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2007 Toyota Tacoma Airbag light is on and has code B1801

Customer Question
2007 Toyota Tacoma Airbag light...
2007 Toyota Tacoma
Airbag light is on and has code B1801 Open in D Squib Circuit
Submitted: 5 years ago.Category: Toyota
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Answered in 4 minutes by:
4/25/2012
Toyota Mechanic: Toyotapro, ASE master tech replied 5 years ago
Toyotapro
Toyotapro, ASE master tech
Category: Toyota
Satisfied Customers: 9,974
Experience: ASE Certified, 10+ years Lexus and Toyota Certified
Verified
Hello and thank you for using just answer! Good news here, toyota is in process of launching a new recall on this truck for the issue. Time to go to the dealer for a free repair.
Toyotapro
Toyotapro, ASE master tech
Category: Toyota
Satisfied Customers: 9,974
Experience: ASE Certified, 10+ years Lexus and Toyota Certified
Verified
Toyotapro and 87 other Toyota Specialists are ready to help you
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Customer reply replied 5 years ago

Truck has PO500 vechicle speed sensor malfuction \

 

The truck also continues to blow a 10A fuse under the dash marked IG1, the air condition and 4X4 seem to share this circuit, because both become inactive when fuse is blown. Why is this happening?

Toyota Mechanic: Toyotapro, ASE master tech replied 5 years ago
Ok so multiple issues. Does this truck have anything aftermarket wired to it?
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Customer reply replied 5 years ago

No, the the costumer uses it has a farm truck.

Toyota Mechanic: Toyotapro, ASE master tech replied 5 years ago
Have you closely inspected the undercarriage for any wiring damages around the transfer case and front differential?
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Customer reply replied 5 years ago
where is the sensor located that would set the p0500 code?
Toyota Mechanic: Toyotapro, ASE master tech replied 5 years ago
There's no such thing, the speed input comes from several sources.
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Customer reply replied 5 years ago
where are the several sources located that we may inspect these locations?
Toyota Mechanic: Toyotapro, ASE master tech replied 5 years ago
The truck uses each of the 4 wheel speed sensors and the wiring that runs from them, be sure to check the front hubs for freeplay that can damage the rotor sensor inputs. These sensors input to the computer under the dash and then sends signal to the instrument cluster. If an interruption occurs at any point it will set this code.
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Customer reply replied 5 years ago

this code doesn't pertain to a specific sensor? just speed sensors in general?

Toyota Mechanic: Toyotapro, ASE master tech replied 5 years ago
Yep, it's rare for any p code to directly point to one thing on a toyota, you need a scan tool that can read abs data
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Customer reply replied 5 years ago
we have a snapon verus. what should we look for.
Toyota Mechanic: Toyotapro, ASE master tech replied 5 years ago
The speed input from each of the 4 wheel speed sensors first
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