Right side bumper indicator stopped working last night. Changed bulb this morning but still not working. Indicator signal on the dash is flashing really fast.
Follow the wiring looking for a broken wire. If the bulb is good, then its either that or a broken connector. If it was a relay or anything I assume none of that side would be working.
Fuse maybe or dodgy new bulb. Try one from other side and see is that the same. Or could be moisture in the connector. Spray with wd40 and see if that helps
On wifes car when indicator light flashed fast on instrument panel, tracked the problem to a loose connector on the circuit that had been disturbed during a timing belt change