That is not a relay in my opinion it is the gear drive AC/Heater temperature control blend door actuator, the gears are jumping over each others teeth and that makes a clicking sound. This is caused by a binding air temperature control door inside the dash near the speaker.
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That is not a relay in my opinion it is the gear drive AC/Heater temperature control blend door actuator, the gears are jumping over each others teeth and that makes a clicking sound. This is caused by a binding air temperature control door inside the dash near the speaker.