2002 jeep wranger ignition wire

Howie that makes sense. There was even a WHITE/ red wire thats was another accesory. That was not listeds anywhere. I didn't want to wire up a relay but everything looks great. I should of checked if the WHITE/ red actually showed power on rs. Maybe it didn't need to be powered by the rs which is why nobody lists it.

Stop shopping, you have too many accessories Now that you know what's hot or not during cranking, find out what's hot or not with the key in the acc position. Pretty interesting you haven't found any wires other than the blue that's hot during cranking and you've tested that as hot in the acc position. But as howie was saying, find and connect what you need for things to work the hell with the rest of it.

I can think of one BMW where three extra wires exit the ignition switch. No idea what they're for, never connected them and no one lists them. As for accessories, I think I now have 4 Wellers!

Well in that truck the Ignition is hot in acc position as well ad acc obviously. My question really was.. lets says this WHITE/ red wire is another ACC or IGN wire.. Nobody lists the wire on any wire guides.. and everything works perfectly.. I have seen issues where if 2nd ignitions aren't connected in a 2000 dakota that the transmission computer doesn't communicate with the PCM and threw a CEL (even though the car would start). Also when that 2nd ignition wasn't connected another issue was that the car would not show it was in park (something with the TCM).. So basically my point is.. how do I know this mystery WHITE/ Red IGN or ACC isn't required (I guess the ACC is never really required unless reasons stated above, bmw...) So let's say it is an Ignition wire, even though everything is working and all I hope there won't be issues.

In theory if it goes hot only on ignition and run, then it isn't essential for a remote start. If on the other hand it's hot on ignition, CRANK and run, then connect it.

jsigna wrote: Nobody lists the wire on any wire guides.. and everything works perfectly.. I have seen issues where if 2nd ignitions aren't connected in a 2000 dakota that the transmission computer doesn't communicate with the PCM and threw a CEL (even though the car would start). Also when that 2nd ignition wasn't connected another issue was that the car would not show it was in park (something with the TCM).. So basically my point is.. how do I know this mystery WHITE/ Red IGN or ACC isn't required (I guess the ACC is never really required unless reasons stated above, bmw...)

That's an area where factory wiring diagrams come in handy to identify where wires go. In general ignition wires break down into 3 sets 1. Hot in RUN and START 2. Hot in RUN only 3. Hot in ACC and RUN The first obviously are ones you want to connect. The second are ones you want to connect as well because things like the heater/AC will be on such a wire. The last one is what would be a true accessory (in the key sense of the word - see note below) and least likely required when the car is running - it'll power trivial stuff like the radio. Note: Definition of Accessory differs depending on view point. From the driver perspective, Accessory is the ACC position on the ignition switch. From the remote start perspective, Accessory is a power lead that drops out during cranking (e.g. the HVAC system)

That answers what I wanted to know. So basically 1 and 2 wire up as they are ignitions wires for the RS. The 3rd one is technically optional for most cars.. but necessary (acc wires). To determine if IGN or ACC test if voltage drops at crank or not. Golden. Thanks!

Not quite. 1) goes hot on ACC and IGN drops on crank = live on run = ACC 2) goes hot on IGN, Crank and run = IGN 1 3) goes hot on IGN cold on crank, hot on run = IGN 2.

howie ll wrote: Not quite. 1) goes hot on ACC and IGN drops on crank = live on run = ACC 2) goes hot on IGN, Crank and run = IGN 1 3) goes hot on IGN cold on crank, hot on run = IGN 2.

What is your difference between ign and run? I haven't seen a car that has an ign position and a separate run position. Also in what way are you referencing ACC, IGN 1, and IGN 2? Car labeling or remote start labeling? To not confuse the blue ignition on the jeep would be Ignition 1 yes?

Howie is saying for 3 that if cold on ACC, hot on IGN, cold on crank, hot on run that is would be an ignition 2. Clearly not an acc as it is cold on acc. But what is the diff between ign and run??