Rear running lights not working on 2005 Dodge Magnum

The 15 amp fuse was replaced 7 times in 10 days to keep the running lights working at night. A mechanic replaced it with a 20 amp fuse. It worked for 2 weeks, then blew. Is the answer in new software diagnostics or the battery? Or is it something else?

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1 answer
Fuses blow due to circuit issues - such as melted wiring, crossed wiring, damaged wiring insulation, etc. Software and the battery are not possible causes. Frankly, putting a higher amperage fuse in to keep operating is reckless and dangerous (unless you like car fires..)

Have the circuit wiring traced point to point. Disconnect wiring connectors, check for short to ground, short to power, etc.