Suzuki Grand Vitara 1998, Руководство по обслуживанию

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YH4
GRAND
VITARA
1B-20 AIR CONDITIONING (OPTIONAL)
A/C CONTROLLER VOLTAGE VALUES TABLE
Terminal Wire Circuit
Measurement
ground
Normal value Condition
AC1-1 B / W
Controller main
power supply
Ground to
engine (Fig. B)
10 – 14 volts
Ignition switch ON with engine
stopped
AC1-2 B / Y
Controller main
ground
Ground to body
(Fig. A)
– 0.4 – 0 volt Engine running
AC1 4 Or
Refrigerant
pressure switch
Ground to
0 – 1 volt
Refrigerant pressure within 225 kPa
(2.3 kg / cm
2
, 32.7 psi) to 2548 kPa
(26 kg / cm
2
, 370 psi) with engine
running
AC1-4 Or
pressure switch
input
engine (Fig. B)
10 – 14 volts
Refrigerant pressure below
196 kPa (2.0 kg / cm
2
, 28 psi) or
above 3140 kPa (32 kg / cm
2
, 455 psi)
with engine running
AC1 7 G / B
A / C switch input
and / or defroster Ground to
8 – 14 volts
Blower fan motor switch and A / C or
defroster position switch (see NOTE)
ON with engine running
AC1-7 G / B
position switch
input (see NOTE)
engine (Fig. B)
0 – 1.5 volts
Blower fan motor switch or A / C or
defroster position switch (see NOTE)
OFF with engine running
AC1 9 Gr / W
Signal input from
ECM (A / C ON Ground to
10 – 14 volts Approve of A / C ON
AC1-9 Gr / W
(
permission
signal)
engine (Fig. B)
0 – 1 volt A / C ON forbid
AC1-13 Y / B
Signal output to
ECM (A / C ON
request signal)
Ground to engine
(Fig. B)
0 – 1.5 volts
Blower fan motor switch and A / C or
defroster position switch (see NOTE)
ON with engine running at evaporator
thermistor temperature input more
than approx. 2.5
_
C (less than 2.5 V
(5840 )) and refrigerant pressure
switch is ON
10 – 14 volts
Except the above-mentioned with
engine running
AC1-16 P
Compressor
magnet clutch
relay output
Ground to engine
(Fig. B)
0 – 1 volt
Blower fan motor switch and A / C or
defroster position switch ON with
engine running at evaporator
thermistor temperature input more
than approx. 2.5
_
C (less than 2.5 V
(5840 )), refrigerant pressure
switch ON and signal input from ECM
ON
10 – 14 volts
Except the above-mentioned with
engine running