Ptc Operating Process - SSANGYONG Kyron Repair Manual

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3. PTC OPERATING PROCESS

PTC Operating (ON) Condition
The operating condition of PTC is controlled by two step.
Generally, ECU control the power relay for PTC depending on the coolant temperature and ambient tempera-
ture sensor.
1st step (Initial PTC operating condition)
1. When coolant temperature < 15°C, PTC is operating (ON).
2. When coolant temperature
2nd step (Coolant temperature: 15°C)
1. When coolant temperature 65°C
2. When coolant temperature 65 ~ 60°C and ambient temperature -10°C ~ 0°C PTC operates (ON)
3. When coolant temperature
PTC "OFF" Condition
1. Air conditioner blower switch OFF
2. Ambient temperature sensor error (wiring short or open)
3. When engine cranking
4. Battery voltage is lower than 11V
5. When preheating the engine (Glow indicator "ON")
AIR CONDITIONING SYSTEM
KYRON SM - 2005.09
15°C, tow conditions described below must be satisfied.
and ambient temperature
60°C and ambient temperature
-10°C PTC operates (ON)
0°C ~ 5°C, PTC operates (ON)
CHANGED BY
EFFECTIVE DATE
AFFECTED VIN