LoJack removal

[hpwjr]

I have discovered I have LoJack connected. Apparently from a previous dealership. I bought the vehicle with 11000 miles on it. I want a clean OBD2 port to put a splitter on. How do you remove LoJack? It is somehow connected to the OBD port.

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[Abraham5G]

Do you have a picture of it?

 

[HammaMan]

It's probably one of those $20 specials too many dealers try and force onto customers using the OBD2 port only. More advanced systems will either hijack a wire to disable to the vehicle or use a harness to do so. Just start following wires. It's most likely just a cell modem plugged into the obd2 port or Y'n it.

 

[hpwjr]

The obd2 port itself looks like it’s wired into another OBD2 port. I can see how to cut out the LoJack but I’ve never seen two OBD2 ports before. One is male the other female.

 

[HammaMan]

The OBD2 port connector just pushes back through the metal slot by depressing the 2 tabs. They've backed out the factory one, added their jumper to it, and put their jumper OBD2 connector back into the factory slot.

First things first, unplug this and make sure the truck still operates fine

It looks like this is simply a tracking device and not connected to anything else.

If such is the case, just remove their junk and put your OBD2 connector back into the factory slot

 

[hpwjr]

The white OBD plug that I’ve marked ”A” has only a few wires coming to it. The only plug I’ve found that’s fully populated is the white main OBD. I can’t seem to locate the OEM OBD plug.

 

[HammaMan]

Xs = junk they added, your OBD port is checkmark yellow

 

[hpwjr]

That’s what I would think, but do you see that there’s only around five or six wires coming to it? Is that right? I thought the plug should be fully populated with wires.

 

[HammaMan]

Power, 2 grounds and 2 can bus networks

 

[mwheue]

If it is a spirion see attached.

 

[HammaMan]

If it is a spirion see attached.

Damn, so lojack has resorted to selling that useless junk ? Might be useful against a thief with an IQ of 80, but with one that dumb, how'd they get the car in the first place.

Nobody showing up to steal a $50k+ vehicle using any amount of tech is going to be foiled by OBD powered device. That's as useful as putting a "I support bail reform" sticker on the car.

 

[mwheue]

Considering it took me all of two minutes to find that info, I would never buy it...

 

[hpwjr]

So the OEM OBD2 port has only five wires going to it? I’m amazed. That’s what was throwing me. I was expecting a fully populated plug. The LoJack plug has a full compliment of wires that I guess simply go from nowhere to nowhere.

 

[PT's21-3.5]

That's most likely just a tracking device installed by the first dealer. Buyer doesn't pay, dealer can find vehicle so as to repo it. The jeep I bought used had one. I removed it and haven't heard a peep.

If it's more than port to port wiring, it will probably be a single "to / from" wire. Simply remove the to/from wire and the two remaining factory harness connectors will plug into each other.

 

[hpwjr]

That’s what it is. I took it all out. The five or six wire OBD2 port cause me to doubt the original port. Everything works great now.

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