Honda 2004 Odyssey Service Manual page 1607

Climate Control
Circuit Diagram
Without Navigation System
BATTERY
RADIATOR
FAN RELAY
1
2
BLU/BLK
BLU/BLK
2
RADIATOR
FAN
MOTOR
1
BLK
G201
21-76
UNDER HOOD FUSE/RELAY BOX
No.42 (50A)
No.41 (120A) No.54 (40A)
No.56 (40A)
No.59 (7.5A)
No.57 (30A) No.58 (30A)
CONDENSER
FAN RELAY
4 1
3 2
BLU/RED BLU/YEL
2
CONDENSER
FAN
MOTOR
1
BLU/RED BLK/YEL
ABS RELAY BOX
1 5
FAN
CONTROL
RELAY
4 2 3
BLU/BLK BLU/RED
BLK
BLU/RED
BLU/RED BLU/RED
1
RADIATOR
FAN
PCM
SWITCH B
2
(Closed : Above
210°F (99°C) )
BLK
G101 G201
IGNITION SWITCH DRIVER'S UNDER DASH
IG2 HOT in ON (II) FUSE/RELAY BOX
No.3 (7.5A)
BAT
WHT YEL
IG2
YEL
COMPRESSOR
CLUTCH
4 1 RELAY
3 2
GRN RED
1
COMPRESSOR
CLUTCH
PCM
BLU/RED
1
A/C
DIODE B
2
GRN
GRN
BLU/RED
GRN
2
RADIATOR
FAN
SWITCH A
1
(Closed : Above
199°F (93°C) )
BLK
G101
BLK/YEL
BLK/YEL
BLOWER
MOTOR RELAY
4 1 4
3 2 3
RED BLK
YEL/BLK
G201
*2
ACC
5V
ECT
*4 RED/WHT
SG2
6
GRN/BLK*
5V
*5
7
GRN/YEL*
ACS
A/C
*3
PRESSURE
SWITCH
BLU/RED
A
2 1 1
BLU/RED
A/C
BLU/RED
1
DIODE A*
B
3
A/C
DIODE C
2 1
GRN/YEL
A/C PRESSURE SWITCH A :
The high low switch opens when the refrigerant
pressure is below 196 kPa (2.0 kgf/cm , 28 psi)
2
or above 3,140 kPa (32.0 kgf/cm , 455 psi)
A/C PRESSURE SWITCH B :
The middle switch closes when the refrigerant
pressure is above 1,520 kPa (15.5 kgf/cm , 220 psi)
*1 :
In the passenger's under dash
fuse/relay box
*2 : A17 ('99 00 and '02 04 models)
: E12 ('01 model)
*3 : A27 ('99 00 and '02 04 models)
: E21 ('01 model)
*4 : C26 ('99 00 and '02 04 models)
: A13 ('01 model)
*5 : C18 ('99 00 and '02 04 models)
: A28 ('01 model)
RED/WHT
2
ENGINE
COOLANT
TEMPERATURE
(ECT) SENSOR
1
4
RED/WHT
2
2
2
*6 : '99 01 models
*7 : '02 04 models