Page 1903 - Foton Workshop Manual - Aumark (BJ1099)

CIRCUIT - SYSTEM SCHEMATIC DIAGRAM 61-113

System description:
A/C control
The current is output from the A/C controller to the pin 1 of the A/C pressure switch, and
after passing through the low pressure and high pressure switches, is earthed via the 61
pin 4 of the A/C pressure switch, to provide the normal cooling pipeline pressure signal.
Meanwhile, the A/C switch on the A/C panel raises an A/C request, and through earthing
by the engine electronic control module, the A/C compressor relay R14 coil generates
a magnetic field to close the contact.The battery current is output to the pin 3 of the A/C
compressor R14 through the fuses F28 and F20 in the engine compartment fuse box, and
then output from the pin 5 to the electromagnetic clutch to activate the compressor.
When the blower switch is activated, after the internal circulation switch in the front A/C
controller is pressed, the current will be output from the pin B11 of the A/C connector C42
to the pin 6 of the internal/external circulation servo motor, and then from the pin 5 to the
pin A11 of the A/C controller C42 through the internal/external circulation servo motor to
activate the internal/external circulation servo motor.
The current is output from the pin A4 of the A/C controller connector C42 to the pin 3 of the
servo damper motor pin 3, and then returned from the pin 1 of the servo damper motor pin
to the pin B4 of the A/C controller connector C42 through the potentiometer to supply the
potentiometer working circuit. The current is output from the pin 2 of servo damper motor
to the pin B7 of the A/C connector C42 to feed back the servo damper motor position.

：Parts Location

No. Reference harness No. Reference harness

A01 Engine compartment wiring harness C46 Front wall instrument wiring harness

A11 Engine compartment wiring harness C63 Front wall instrument wiring harness
A40 Engine compartment wiring harness C64 Front wall instrument wiring harness
C05 Front wall instrument wiring harness D49 Floor wiring harness

C38 Front wall instrument wiring harness D53 Floor wiring harness

C39 Front wall instrument wiring harness D56 Floor wiring harness
C40 Front wall instrument wiring harness D57 Floor wiring harness
C42 Front wall instrument wiring harness D60 Floor wiring harness

E17 Engine harness

：Connectors Among The Harness

No. No. Reference harness(Connector location)

Front wall instrument wiring harness and engine compartment wiring harness
A302 C202
(Beneath left A pillar)

Front wall instrument wiring harness and floor wiring harness (Left side of
C302 D202
instrument cross member)

Page 1903