You might think it a noob clue, but there is no such thing. Observation is observation…
Ok, the only relay indicators that would flash with Hazard or turn are the trailer light relays that switch 24v to power commercial 24v trailer lighting, K30 and K31.
You say the green LEDs flash but does the relay click when the led is flashing? Do they click when the TS are not working.
And what should have also been one of my first questions, do the brake lights work when the TS/flashers fail?
What do those relays(K30-31) do when you step on the brakes(must have air in the system to activate the brake light switches)? Which is why it should have been one of my first questions, the brake and TS share >90% of the same circuitry…
Does the brake pedal cause the same K30-31 relay response when the flashers are not working?
if only the LEDs are coming on, but no relay clicking, the flasher could be having trouble delivering current. If brake pedal application while this is happening causes the same result, you have a bad connection somewhere limiting current flow. But if brake pedal application pulls in the relays and activates the brake/TS lights, then the circuitry is mostly OK and the issue lies towards the flasher(bad flasher, bad connection) that cannot deliver enough current to pull in relays and light the bulbs when flashing, but the little green LEDs require almost no current to illuminate…
Your noob observation may have localized your issue…
i did this drawing for an A0, but the A1 is mostly the same. The only real difference is the A1 provides voltage to the brake relay thru the pedal switches, the A0 provides a path to ground thru the oedal sw to energize the brake relay. The TS/flasher circuitry is the same…
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