79600-S84-A01ZA Heater A/C Climate Control Module . Function: Regulates and controls cabin temperature, fan speed, air flow direction, and AC/defrost settings. Design: Usually comes with integrated knobs, buttons, and display; connects to the car’s HVAC system. Replaces number 599-268, 79600-S84-A01ZA, 79600S84A01ZA Compatible with Heater Climate Control Module: Compatible with Honda Accord 1999 Compatible with Honda Accord 2000 Compatible with Honda Odyssey 1998 Compatible with Honda Odyssey 1999 Compatible with Honda Odyssey 2000 Compatible with Honda Odyssey 2001 Compatible with Honda Odyssey 2002 Compatible with Honda Odyssey 2003 Compatible with Honda Odyssey 2004 Fix symptoms: Inconsistent Temperature Control: Difficulty maintaining a set temperature. Fluctuating temperatures in the cabin. Air blowing hot when it should be cold, or vice versa. Faulty Fan Operation: Fan speed issues (blowing too fast, too slow, or not at all). Erratic fan behavior (turning on and off unexpectedly). Incorrect Mode Operation: Inability to switch between heating and cooling modes. Issues with defrost, recirculation, and other modes. Control Panel Malfunctions: Buttons not responding correctly. Display issues (incorrect readings, blank screen). Erratic or non-functioning controls. Warning Lights or Error Codes: Check Engine Light may illuminate. Climate control system may display error codes.