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Old 11-18-2021, 05:20 PM   #1
SatsuMX
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Member#: 475898
Join Date: Oct 2017
Location: Mexico
Vehicle:
2005 Legacy GT

Default Rear lights turn off after a few seconds?

Car: 2005 Legacy GT

Car has a weird issue: when I turn on my lights, everything works fine but after about a minute or two, the rear lights turn off. Brake and turn lights work fine, just the rear lights turn off and don't come back on even if I switch them off and back on, or if I turn the car off.

They then seem to work normally after the car has been off for a while. Any idea?
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Old 11-22-2021, 04:13 PM   #2
SatsuMX
Scooby Newbie
 
Member#: 475898
Join Date: Oct 2017
Location: Mexico
Vehicle:
2005 Legacy GT

Default

Huh well the stop lights and rightside blinker don't work now. So yeah, this screams that there's a short somewhere. Also found the SBF#05 fuse blown up, and I've found more than one melted connector.

Previous owner did some really crap work on this car :/
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Old 11-24-2021, 09:02 PM   #3
Cougar4
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Join Date: Jan 2004
Location: Anchorage, AK
Vehicle:
2001 LL Bean Outback
Winestone

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The brake and turn signal lights consume more power than the running lights do, so that kind of means there is a ground wire possibly heating up when the lights are on which creates more resistance in the circuit and a voltage drop in the line. The lower power lights will go out sooner. The problem could be with the power side but I think that side has separate sources to power and the common point is the ground side for the lights.

Fuse SBF-5 supplies power to a lot of engine components but I don't believe the lighting circuits are on that fuse. Sometimes the heater wires to the O2 sensors touch the exhaust pipes and can cause a short to occur. The melted connector most likely means a bad connection to power was happening and heat caused the damage. Try to find out what wire connector was damaged and what that wire provides power to.
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