4000</td><td itemprop="manufacturer">STMicroelectronics</td><td>XOR (Exclusive OR)</td><td>4</td><td>2</td><td>-</td><td>3 V ~ 20 V</td><td>20µA</td><td>6.8mA, 6.8mA</td><td>1.5 V ~ 4 V</td><td>3.5 V ~ 11 V</td><td>100ns @ 15V, 50pF</td><td>-55°C ~ 125°C</td><td>Surface Mount</td><td>14-SO</td><td>14-SOIC (0.154", 3.90mm Width)</td><td>Cut Tape (CT)
Alternate Packaging</td><td align="center">14,724 - Immediate</td> <td align="center">1</td> <td align="center">0.43000</td> <td><center> </center></td></tr> <tr itemscope="" itemtype="http://schema.org/Product"> <td></td><td nowrap="nowrap">497-1123-1-ND</td><td>HCF4030M013TR</td><td>IC GATE EXCLUSIVE OR QUAD 14SOIC</td><td>4000</td><td itemprop="manufacturer">STMicroelectronics</td><td>XOR (Exclusive OR)</td><td>4</td><td>2</td><td>-</td><td>3 V ~ 20 V</td><td>20µA</td><td>6.8mA, 6.8mA</td><td>1.5 V ~ 4 V</td><td>3.5 V ~ 11 V</td><td>100ns @ 15V, 50pF</td><td>-55°C ~ 125°C</td><td>Surface Mount</td><td>14-SO</td><td>14-SOIC (0.154", 3.90mm Width)</td><td>Cut Tape (CT)
Alternate Packaging</td><td align="center">2,019 - Immediate</td> <td align="center">1
Non-Stock </td> <td align="center">0.53000</td> <td><center> </center></td></tr> <tr itemscope="" itemtype="http://schema.org/Product"> <td></td><td nowrap="nowrap">296-14103-1-ND</td><td>CD4030BPWR</td><td>IC EX-OR GATE QUAD 14-TSSOP</td><td>4000B</td><td itemprop="manufacturer">Texas Instruments</td><td>XOR (Exclusive OR)</td><td>4</td><td>2</td><td>-</td><td>3 V ~ 18 V</td><td>1µA</td><td>3.4mA, 3.4mA</td><td>1.5 V ~ 4 V</td><td>3.5 V ~ 11 V</td><td>100ns @ 15V, 50pF</td><td>-55°C ~ 125°C</td><td>Surface Mount</td><td>14-TSSOP</td><td>14-TSSOP (0.173", 4.40mm Width)</td><td>Cut Tape (CT)
Alternate Packaging</td><td align="center">212 - Immediate
32,000 - Factory Stock</td> <td align="center">1
Non-Stock </td> <td align="center">0.44000</td> <td><center> </center></td></tr> </tbody></table> </td></tr><tr><td colspan="2">
</td></tr></tbody></table> 18:12:16 10/22/2012

 

Adventure. Yes sir on both sides.

 

Tomahawk thanks

HD - so I should look from where the bed starts and the go back towards the front if the truck 4 inches and look in that vicinity?

 

Crawl underneath. Look straight up to the back of cab. Follow towards frt of truck till you see rear cab mount. Connector should be about 4" towards frt of that mount on the side of frame. Towards. The upper part frame.

 

If your relays are multi-pole you can just wire it for XOR logic. They will be more robust and forgiving to varying power conditions and wiring errors than logic ICs. The only time they are unsuitable is when you have high speed switching requirements, but if the fastest signal you're running through them are turn signals... which is about 1.2Hz or so, that will be no problem.

 

Here's a thread on the location of these, I don't think they're on all the trucks but I know they're on the Lariat and King Ranch additions.
https://www.ford-trucks.com/forums/1...-time-out.html

 

Thanks - that was other thread

Like i said will look again much closer when she's on the lift

 

HD below is the picture o fthe driver side frame rail.

followed your instructions and even reached up and around - i think i am SOL

The item point up at 1 oclock is the cab mount - the front of the truck is to the left - had to take the picture on my back, poor angle but the best i could get

 

Okay this is drivers side.looking straight up at rear cab mount and frame. thats the connector. Now i did ck and it could be over on inside. you can reach in a hands length and find the wiire loom it comes off, if you don't feel it, somehow you got robbed. as i said ive seen these on plain XL's