A short to ground. Check wiring/sensor for damage.
Tail light assembly short
it can be caused by a bad alternator
There must be a short in the system somewhere that causes the fuse to blow.
could be the fuse
This is the starter fuse I am talking about. It doesn't blow every time. It might go weeks before it blows again.
to many plugs in at once or old circuits ECT.
On a 2003 Land Rover Discovery, the O2 sensor fuse is located in the engine compartment fuse box. Specifically, you should check the fuse labeled "ECU" or "Engine Control Module," as it typically protects the oxygen sensor circuit. Always refer to the owner's manual for the exact fuse diagram to ensure accuracy.
there is a short some where check the wires as well as the oxygen sensor.
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Ck the heater fan motor resistor .
In a 2003 Toyota Solara, the oxygen sensor is protected by the EFI fuse, which is typically located in the engine compartment fuse box. This fuse is responsible for powering the engine's electronic fuel injection system, including the oxygen sensor. If the fuse is blown, it may lead to issues with engine performance and fuel efficiency. Always refer to the owner's manual for specific fuse details and locations.
Need to know which 20 Amp fuse is blowing.