wilsont1988

Putting an aftermarket stereo into my 08 TL Type S trying to use the Axxess ASWC adapter to keep my steering wheel controls. I installed it and it doesn't seem to be detecting the steering wheel control wire. I've followed the instructions in that I've connected the following:

* Black of ASWC-1 to ground(Pin 11) of the radio harness
* Red of ASWC-1 to 12V ignition(Pin 2)
* Gray/Red of ASWC-1 to Pin 3(Pink wire)

This is from following the instructions here:
https://metradealer.com/files/aswc/ASWC-1_INST_13.pdf

When I turn the ignition, it goes into it's auto-detect mode and when it finishes, it goes into a slow green/red flash, indicating it didn't detect the vehicle. All the green flashes are short flashes, which indicates it isn't detecting the steering wheel wire. The 4th flash should be a long flash indicating the gray/red wire is connected. I'm pretty sure I have the right wires, since the adapter does turn on and to into programming mode, and I found another document somewhere(can't find it now) that confirms it should be the pink wire that gets tapped into.

I initially crimped it with a butt splice crimp, then I tried a wire cap, and multiple times with just the wires twisted together to make sure that it wasn't the connection that was causing the issue. Now I'm wondering if I maybe yanked on the wire too hard when I first installed the thing and pulled it out somewhere upstream.

Is there a way I could test that the pink wire is actually connected? I have a voltmeter I can use.

Any help would be appreciated.

LoveMyTL-S

Anyone?

wilsont1988

Bump on this - anyone experienced this? Anyone who has successfully installed one of these in an 07/08 TL? Been driving around without steering wheel controls which isn't too big a deal but would be nice to revisit this eventually.

christianx47

check out this guide https://mobilemaxcaraudio.com/knowledge-base/

spy_mdx

I ran into a similar issue trying to wire the ASWC-1 for my 2009 MDX. After going through various posts and axxess/metra troubleshooting guides, I found a metra document that suggested that the vehicle's audio remote (steering wheel control) ground might also need to be grounded to chassis. What I did to get it to work was this:

ASWC-1 black wire + vehicle audio remote ground connected stereo ground (black)
ASWC-1 red wire to stereo 12v ACC (red)
ASWC-1 gray/red wire (this wire will vary depending on your vehicle) to vehicle audio remote signal wire (aka steering wheel control wire)

Until I wired the vehicle audio remote ground to the stereo ground, the ASWC-1 was never detecting the gray/red wire connection to the vehicle audio remote signal wire. It would cycle through all the green LED's with a quick flash. My guess is that the vehicle audio remote needed to be properly grounded in order for the audio remote signal to be available.

If you have not tried grounding the audio remote ground wire, give this a go and see if that resolves it.