2008 Highlander steering wheel radio controls not working

Group using the TO1 and TO2 firmware * see specific firmware for full feature list.
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jkilyk13
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Joined: Thu Sep 13, 2018 3:04 pm

2008 Highlander steering wheel radio controls not working

Post by jkilyk13 » Thu Sep 13, 2018 3:55 pm

Sport Edition w/o JBL. Connections good, green light, showed that it flashed ok but no functions on steering wheel. Light does not flash when buttons are pushed.

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Dara DeGrand
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Joined: Mon Dec 02, 2013 1:34 pm

Re: 2008 Highlander steering wheel radio controls not working

Post by Dara DeGrand » Thu Sep 13, 2018 3:58 pm

Look in the box that the TO1 harness came in. You should have a 20 pin plug that came separate inside that box. It's about 4" long, with a big white plug on one end, and a small plug on the other end. Plug it into the car, and into the t-harness.
Dara DeGrand
Maestro Technical Support Manager
Automotive Data Solutions Inc.
8400 Bougainville, QC
T 514.807.2888
TF 866.427.2999

jkilyk13
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Posts: 2
Joined: Thu Sep 13, 2018 3:04 pm

Re: 2008 Highlander steering wheel radio controls not working

Post by jkilyk13 » Thu Sep 13, 2018 4:36 pm

Thanks. i do believe i have that connected. The head unit does work fine however it just does not have the wheel controls.

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Dara DeGrand
ADS Team
Posts: 5135
Joined: Mon Dec 02, 2013 1:34 pm

Re: 2008 Highlander steering wheel radio controls not working

Post by Dara DeGrand » Thu Sep 13, 2018 5:22 pm

The signal from the steering wheel controls is on that plug... So if you have no blinks when you press a steering wheel button, that's the first thing I'd check.
Dara DeGrand
Maestro Technical Support Manager
Automotive Data Solutions Inc.
8400 Bougainville, QC
T 514.807.2888
TF 866.427.2999

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