Plug n Play Rock Light Harness with Courtesy Mode By DSIM Solutions

Current Status as of 4/22/21: Install Video is COMPLETE! Check out post #2. The first drop is planned for tomorrow evening (4/23). I will post here when the site is updated!

**This mod works off of the cab light switch. If you do not have a cab light switch in your trim of 3rd Gen Tacoma then this mod will not work for you... yet.



Base Relay Harness





This fully Plug N Play Rock Light Harness will save you a ton of time if you want to add rock lights to your 3rd gen taco. All of the guess-work is taken out as the Harness is cut to length and has 8 total leads to wire up 8 lights underneath your rig (compatible with short bed and long bed Tacomas).

To top it off this kit has an included T-Harness that plugs into your OEM Bed-Light Switch that brings courtesy mode to your lights. This will activate the lights whenever your cab light is on. This eliminates the need for a switch.

**Lights are NOT INCLUDED in this kit. Leaving you the freedom to select any brand/style you would like.

** Note: RGB lights that are controlled with a controller will likely not be compatible with this harness. Here is a link to the lights on Amazon we would recommend

$24 LED Rock Lights 4PODS Waterproof LED Neon Underglow Light for Car Truck ATV UTV SUV Offroad Boat Underbody Glow Trail Rig Lamp (White)

LINK.

Rock lights are controlled via Cab Light Switch.
Cab Switch OFF & Door CLOSED = Rock Lights OFF & Cab Light OFF
Cab Switch OFF & Door OPEN = Rock Lights OFF & Cab Light OFF
Cab Switch DOOR & Door CLOSED = Rock Lights OFF & Cab Light OFF
Cab Switch DOOR & Door OPEN = Rock Lights ON & Cab Light ON
Cab Switch ON & Door CLOSED = Rock Lights ON & Cab Light ON
Cab Switch ON & Door OPEN = Rock Lights ON & Cab Light ON

**For independent rock light control please see the added compatible switch harness. This will allow for rock light activation via a separate CH4x4 Style Switch. When the rock lights are activated the cab lights will not turn on.

Cost: $150 + Shipping
Link to website: 3rd Gen Tacoma Plug N Play Rock Light Harness – DSIM Solutions

Base Relay Harness with added Switch Harness





This is a fully plug n play add-on to the 3rd Gen Tacoma rock light harness that allows for independent control of your rock lights. When the lights are activated via CH4x4 style switch the cab lights will not turn on.

The relay module included converts the positive trigger from the switch to a negative to trigger the relay. The green plug on this harness connects directly to a CH4x4 style switch. Making it fully plug n play!

**Switch and Lights NOT INCLUDED. Rock light harness Sold Separately.

CH4x4 Style Switch OFF
Cab Switch OFF & Door CLOSED = Rock Lights OFF & Cab Light OFF
Cab Switch OFF & Door OPEN = Rock Lights OFF & Cab Light OFF
Cab Switch DOOR & Door CLOSED = Rock Lights OFF & Cab Light OFF
Cab Switch DOOR & Door OPEN = Rock Lights ON & Cab Light ON
Cab Switch ON & Door CLOSED = Rock Lights ON & Cab Light ON
Cab Switch ON & Door OPEN = Rock Lights ON & Cab Light ON

CH4x4 Style Switch ON
Cab Switch OFF & Door CLOSED = Rock Lights ON & Cab Light OFF
Cab Switch OFF & Door OPEN = Rock Lights ON & Cab Light OFF
Cab Switch DOOR & Door CLOSED = Rock Lights ON & Cab Light OFF
Cab Switch DOOR & Door OPEN = Rock Lights ON & Cab Light ON
Cab Switch ON & Door CLOSED = Rock Lights ON & Cab Light ON
Cab Switch ON & Door OPEN = Rock Lights ON & Cab Light ON

Target Cost: $25 Adder on top of $150 for Base Harness ($175) + Shipping
Link to website: 3rd Gen Tacoma Independant Switch Kit Add-On – DSIM Solutions

Base Relay Harness with added SwitchPro Harness





This fully plug n play add-on allows for independant rock light control from a switchpros setup.

The loose orange wire gets pinned to existing DSIM Rock Light Harness 4-Pin JST Connector, opposite end is the positive trigger for switchpros or similar setup.

**Further Detail for how to pin the loose wire into base harness coming soon.

** SwitchPros and Lights NOT INCLUDED.

Target Cost: $25 Adder on top of $150 for Base Harness ($175) + Shipping
Link to website: 3rd Gen Tacoma SwitchPros Add-On – DSIM Solutions

 

Install Instructions

 

Temporary PM List For Drop #1
** This is a temporary list I will upkeep to PM when the drop happens. This will not reserve your spot.
1. @Derrick2972 - x2 with SwPro
2. @ponts w SwPro
3. @P_Foto
4. @ClassyTacos w ch4x4
5. @stay_tuned
6. @npego
7. @DJFriar
8. @billy42
9. @TheTacoAdventurer
10. @FreshMexicanTaco w. ch4x4

 

Reserved x3**

 

Following

 

wanting to see how this plays out

 

would like to use this for a BED Light

 

Would be easy enough to tap off of one of the leads and send a pair of wires to the bed for that purpose. Good idea, that may be a future adder.

Would just need to make sure you plug the other leads if you don't run the rock lights as well.

 

i would prefer something to plug in ... i hate tapping anything other than ....

 

lol to the end statement. But it would be a simple "splitter" no tapping the wires. Can split off of the spade connectors.

I'll look into this, I could definitely have a PNP harness with or without a pressure switch offered for this purpose at some point if demand is enough.

 

I'm confused. Isn't this the bed light?



...and isn't the cab (dome) light switch up in the roof console.

2017 TRD-Sport - no bed light, no such switch as pictured

 

This harness works off of the cab light switch. Both the cab light switch and the a-pillar have the courtesy ground wire for courtesy mode. The cab light is easier to tap off of as it is not a PWM signal. This harness will only work if you have a cab light switch.

The other product I have (DomeRock V4) is tapping off of the courtesy wire to the dome light. That one is a PWM signal though so their is some circuitry on board to cancel that out. That is what you would need if you do not have the cab light switch, however no full harness available. And also requires the extra switch. I may try to tie them together at some point in the future.

 

This is awesome, looking forward to this PNP harness

 

@DSIM great work! Also, a great price considering everything you have included.

 

https://www.tacomaworld.com/threads/3rd-gen-added-lamps-to-cargo-sw.587660/

 

I got hung up on the semantics. What you call a cab light, I call a bed light. It's attached to the cab but lights up the bed. Meh.

Already have your DomeRock module. Wasn't able to work up enough ambition to mount the rock lights before winter hit.

 

Cargo/Bed Lights circuit switch. The cab light IS a PWM signal controlled circuit.

 

Plug-and-Play Switch Illumination Harnesses + Daisy Chain

 

This is great! Just have one question. What is the long term reliability those blade connectors, since they’ll be running under the truck?

 

Yes correct. The cab light itself is PWM but the wire tapped at the switch is not.