Peterbilt PCC 379 wiring diagrams
Heater/Air Conditioner without PCC: Model 379 Family SK25756 A 01
CAB FAN
LOW
239
3085868787a
A495
152
CAB
BLOWER
CONTROL
BUNK
RELAY
A239
L
OFF
BUNK
SWITCH
1
3085868787a
45
CAB
BLOWER
MOTOR
LM
212
152
2
239239
239
25A
45
CPRSR
CLUTCH
93
SWITCHED
POWER
CAB BLOWER
3085868787a
DIODE
304
15A
AIR COND
342
B239
FREON LOW
PRESSURE
SWITCH (NC)
570
FREON
COMPRESSOR
CLUTCH
B239
TEMP
ACTUATOR
567
8910
629
628
BUNK
TEMP
CONTROL
248
630
MOTOR
L
LM
152
1
OFF
BUNK AIR
COND
SWITCH
H
HM
153
240
212
2
3
4
C
495
SLPR BLOW ER
FREON HIGH
PRESSURE
SWITCH (NC)
180
248
BUNK
BLOWER
BUNK
BLOWER
CONTROL
A495
25A
248
GROUND
248
TEMP
FRESH/
RECIRC
RELAY
342
ACTUATOR
239
633
567
8910
629
239
CAB TEMP
CONTROL
631
342
342
3085868787a
633
567
H
HM
153
240
3
4
C
631
239
239
FRESH/
RECIRC
SWITCH
342
B239
A495
632
8910
MODE
ACTUATOR
567
8910
239
239
239
FRESH/
RECIRC
ACTUATOR
634
631
CAB AIR
COND
SWITCH
342
MODE
CONTROL
A495
45
248
342
239
239
A495
342
342
NOTES:
1) USE W/ SIG N ET H EATER AIR CON D SYSTEM W/O CAB OR SLEEPER
PETERBILT COMFORT CONTROL (PCC). SEE SHEET 2 FOR WIRING WITH PCC
PD803099.FRM
Heater/Air Conditioner with PCC: Model 379 Family SK25756 02
240
4
C
631
248
TEMP
ACTUATOR
H
567
8910
PCC
MODULE
RED
ORANGE
BLACK
WHITE
GREEN
FRESH/
RECIRC
RELAY
633
342
239
631
BROWN
BLACK
RED
YELLOW
YELLOW
TEMP
SENSOR
342
3085868787a
632
633
FRESH/
8910
567
RECIRC
ACTUATOR
153
CAB TEMP
CONTROL
239
FRESH/
RECIRC
SWITCH
342
B239
A495
45
BUNK
SWITCH
BUNK
RELAY
L
OFF
3085868787a
CAB
BLOWER
MOTOR
LM
152
2
1
HM
212
3
239239
239
239
CAB FAN
LOW
3085868787a
152
239
CAB
BLOWER
CONTROL
A495
A239
NOTES:
1) USE W/ SIGNET HEATER AIR COND SYSTEM WITH CAB OR SLEEPER
PETERBILT COMFORT CONTROL (PCC). SEE SHEET 1 FOR WIRING W/O PCC.
CAB AND SLEEPER ARE INDEPENDENT MODULES, MAY HAVE ONE WITHOUT THE OTHER.
MODE
ACTUATOR
567
8910
239
239
239
634
631
CAB AIR
COND
SWITCH
342
MODE
CONTROL
A495
25A
45
CPRSR
CLUTCH
93
SWITCHED
POWER
CAB BLOWER
3085868787a
DIODE
304
15A
AIR COND
342
B239
FREON LOW
PRESSURE
SWITCH (NC)
570
FREON
COMPRESSOR
CLUTCH
MOTOR
L
LM
152
1
OFF
BUNK AIR
COND
SWITCH
HM
240
212
2
3
4
C
495
SLPR BLOW ER
FREON HIGH
PRESSURE
SWITCH (NC)
180
248
BUNK
BLOWER
BUNK
BLOWER
CONTROL
A495
25A
248
H
B239
153
TEMP
ACTUATOR
567
8910
B239
629
BUNK
TEMP
CONTROL
248
PCC
MODULE
RED
ORANGE
BLACK
WHITE
GREEN
BROWN
BLACK
RED
YELLOW
635
YELLOW
TEMP
SENSOR
GROUND
239
45
248
342
239
A495
342
342
PD803099.FRM
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