Suzuki GRAND VITARA XL-7 Owner's Manual page 43

1B-18 AIR CONDITIONING (OPTIONAL)
Terminal Wire
WHT/
AC-B-2
BLK
GRY/
E61-8
WHT
YEL/
E61-17
BLK
YEL/
E61-22
BLU
Measurement
Circuit
ground
A/C evaporator
temperature
Ground to
sensor (A/C
engine (Fig B)
evaporator ther-
mistor) input
Signal output to
A/C controller Ground to
(A/C ON permis- engine (Fig C)
sion signal)
Signal input from
A/C controller Ground to
(A/C ON request engine (Fig C)
signal)
Condenser cool-
Ground to
ing fan motor
engine (Fig C)
relay output
Normal value
A/C evaporator temperature sen-
1.8 V
sor temperature at approx. 15 °C
(3520 Ω)
(59 °F) with engine running
A/C evaporator temperature sen-
sor temperature at approx. 4.5 °C
(34 °F) with engine running
If the temperature is less than
2.51 V
approx. 4.5 °C, in this case com-
(5.855 Ω)
pressor and condenser fan
should be stop (come back at
more than approx. 6.1 °C (less
than 5403 Ω, 2.4 V))
Required A/C ON (terminal AC-
A13) at engine running with nor-
10 – 14 V mal condition (refer to "INSPEC-
TION OF ECM AND ITS
CIRCUIT" in Section 6E)
Except the above-mentioned with
engine running
0 – 1 V
In this case compressor should
be stop
0 – 1.5 V Require A/C ON
10 – 14 V Turn off the A/C
Blower fan motor switch and A/C
or defroster switch ON with
engine running at A/C evaporator
temperature sensor temperature
input more than approx. 2.5 °C
(less than 2.5 V (5840 Ω)), refrig-
0 – 1 V
erant pressure switch ON and
signal input from ECM ON
Engine coolant temperature sen-
sor more than 113 °C (236 °F)
with engine running
Except the above-mentioned with
10 – 14 V
engine running
Condition