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FATC
21
26
Output signal to drive 1.PTC heater
relay
27
Output signal to drive 2.PTC heater
relay
28
Output signal to drive 3.PTC heater
relay
29
Driving PWM signal for PTC heater
30
Power supply for FATC Control Head
31
Ignition (Kl15) wake-up input
32
Humidity sensor (Temperature input)
2. HVAC SIDE CONNECTOR (BLUE CONNECT-
OR) PINOUT DETAILS
PIN DESCRIPTION
1
Output LSD
2
Output LSD
3
Positive motor drive for Co-Driver side
temperature door
4
Positive motor drive for Driver side tem-
perature door
5
Positive motor drive for mode distribu-
tion door
6
Positive motor drive for additional mode
distribution door
7
Positive motor drive for air inlet door
8
Diagnostic feedback from Blower motor
control module
9
Position feedback from Co-Driver side
temperature door actuator
10
Position feedback from Driver side tem-
perature door actuator
11
Position feedback from mode distribu-
tion door actuator
12
Position feedback from additional mode
distribution door actuator
13
Position feedback from air inlet door ac-
tuator
14
Reference voltage for HVAC sensors
15
Input PWM
16
input analog
PIN DESCRIPTION
17
Signal ground for HVAC sensors
18
AQS Supply
19
Negative motor drive for Co-Driver side
temperature door
20
Negative motor drive for Driver side
temperature door
21
Negative motor drive for mode distribu-
tion door
22
Negative motor drive for additional mode
distribution door
23
Negative motor drive for air inlet door
24
Driving PWM signal for Blower motor
control module
25
Input signal from Evaporator tempera-
ture sensor
26
Input signal from Co-Driver side dis-
charge temperature sensor
27
Input signal from Driver side discharge
temperature sensor
28
Input signal from PTC heater tempera-
ture sensor
29
AQS Signal
30
LIN channel for communication with
HVAC components