4L60e and backup lights - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**DaHos** · 07-29-2018, 05:35 PM

Floor shift, nss is on side of shifter.
Lokar bl1400 will not work due to oe range box.

So what i need to know is how do i use the 4l60e backup signal, i have the later 4 pin and 7 pin connector at trans and I have the 2 green wires from oe column mounted nss switch...Dk green has 12v when key on......

And this is where I'm stumped......

**DaHos** · 07-29-2018, 06:25 PM

This is all i got (disregard the white jumper wire)

Bigdav160 · 07-29-2018, 06:34 PM

When it is jumpered (key on) are the BU lamps on? AFAIK, they should be. The dark green would be the same as the pink on the diagram and the light green from the switch goes to the lt green in your jumpered connector.

**DaHos** · 07-30-2018, 08:50 AM

Yes BU lights worked prior the swap and still do when jumped......Just cant use the column mounted switch.

So would it be safe to say the power "pink" wire is feeding +12v to switch so the dark green would not be needed?

Just attach light green to light green?

ls1nova71 · 07-30-2018, 09:25 AM

Light green to light green (pin F) and dark green to pink (pin C). You most likely don't have that pink hooked up to anything since it's not needed in a stand alone engine rewire.

**DaHos** · 07-31-2018, 06:06 PM

well......pink has power from fuse panel, I hooked the Lt green from oe harness to Lt green pin F, turned key to on position and placed in rev, Lights came on.........but when I start the truck and put it in rev it kills the motor......ugh.....???? any ideas?

07-29-2018, 05:35 PM	#1
DaHos Senior Member Join Date: Sep 2011 Location: Owosso, Michigan Posts: 2,860	4L60e and backup lights Floor shift, nss is on side of shifter. Lokar bl1400 will not work due to oe range box. So what i need to know is how do i use the 4l60e backup signal, i have the later 4 pin and 7 pin connector at trans and I have the 2 green wires from oe column mounted nss switch...Dk green has 12v when key on...... And this is where I'm stumped...... __________________ 1967 C10 SWB Owner - Rustbelt Restorations

07-29-2018, 06:25 PM	#2
DaHos Senior Member Join Date: Sep 2011 Location: Owosso, Michigan Posts: 2,860	Re: 4L60e and backup lights This is all i got (disregard the white jumper wire) Attached Images __________________ 1967 C10 SWB Owner - Rustbelt Restorations

07-29-2018, 06:34 PM	#3
Bigdav160 Registered User Join Date: Apr 2011 Location: Klein Texas Posts: 3,852	Re: 4L60e and backup lights When it is jumpered (key on) are the BU lamps on? AFAIK, they should be. The dark green would be the same as the pink on the diagram and the light green from the switch goes to the lt green in your jumpered connector. __________________ My Classics: '72 K20 Suburban + '65 Dodge Town Wagon '72 Corvette Roadster +'67 Corvette Roadster '73 Z-28 Camaro '63 Ford SWB Uni Pickup '50 Ford Coupe

07-30-2018, 08:50 AM	#4
DaHos Senior Member Join Date: Sep 2011 Location: Owosso, Michigan Posts: 2,860	Re: 4L60e and backup lights Yes BU lights worked prior the swap and still do when jumped......Just cant use the column mounted switch. So would it be safe to say the power "pink" wire is feeding +12v to switch so the dark green would not be needed? Just attach light green to light green? __________________ 1967 C10 SWB Owner - Rustbelt Restorations

07-30-2018, 09:25 AM	#5
ls1nova71 Registered User Join Date: Dec 2009 Location: Independence Mo Posts: 4,119	Re: 4L60e and backup lights Light green to light green (pin F) and dark green to pink (pin C). You most likely don't have that pink hooked up to anything since it's not needed in a stand alone engine rewire. __________________ My '72 short bed build. http://www.ls1tech.com/forums/conver...6-0-4l80e.html 5.3 swap into my RUSTY '71 C10 http://ls1tech.com/forums/conversion...71-c-10-a.html

07-31-2018, 06:06 PM	#6
DaHos Senior Member Join Date: Sep 2011 Location: Owosso, Michigan Posts: 2,860	Re: 4L60e and backup lights well......pink has power from fuse panel, I hooked the Lt green from oe harness to Lt green pin F, turned key to on position and placed in rev, Lights came on.........but when I start the truck and put it in rev it kills the motor......ugh.....???? any ideas? __________________ 1967 C10 SWB Owner - Rustbelt Restorations Last edited by DaHos; 07-31-2018 at 11:02 PM.

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