Honda 2004 Odyssey Service Manual page 1545

Heating/Air Conditioning
Circuit Diagram
UNDER HOOD FUSE/RELAY BOX
BATTERY
No.41 (120A)
No.57 (30A)
RADIATOR
FAN
RELAY
1
2
BLU/BLK
BLU/BLK
2
RADIATOR
FAN
MOTOR
1
BLK
G201
21-14
No.42 (50A)
WHT
No.54 (40A)
YEL
No.56 (40A)
No.59 (7.5A)
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
1
RADIATOR
FAN
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
YEL
IG2
COMPRESSOR
CLUTCH
RELAY
4 1
3 2
GRN RED RED
1
COMPRESSOR
CLUTCH
*2
BLU/RED
1
A/C
DIODE B
2
PCM
GRN
2
GRN
2
BLU/RED
BLU/RED GRN
2
RADIATOR
FAN
PCM
SWITCH A
1
(Closed : Above
199°F (93°C) )
BLK
G101
BLK/YEL
BLK/YEL
BLOWER
MOTOR
RELAY
4 1 4
3 2 3
BLK YEL/BLK
G201
ACC
5V
ACS
*3
BLU/RED
A/C
PRESSURE
SWITCH
A
1 1
BLU/RED
A/C
BLU/RED
1
DIODE A*
B
3
A/C
DIODE C
1
GRN/YEL
A/C PRESSURE SWITCH A :
The high low switch opens when
the refrigerant pressure is below
2
196 kPa (2.0 kgf/cm , 28 psi) or
above 3,140 kPa (32.0 kgf/cm , 2
455 psi)
A/C PRESSURE SWITCH B :
The middle switch closes when the
refrigerant pressure is above
2
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
RED/WHT
2