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2/27/2021 Air Conditioning - Manual A/C Circuit (Heating and Air Conditioning) - ALLDATA Repair
1994 Chevy Truck C 2500 Truck 2WD V8-350 5.7L
Vehicle > Heating and Air Conditioning > Diagrams > Electrical - Interactive Color (Non OE)
AIR CONDITIONING - MANUAL A/C CIRCUIT
- Manual A/C CircuitAir Conditioning
Interactive Color (Non OE) diagrams for model years 2001 and older use a universal ground location diagram.
for the diagram.
Click
here
Page 1 of 1
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2/27/2021 Air Conditioning - Manual A/C Circuit (Heating and Air Conditioning) - ALLDATA Repair
M
M
175028
INPUT
A/C
MMM
ALL TIMES
HOT AT
(0.5 MM)
OR START
HOT IN RUN
20A
(0.8 MM)
HOT AT
ALL TIMES
FAN RELAY 1
FAN RELAY 2
A/C CLUTCH RELAY
TEMP DOOR MOTOR
MODE DOOR MOTOR
+5 VOLT
PARK
+5 VOLT
MODE DOOR FDBK POT
FAN RELAY 3
GROUND
IGNITION
BATTERY
5V GROUND
TEMP DPPR FDBK POT
5V GROUND
GROUND
RECIRC DOOR MOTOR+
RECIRC DOOR MOTOR-
MODE DOOR MOTOR-
TEMP DOOR MOTOR+
DIM
PRES SW INPUT
IN RUN
HOT
25A
CONTROLLED
REHOSTAT
5A
C1
C4
C2
C5
C210
C1
C3
C4
C5
C2
C220
C3
C1
C4
C5
C2
C219
C5
C2
C4
C1
C221
D
F
A
C141
E
C5
C6
C217
C222
C10
C8
C9
C5
C4
C10
C8
C9
C5
C6
E12B4B8
B
C
A
B
D
C
A
F
J
H
G
K
L
M
E
12
11
10
9
8
7
6
5
4
3
2
1
RED
BRN
DK GRN
DK GRN
BLK
BLK
NCA
NCA
BLK
PPL
RED
GRY
GRY
DK GRN
DK GRN/WHT
DK GRN/WHT
LT GRN
BLK
PPL
PPL
TAN
YEL
BRN
ORG
PPL
PPL
RED
TAN
BRN
TAN
LT BLU
PPL
LT BLU
YEL
BRN
ORG
RED
DK GRN
BLK
BLK
DK GRN
DK GRN
LT GRN
LT GRN
LT GRN
PNK/BLK
PNK/BLK
BLKBLK
BLK/RED
TAN
BLK
BRN
LT GRN
DK BLU/WHT
BRN
LT GRN
PNK/BLK
BLK/RED
RED
DK GRN
WHT
RED
DK BLU
BLK
TAN
LT GRN
LT BLU
PNK/WHT
LT GRN/BLK
ORG
TAN
DK BLU/WHT
LT BLU
WHT
TAN
BRN
TAN
RED
ORG
BLK
BRN
RED
BLK
DK BLU
BLK
BLK
LT GRN/BLK
PNK/WHT
DK GRN
LT GRN
GRY
DK GRN
60
63
1651
1645
1641
705
9
705
1643
52
150
50
2
452
1646
452
150
1647
1648
1642
1644
8
1827
FUSE
BLOCK
FUSIBLE LINK FUSIBLE LINK
PANEL
LPS
A/C
HTRGAUGES
DIODE
ECM OR PCM
INTERIOR
LIGHTS
SYSTEM
(7.4L ONLY)
(5.0L M/T & 5.7L M/T)
(6.5L DIESEL VIN F,P & S)
(4.3L, 5.0L A/T, 5.7L A/T & 7.4L)
G106
G105
G202
A/C COMP CLUTCH
G106
DIODE
A/C HIGH PRESSURE
CUTOUT SWITCH 2
BLOWER RESISTOR B
ENGINE COOLANT
TEMP SW
EVAP CONTROL SWITCH
AUXILIARY
COOLING
FAN
A/C HIGH PRESSURE
CUTOUT SW 1
BLOWER
MOTOR
BLOWER
RESISTOR A
A/C HEATER CONTROLLER
RECIRC DOOR
MOTOR
MODE DOOR MOTOR
TEMP DOOR MOTOR
HIGH BLOWER
RELAY
A/C CLUTCH RELAY LOWER BLOWER
RELAY
MEDIUM BLOWER
RELAY
AUXILIARY
COOLING
FAN RELAY
(REAR OF RIGHT
CYLINDER HEAD)
(REAR OF RIGHT
CYLINDER HEAD)
ATTACHED TO
BATTERY J/B,
RIGHT REAR
ENGINE COMPT
AT COWL)
ATTACHED TO
BATTERY J/B,
RIGHT REAR
ENGINE COMPT
AT COWL)
(NEAR COMPRESSOR)
(UNDER RIGHT
SIDE OF DASH)
(RIGHT CYL SWITCH)
(ENGINE HARNESS,
REAR OF ENGINE
COMPT NEAR
JUNCTION BLOCK)
(AT A/C ACUMULATOR)
(RIGHT INNER
FENDER, NEAR
BATTERY)
(ON BACK OF COMPRESSOR)
(RIGHT SIDE
DASH PANEL)
(AT DATA
LINK CONN)
(UNDER DASH,
ON HEATER
HOUSING)
(UNDER INST
PANEL ON
HEATER/
A/C CASE)
(UNDER INST
PANEL ON
HEATER/
A/C CASE)
(UNDER INST PANEL
TOP OF HEATER/
A/C CASE)
(UNDER INST
PANEL ON
HEATER/
A/C CASE)
(UNDER CENTER
OF INST PANEL,
ON TOP HEATER
A/C CASE)
(UNDER RIGHT
SIDE OF I/P)
(UNDER CENTER
OF INST PANEL,
ON TOP HEATER
A/C CASE)
(LEFT REAR
SIDE OF
ENGINE COMPART)
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