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2011 Toyota Corolla Radio Steering wheel control

Tiny
CARLOS9219
  • MEMBER
  • 2011 TOYOTA COROLLA
  • 1.8L
  • 4 CYL
  • FWD
  • AUTOMATIC
  • 32,000 MILES
My car is a Toyota Corolla S 2011 I recently changed the factory radio unit with a aftermarket unit that has steering wheel control compatibility. Her is the problem the plug for the steering wheel control that came with the new radio is 20 pin plug and the one that my car has is a 28 pin plug. So I need the radio wiring schematics whit the color combination of my car so I can connect the radio steering wheel control cables of the new radio directly to the interface of my car all I need from the 28 pin plug of my car are 3 cables but I need those schematics so I can know witch are the cables I need to connect and combine.
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Wednesday, February 26th, 2014 AT 7:33 PM

11 Replies

Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Why don't you see if there is an adapter from one plug to the other so you just plug and play there probably is. Trouble is there are three radios, NUMMI made, TMC w/navigationand TMCw/o navagation
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Thursday, February 27th, 2014 AT 6:14 AM
Tiny
CARLOS9219
  • MEMBER
  • 7 POSTS
I have already searched every place I can find and they all tell me that there's is no adapter for that. That I have to connect it directly to the interface that's why I need the schematics with the wires colors. Here are pictures of my factory radio w/o navigation. Is it TMC or NUMMI? HOW CAN I KNOW?
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Thursday, February 27th, 2014 AT 8:17 PM
Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
You'll have to find the code on the car an call Toyota to find out none of your pictures turned out either.
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Friday, February 28th, 2014 AT 7:20 AM
Tiny
CARLOS9219
  • MEMBER
  • 7 POSTS
I send you the pictures of the radio again along with the plaque of my car with the Vin number is says manufactured by Toyota Motor Manufacturing Inc in Canada and the Vin number is 2T1BU4EE6BC707377
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Friday, February 28th, 2014 AT 3:32 PM
Tiny
CARLOS9219
  • MEMBER
  • 7 POSTS
Do you have an email address I can send you the pictures because the page won't upload them.
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Friday, February 28th, 2014 AT 3:42 PM
Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Avin won't helpme sorry we can't help you
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Friday, February 28th, 2014 AT 3:54 PM
Tiny
CARLOS9219
  • MEMBER
  • 7 POSTS
I went to the Toyota Dealer and the checked and yes my car is TMC w/o navigation so please send mi the schematics.
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+1
Saturday, March 1st, 2014 AT 6:15 AM
Tiny
CARLOS9219
  • MEMBER
  • 7 POSTS
The radio model is 86120-02D20
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Saturday, March 1st, 2014 AT 6:18 AM
Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Here they are good luck
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+5
Saturday, March 1st, 2014 AT 6:59 AM
Tiny
SAPPER5555
  • MEMBER
  • 2 POSTS
Did you solve your problem?
I have exactly the same problem on my Corolla 2011.
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Thursday, July 10th, 2014 AT 4:45 AM
Tiny
SAPPER5555
  • MEMBER
  • 2 POSTS
I have exactly the same problem.
Same car, same year, except the radio is model, 86120-02D40 instead of 86120-02D20.
Can I use the same diagrams? If yes can I get the prints, I can’t read the ones you posted.
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Thursday, July 10th, 2014 AT 5:53 AM

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