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PTC Heater Relay
 
 
COMPONENT FUNCTION WITHIN SYSTEM
This relay activates according to the PTC heater relay control signal that is controlled by BCM, and activates the PTC heater.
 
 
INDIVIDUAL COMPONENT FUNCTION
It turns the relay switch ON/OFF and sends a large current from the battery to the PTC heater.
 
 
COMPONENT OPERATION
  • The PTC heater relay utilizes multiple relays. It decides the PTC heater ON/OFF and the power supplied to the heating wires according to the ON/OFF combination of these relays.
  • The PTC heater relay utilizes a normal open relay.
 
 
COMPONENT PARTS LOCATION
The PTC heater relay is installed in the relay box on the behind of the front bumper.