I recently noticed that settings 1 and 2 do not activate the heater blower, but 3 and 4 do.
Preliminary research suggests a bad resistor pack for the heater blower control. Is this the correct thing to investigate, or am I chasing the wrong thing. Any other suggestions as to what might be wrong? Everything else seems to work fine.
1999 Toyota Camry Solara SE V6 (manual AC/heater controls)