Suzuki Liana RH413, Service Manual

Page: 910 / 1302

7B-71 Air Conditioning System: Automatic Type
G41-14 LT GRN
ECT sensor
input Ground to
engine (Fig B)
0.71 – 0.77 V
(298 – 320
Ω
)
Engine coolant temperature at
approximately 80
°
C (176
°
F) with
engine running
0.35 – 0.37 V
(135 – 144
Ω
)
Engine coolant temperature at
approximately 110
°
C (230
°
F) with
engine running
*If the temperature is more than 110
°
C
(230
°
F), compressor and condenser
cooling fan should be stop (come back
at less than 108
°
C (226.4
°
F)
G04-1 BRN/YEL
Compressor
magnet clutch
relay output
Ground to
engine (Fig B)
0 – 1 V
Fulfill all the following conditions
• Blower speed selector ON
• A/C or defroster switch ON
• Engine running
12 – 15 V
Except the above-mentioned condition
with engine running
G04-5 BLK/RED
Main power
supply for ECM Ground to
engine (Fig B)
10 – 14 V Ignition switch ON with engine stopped
G04-6 BLK/RED
Main power
supply for ECM Ground to
engine (Fig B)
10 – 14 V Ignition switch ON with engine stopped
G04-7 BLU/ORN
Radiator cooling
fan and A/C
condenser fan
control pressure
switch input
Ground to
engine (Fig B)
–0.5 – 0.5 V
Radiator cooling fan control pressure of
A/C refrigerant pressure switch ON
12 – 15 V
Radiator cooling fan control pressure of
A/C refrigerant pressure switch OFF
G04-9 BLU/YEL
Condenser
cooling fan relay
output
Ground to
engine (Fig B)
0 – 1 V
Fulfill all the following conditions
• Blower speed selector ON
• A/C or defroster switch ON
• Engine running
Engine coolant temperature at more
than 110
°
C (230
°
F) with engine
running
12 – 15 V
Except the above-mentioned condition
with engine running
G04-10 BRN/WHT Main relay drive
Ground to
engine (Fig B) 0.5 – 1.2 V Ignition switch ON with engine stopped
10 – 14 V Ignition switch OFF
G03-9 YEL/GRN
ECT signal
output Ground to
engine (Fig B)
See reference
waveform
referring to
“Inspection of
HVAC Control
Module and its
Circuit”.
Ignition ON
G03-10 BLU/BLK
Blower speed
input Ground to
engine (Fig B)
0 – 1 V
Blower speed selector “ML”, “MH” or “H”
with engine running
4 – 7 V
Blower speed selector “L” position with
engine running
12 – 15 V
Blower speed selector OFF with engine
running
Terminal Wire Color Circuit
Measurement
Ground
Normal Value Condition