Fog Light Relay Malfunction Symptoms, Diagnosis, and Replacement

Kinda head-scratching, as OP is saying the bulbs are blowing, but the fuse(s) aren't... a halogen bulb is basically a controlled short circuit, ... Check polarity. LED's are picky. If they're hooked up backwards, they won't light. Condensation could cause a short circuit and cause a fuse to blow but thats pretty rare. The fuse would blow (even a higher amp one) before the ... Something in addition to your foglight bulb filaments is closing (i.e. connecting) the circuit between battery positive and ground. If your ... If a 15A fuse is blowing, there's a major problem. Best case the short is near or in the connector, which is the highest resistance part of the ... Another test is to measure the resistance between the chassis ground, and the grey wire with the fog lights OFF. That is after you read zero ... On the other hand, you mentioned that the driver side is shorted to ground. If wiring were fine, that should cause the passenger side to show ... Your best, safest, most reliable current-tapping bet is to tap the battery or alternator directly, or to run a separate fuse/relay off the ... The problem is from that connector to the fog light and is probably a wire gone to ground somewhere when it wants to carry 12 volts to the fog bulb. As the title says; have replaced about 4 fuses now but again and again after 4-5 minutes of use the fog lights shorten out.