High Speed - SSANGYONG Actyon Sports II 2012.01 Manual

15-40

(13) High speed

A. Overview
The supplementary electrical heater is installed in DI engine equipped vehicle as a basic
equipment. The PTC system is operated according to two temperature values measured at the
coolant temperature sensor and HFM sensor. This device is mounted in the heater air outlet and
increase the temperature of air to the passenger compartment. Because PTC system is heated by
electrical power, high capacity alternator is required. PTC does not operate during engine
cranking, while the battery voltage is lower than 11 V or during preheating process of glow plugs.
B. Components
D20DTR ECU
HFM (intake air
temperature)
PTC heater
Relay box in engine compartment
PTC 2 relay (PTC
heater 2, 3)
PTC heater
3 (40A)
PTC heater
2 (40A)
Coolant temperature
sensor
PTC heater
1 (40A)
PTC 1 relay
(PTC heater 1)