Suzuki Liana RH413 Service Manual page 860

7B-21 Air Conditioning System: Manual Type
Terminal Wire Color
ECT sensor
G41-14 LT GRN
input
Compressor
G04-1 BRN/YEL magnet clutch
relay output
Main power
G04-5 BLK/RED
supply for ECM
Main power
G04-6 BLK/RED
supply for ECM
Radiator cooling
fan and A/C
G04-7 BLU/ORN condenser fan
control pressure
switch input
Condenser
G04-9 BLU/YEL cooling fan relay
output
G04-10 BRN/WHT Main relay drive
A/C evaporator
inlet air
G04-11 YEL/WHT
temperature
sensor input
A/C evaporator
outlet air
G04-14 WHT/BLK
temperature
sensor input
G04-16 GRN/BLK A/C switch input
Measurement
Circuit
Ground
Ground to
engine (Fig B)
Ground to
engine (Fig B)
Ground to
engine (Fig B)
Ground to
engine (Fig B)
Ground to
engine (Fig B)
Ground to
engine (Fig B)
Ground to
engine (Fig B)
Ground to
engine (Fig B)
Ground to
engine (Fig B)
Ground to
engine (Fig B)
Normal Value
Engine coolant temperature at
0.71 – 0.77 V
approximately 80 °C (176 °F) with
(298 – 320 Ω)
engine running
Engine coolant temperature at
approximately 110 °C (230 °F) with
engine running
0.35 – 0.37 V
*If the temperature is more than 110 °C
(135 – 144 Ω)
(230 °F), compressor and condenser
cooling fan should be stop (come back
at less than 108 °C (226.4 °F)
Fulfill all the following conditions
• Blower speed selector ON
0 – 1 V
• A/C or defroster switch ON
• Engine running
Except the above-mentioned condition
12 – 15 V
with engine running
10 – 14 V Ignition switch ON with engine stopped
10 – 14 V Ignition switch ON with engine stopped
Radiator cooling fan control pressure of
–0.5 – 0.5 V
A/C refrigerant pressure switch ON
Radiator cooling fan control pressure of
12 – 15 V
A/C refrigerant pressure switch OFF
Fulfill all the following conditions
• Blower speed selector ON
• A/C or defroster switch ON
0 – 1 V
• Engine running
Engine coolant temperature at more
than 110 °C (230 °F) with engine
running
Except the above-mentioned condition
12 – 15 V
with engine running
0.5 – 1.2 V Ignition switch ON with engine stopped
10 – 14 V Ignition switch OFF
A/C evaporator inlet air temperature at
2.07 – 2.18 V
approximately 25 °C (77 °F) with engine
(1914 – 2090 Ω)
running
A/C evaporator inlet air temperature at
2.46 – 2.57 V
approximately 18 °C (64.4 °F) with
(2697 – 2870 Ω)
engine running
A/C evaporator outlet air temperature at
2.07– 2.18 V
approximately 25 °C (77 °F) with engine
(1914 – 2090 Ω)
running
A/C evaporator outlet air temperature at
3.32 – 3.39 V
approximately 3.5 °C (38.3 °F) with
(5381 – 5713 Ω)
engine running
Fulfill all the following conditions
• Blower speed selector ON
12 – 15 V
• A/C or defroster switch ON
• Engine running
Except the above-mentioned condition
0 – 1 V
with engine running
Condition