Brake light fuses constantly blowing

Asked by GuruX6WDR Nov 16, 2018 at 01:16 PM about the 2008 Toyota Sienna LE 8 Passenger

Question type: Maintenance & Repair

I have a 2008 Toyota Sienna LE and the brake light fuses constantly blowing i
am using 10 amp fuse what is indicated to use I have replaced the brake light
switch made sure bulbs are good opened back side paneling to check on wiring
to make sure wires was not grounded but can't find problem i would appreciate
any suggestions

2 Answers
22,630

Guru9FSV8 answered 5 years ago

Pull a wiring diagram off bbb industries and look for a short to ground. Chewed wires? Green crusties on circuit? You will have to follow circuit wires and check any component on that circuit. Lights, brake switch, connections. A visual inspection sometimes leads to detection. Again look for green corrosion along circuit. Wiring harnesses have any rub through on engine or metal surfaces?

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10

Steve_H answered 5 years ago

Check for moisture in your lamp housings (both sides and center high mount). Moisture induces leakage and excessive current draw.

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