Were to access tail light wiring harness 2008 Denali Envot

If front park lights are working highly unlikely headlight switch is the issue. Is the vehicle equipped with a trailer towing package and wiring to the rear? I would start there. This vehicle may also have a taillight module located under the vehicle on the passenger rear attached in the wheel well area that goes bad

If the brake and turn signal are on the same bulb than you can Orin straight wiring. If the brake and turn signal are on different bulbs than you'll need a wiring harness with a converter box. I'm pretty sure the wrangler has the brake and turn signal on the Same bulb so let's start with basic trailer wiring. The green wire on the trailer harness is for the right side turn and brake for the trailer. This wire should be attached to the wire on the vehicle that supplies power to the right turn signal/ brake light. The yellow wire is the left turn signal, brake light on the trailer and should be attached to the wire on the vehicle that supplies power to the left turn signal /brake light. The brown wire is the tail lights on the trailer and should be attached to either the left or right side wire on the vehicle that supplies power to the tail lights. The white wire is grounD and it is vitally important that this wire be attached to the vehicle in a manor that supplies a good ground. Failure to suppy a good ground will result in all kinds of funky problems with the trailerer lighting such as all the lights linking when the tail lights and turn signals are on at the same time. If you have any specific questions I will be more than happy to try and help. Good luck.

I’m happy to assist further over the phone at https://www.6ya.com/expert/jeremy_d728a59f986299fa

You need to install a 3-2 wire converter. I suggest a CURT 56175 then
1.Using a test lamp, identify the corresponding wires in the harness for the left turn, right turn, tail lights and brake lights. 3. Temporarily remove the vehicle's negative battery cable from the battery. 4. Using wire taps, attach the input wires of the tail light converter to the corresponding vehicle harness wires identified in step 2 as indicated.
Converter Brown Wire: Tail Light Circuit Converter Yellow Wire: Left Turn Circuit Converter Red Wire: Brake Light Circuit Converter Green Wire: Right Turn Circuit
5. Locate a suitable mounting location for the ground eyelet on the vehicle near the converter on vehicle's frame or cross member.
And your ready to tow!

The circuit board needs to be replaced. Which is the board that the bulbs sit in. If you remove the turn signal bulb. You will notice the bulb socket will be slightly burnt inside. I had the same problem with my 99 Denali and replaced the circuit board for $35.00. Now everything is fine.

The very simplest thing to do is put a light bar on the Rodeo and not mess with its wiring harness. Wire the light bar through a plug that matches your towing venicle outlet.

A light bar is also much more visable.

Just a thought.

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If you have a wired tow hitch on your car you will need to mate this to the wiring harness on the tow bar. If the two wired units do not match then you will either need an adapter or will need to rewire the tow dolly or the car. If the car doesn't have a tow light unit installed you will need to install one that will mate to the tow bar light unit.

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If this is a factory light harness for the trailer hookup on your Caravan. Look under the hood for a fuse box. Many 2000+ vehicles have this with separate fuses just for the trailer lights.

Um...no...in order to tow you need rated tow-cable or shock absorbing chains or a tow hitch. you would also need hazard lights that also show which way the towed vehicle is turning (ppl cant see the towing car's turn signals) usually there are magetics ones that hook up to the towing cars trailer light system.
Safe towing by LAW is the issue here...could you tow it with a dolly...yes...but is it against the law..YES and the LAW protects you from hurting yourself,others, and property.
I hope this answers your question. and please be safe. (dont do it)
8-)

The connectors for towing wire harnesses on foresters are generally on the passenger side, below the rear taillight inside the cargo space. some require pulling up the foam block that is between the spare tire compartment and the taillight. Check where you replace the tailights from inside the car, if there isn't a matching connector hanging out there, check around the spare tire compartment, see if you can remove the carpeted foam block next to the compartment and find the plug under there.

The tail lamps will have to be removed first of all. You will need a test light to check all wires to see which one is for what usage. Have a friend to operate the switches inside while you test each wire and mark the wires with tape for what they are used for. Signal lamps must be marked for which side. Brake lights make no difference as so for back up lamps. The directions are incorporated with the 4 way flashers