Acura CSX. Manual — part 476
05
Climate Control Door Positions
21-22
Climate Control
HOT
COOL
(VENT)
(HEAT/VENT)
(HEAT)
DEFROSTER
DOOR
AIR MIX
DOOR
HEAT/VENT
DOOR
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06
21-23
HOT
COOL
(HEAT/DEF)
(DEF)
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07
Climate Control Unit Inputs and Outputs
Cavity
Wire
color
Terminal
name
Description
Signal
21-24
Climate Control
CLIMATE CONTROL UNIT 32P CONNECTOR
1
GRY
ILL
Power source for illumination
With lighting switch ON: battery
voltage
2
BRN
RrDEF Ry
Drives rear window defogger relay
3
LT GRN
IG2
IG2 power source
With ignition switch ON (II): battery
voltage
5
BLK
GND
Ground for climate control unit
(G504)
6
RED
ACS
Outputs A/C ON signal
7
BLK
S5V
Outputs sensor 5V
With ignition switch ON (II): about
5 V
8
BRN
Teva
Detects evaporator temperature
sensor signal
9
LT BLU
M-COOL
Drives air mix control motor COOL
side
Drive on COOL side: 7 V
15 V
10
WHT
M-VENT
Drives mode control motor VENT
side
Drive on VENT side: about 14.5 V
11
PNK
M-HOT
Drives air mix control motor HOT
side
Drive on HOT side: 7 V
15 V
12
GRN
M-DEF
Drives mode control motor DEF side
Drive on DEF side: about 14.5 V
13
YEL
BLW-G
Outputs power transistor gate
14
BLU
BLW-V
Feedback signal of power transistor
drain voltage
15
ORN
REC
Drives recirculation control motor
REC side
Drive on REC side: about 14.5 V
16
PUR
FRS
Drives recirculation control motor
FRESH side
Drive on FRESH side: about 14.5 V
18
RED
ILL
Ground for illumination
19
RED
S-COM
Ground exclusive for sensor
20
BLU
MODE 4
Inputs mode motor signal 4
Wire side of female terminals
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Cavity
Wire
color
Terminal
name
Description
Signal
21-25
21
PUR
MODE 3
Inputs mode motor signal 3
22
LT GRN
MODE 2
Inputs mode motor signal 2
23
ORN
MODE 1
Inputs mode motor signal 1
24
PUR
Tsun
Detects sunlight sensor signal
25
BLU
Tam
Detects outside air temperature
sensor signal
26
LT BLU
Tr
Detects in-car sensor signal
27
GRY
AMD-P
Air mix control motor potentiometer
signal
Drive on HOT side: about 4.5 V
Drive on COOL side: about 1.5 V
28
RED
AC SO
SO for navigation communication
(A/C side receiving)
29
BLU
AC CLK
CLK for navigation communication
30
YEL
AC SI
SI for navigation communication
(A/C side transmission)
31
YEL
RFD-P
Recirculation control motor
potentiometer signal
32
PNK
B-CAN
CAN communication
: With navigation
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