Another update this weekend…
As most of you who know me, I don’t like to do things half-ass and would prefer to no do it at all then to do it poorly. I’ll admit to something being temporary and drive around with no glove box lid and no interior as long as I have to, to get the job done right!
Yes, that picture of the switch module internals was how I used the HFL and Voice Activation buttons for over a year! It took some time to pull the trigger on JDM switches and the ever elusive Acura / Honda connectors. The switch module itself requires a 5 pin (normally Green) type connector that Honda normally uses for electronics. This connector I had. Unfortunately, I didn’t have the 4 additional 5 pin connectors required for the 4 JDM switches. Yes, I could have opened them up and soldered wires to the pins, but does that sounds like something I would do?
I have to shout out to jptl04 from tl.acurazine.com. I noticed his 2004+ Non-Navi to Navi installation post. He had purchased the wiring harness from Acura and pulled all the connectors / wires that he needed for his conversion and left the rest. I PM’d him and was surprised that he knew who I was and that he referenced this post as his “inspiration” so to speak that the conversion was possible even though few at that time thought it possible. He rounded up all the green connectors (and 12”+ of wire) including 5, 6 and a 10 pins and sent them to me at no charge. What a class act. Thanks again my friend!
I removed all the wires with pins from all the green connectors. I sorted all the colors and made 4 groupings of colors. Electrically, I found the pins for the momentary short and the illumination. There is also a short activated light when pressed. I’ll have to speak to Ken (D’ecosse) about that… I put together 4 x 5 pin connectors to prepare for the soldering work.
Here are the connectors with wires / pins and ready for soldering
Here is the TL Steering wheel switch module – notice the holes for the illumination bulbs
Here is a shot of a JDM switch, all the original TL buttons and module in the foreground. I’ll ask anyone who is looking at this to think of a solution to get those pictures on the JDM switches somehow. My only thought is to take a JDM button face, mold it and create 4 new faces with each of the 4 pictures… any ideas?
The JDM buttons have 2 bulbs inside. Ignoring the middle white one, I swapped a blue (rubber) filtered bulb onto the JDM clear bulb socket to create an OEM green to match the rest of my illumination.
Labeled all the connectors, the black one is the “Back” or “cancel” button.
2 connectors soldered. Everything was so small, I wish I had clamps, etc. I ended up feeding the solder with my mouth! Solder iron in one hand, wire in the other while blowing to cool and solidify the solder through my nose! My wife now thinks I’m a complete retard!
All 4 connectors soldered as well as the 2 illumination wires from the rear (White / Black wires)
Wires taped up and ready for test fitting
For each JDM switch, I popped the button face off to remove the Orange filter and replace the clear bulb with a blue filtered one. The green housing is the JDM, the blue are from the 04 TL
Test fit one JDM switch in the frame
Full assembly ready for install. That’s as OEM as it’s going to get, I even added some padding…
Finally installed!
I’m still missing 2 blue bulbs, when I get those, I’ll update my Blues post with all the illuminated pieces.
D’ecosse, if you’ve read this far, LMK what you think. The short that the JDM buttons perform, show a specific resistance value that is sent back to the HFL or Nav system. I assume that some voltage must be sent from the units. The button short also shares the circuit for the middle bulb light. I.e. when you press the button, the Green / Blue light shows that its’ depressed. I’m worried that if I run 12v through it during a short to laminate the bulb, it will affect the Ohm resistance or affect the button voltage it shows to the Nav and HFL… what do you think?