why wont a toyota tundra go out of park after an auto start installation

2009 TOYOTA TUNDRA
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TRACEYKEATING-CLEMENTS
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My boyforiend installed a Viper Auto Start on a 2009 Toyota Tundra and now the truck wont come out of Park! He has checked all the wires/fuses, everything is ok...any suggestions??
Sep 19, 2012 at 5:37 AM
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ASEMASTER6371
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check brake light switch. it has to send a signal to the interlock to release the shifter.

Roy
Sep 19, 2012 at 5:50 AM
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TRACEYKEATING-CLEMENTS
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Thanks, I will get him to check that, are there any other suggestions as to why it wont come out of park?
Sep 19, 2012 at 6:18 AM
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KHLOW2008
  • ✓Experienced Mechanic
  • 41,812 POSTS
The interlock system is not working correctly causing the shift lever to be stuck. Check for a blown brake light fuse and the auto start installation. You could also have a ground circuit that has not been secured.
Sep 19, 2012 at 3:26 PM
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