Dear Forum members,

Recently I've face with heating problem: passenger heating working perfectly but drivers not working at all. I have unplug coolant circulation valves (see picture) and found some oxide on contacts. I've clean the oxide using contact cleaner and plug contactor back. For couple minutes driver side (as well as passenger) start working as it should work but then error repeated. Now again heating works only at passenger side. Also while air circulating fan is working sometimes it completely shut-off for couple minutes and then return to operation again (no matter what regime is selected heating or cooling). Can you please advice if problem in heater core temperature sensors or i should replace coolant circulation valves?


heater core temperature sensors

coolant circulation valves

coolant circulation valves

coolant circulation valves