| Component Location |

| 1. Body control module (BCM) 2. Rear glass defogger switch | 3. Rear glass defogger |
Inspection • Wrap tin foil around the end of the voltmeter test lead to prevent damaging the heater line. Apply finger pressure on the tin foil, moving the tin foil along the grid line to check for open circuits.
Diagnosis With GDS1.The heating, ventilation and air conditioning can be quickly diagnosed failed parts with vehicle diagnostic system (GDS).※ The diagnostic system (GDS) provides the following information.(1) Self diagnosis : Checking the failure code (DTC) and display.
Component Location1. Heater unit assemblyCompoents1. Heater core cover2. Heater core & Seal assembly3. Mode actuator [LH]4. Temperature control actuator [LH]5. Shower duct [LH]6. Duct sensor [Floor]7. PTC Heater8. Duct sensor [Vent]9. Heater & Evaporator lower case10.