Dmh100bt Manual

[Jennell Venier]

Ihave a 2003 toyota rav4 and I'm trying to install a new Pioneer double din stereo. I've wired almost everything up correctly and it runs without any issue, except the stereo always thinks that I'm driving, i.e., it thinks that the parking brake is always disengaged. This means that I can't use certain functionality in the stereo.

The instructions in the Pioneer manual say that the light green wire should be connected to the power side of the parking brake switch, however, the switch in the picture only has one wire coming out of it (the red and black one). Thus, I assumed that the red and black wire must be the power in side. As you can see, I connected the light green and red/black wires using a wire tap connector.

How does the parking brake switch even work? What happens when the parking brake is pressed down? Does that close a circuit, thus grounding the red/black wire? Shouldn't the switch have a ground wire coming out of it somewhere (it only has the red/black wire)? Or since the switch is connected to the metal chassis does it not need the additional ground wire?

I read something about Pioneer stereos requiring a high-low-high signal in the green wire at a particular frequency, this is pretty confusing to me and it's very hard to find documentation on the subject.

Holds a 3V signal when the stereo is on. When the green wire is grounded, some stereo functionality will be opened up. You can test this by touching the green wire to the chassis and watch some stereo buttons fade in and out.

It's been suggested that simply grounding the green wire is all you need to do to get the stereo to function properly. Although this will work in some cases (in the limited testing I did), it will fail to provide the high-low-high signal when needed, thus disabling some stereo functionality .

In some cases when starting up the stereo, the Pioneer will give a prompt saying that you must pull the hand brake up, down, then up again, in order to use a particular feature. This is the high-low-high signal the Pioneer needs.

I have an AVH3100-DAB and all I needed to do to be able to watch videos was to tie the light green wire to the grounding (black) wire. Turns out there was a red connector attached to the end of the green wire, much like a bridge. Basically deisolate the black wire for a few millimetres and insert that portion into the red bridge, and voila!Of course, you can attach the green wire to the handbrake signal wire too, if you want to be unable to see videos while moving, which is safer.

If you have a newer poineer, you may not even need this wire. There's a secret hidden button on the home screen that unlocks video functionality while driving. As for the double-tap with the parking brake, you can buy a small chip from Mesa that does that for you. I have mine wired with it. Be aware it will still keep that annoying driving warning at the beginning.

Availability of non-Pioneer content and services, including apps and connectivity, may change without notice due to changes in operating systems, firmware or app versions; changes to, restrictions on or discontinuation of the service or service plans; non-Pioneer hardware changes; or other events.

Caution: Read the operation manual as well as all instructions and cautions before use. Pay attention to the road, limit glances to the device, and do not use any feature if it cannot be operated both safely and legally in your location and environment. Distracted driving may result in serious injury, including death. Certain functions such as video playback and keyboard input are restricted through a parking brake interlock system.

Ok, had my Z120BT installed this past weekend and went into the settings page and of the 6-8 options available on the settings page 3/4 of them are greyed out (nothing happens when I touch them), only AV Audio and one other option are in full color (and work when I touch them). Why is this?

Yeah, I know, but this guy did my install "on the side" and agreed to do the bypass for me before hand. I even provided him the pic and description from the bypass thread on this forum . . . somehow he goofed it up, which isn't giving me a lot of confidence about the rest of his install -- don't get me wrong, I was there for 90% of it, and his interior tear down and speaker wiring (had him install six new speakers, two of which were in new/fabricated locations) and amp install skills were good based upon my un-trained eye, but I think this may have been the first time he installed a head unit/nav of this complexity.

i really cant understand how so many people have problems following the instructions here, there is really only three steps, ground the p-brake wire, move the mute wire and then ground the mute wire, if somebody cant follow those steps with out messing it up (and believe me there are sooo many people who cant), then they really dont have any business behind the dash board.

i would say that the most common issue people have is the they move the mute wire to the wrong pin or that they dont push the mute wire in all the way, but this is very easy to identify, as there will be a "incorrect connection of p-brake" message, and that the unit will work while stopped but after you get up to a certain speed it cuts off, if you are not getting one (or both) of these issue, then you problem is different.

I've tried starting up the engine and having my foot on brake and ebrake pulled as far back as possible, yet all the options are still greyed out. Possibility my mechanic could of done a wrong bypass... he just told me he made it so the car doesn't have to be parked to make use of the navi

Only none greyed out variables on the console are my AV source and like a few random things in the navigation area... can't pair my phone or anything... I know the bluetooth works and the gps works simply because my phone see's the console, and I can see where I'm going on the map... just can't manually input addresses or anything -.-

therefore I can't do anything about the settings until monday since he's busy. this sucks... is there any pictures or anything that show how to connect the brake cable? I could do it myself, just don't see anything mentioning that step in the installation manual

It even shows a picture of a parking brake and a sample diagram. I'm sure the Z120 manual is nearly identical. Are you sure you aren't looking in the User's Guide? You can download the Installation Manual from Pioneer.

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