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Firewall Mistake?

Old 07-22-2017, 04:49 AM
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Join Date: Jul 2017
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Unhappy Firewall Mistake?

2015 Toyota Camry LE drilled through the firewall under left side dash between emergency brake and brake peddle near left foot rest. After drilling my tracking light,brake light and emissions light has been on. Brakes will not engage. What wire could I have hit behind the firewall to cause this?
Refer to the link below. I drilled in the exact same location. Can't find any diagram of wiring behind the firewall to know what might be there. How can this be undone or fixed? Any ideas? Thanks

Old 07-23-2017, 10:57 AM
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Join Date: Jan 2008
Location: PTW
Posts: 11,739

You need to find the damaged harness and repair the wires. The harness may have a host of wires, some now broken, others shorting together. To guess at what wires are affected is pointless.

Stick a rod through the hole and view both sides of the firewall. Then find what wiring could have been hit by the drill and where.

Inspect that area for damage when found, peel off protective tape to view damaged wiring and repair.

Once done check all fuses.
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