Repair Instructions; Operation Procedure For Refrigerant Charge - Suzuki Swift Sport 2004 Service & Repair Manual

ECM Voltage Values Table for Relation of A/C Control
Terminal Wire Color
C37-14 GRY/RED
C37-15 BLK
C37-24 LT GRN
C37-30 BLK
C37-55 ORN
C37-58 BLK/ORN Ground for ECM
E23-1 BLK/RED
E23-3 RED
E23-16 BLK/RED
E23-18 WHT
E23-19 BLU/WHT
E23-46 LT GRN
E23-47 GRY
E23-48 GRN
E23-55 RED
E23-60 BRN/WHT

Operation Procedure for Refrigerant Charge

Refer to "Operation Procedure for Refrigerant Charge".
Circuit Normal Value
Output of 5 V power
source
Ground for ECM
Engine coolant temp.
(ETC) sensor signal 1.38 – 1.72 V
Ground for ECM
Ground for sensors
Main power supply
CAN (high)
communication line
Refer to "DTC P2101: Throttle Actuator Control Motor Circuit Range /
(active high signal)
Performance in Section 1A"
for BCM and
combination meter
Main power supply
CAN (low)
communication line
Refer to "DTC P2101: Throttle Actuator Control Motor Circuit Range /
(active low signal) for
Performance in Section 1A"
BCM and
combination meter
Electric load signal
for blower motor
Radiator fan relay
No.1 output
A/C compressor relay
output
Radiator fan relay
No.2 and No.3 output
1.46 – 1.71 V
A/C refrigerant
pressure sensor
signal
2.55 – 2.80 V
Main power supply
relay output

Repair Instructions

Air Conditioning System: Automatic Type 7B-71
4.5 – 5.5 V Ignition switch turned ON
Below 0.3 V Ignition switch turned ON
Ignition switch turned ON, ECT at 0 °C (32 °F)
3.3 – 3.8 V
Ignition switch turned ON, ECT at 50 °C (122 °F)
Below 0.3 V Ignition switch turned ON
Below 0.3 V Ignition switch turned ON
Below 0.3 V Ignition switch turned ON
10 – 14 V Ignition switch turned ON
10 – 14 V Ignition switch turned ON
Ignition switch turned ON, blower speed selector
10 – 14 V
OFF or between 1st and 5th position
Ignition switch turned ON, blower speed selector
0 – 1 V
between 6th and HIGH position
Ignition switch turned ON, engine coolant temp.:
below 95 °C (203 °F), or A/C refrigerant pressure:
10 – 14 V
below 600 kPa (87 psi).
Ignition switch turned ON, engine coolant temp.:
97.5 °C (207.5 °F) or higher, or A/C refrigerant
0 – 2 V
pressure: 1100 kPa (159.5 psi) or higher.
10 – 14 V Engine running, A/C request signal high input
0 – 1 V Engine running, A/C request signal low input
Ignition switch turned ON, engine coolant temp.:
below 100 °C (212 °F), or A/C refrigerant
10 – 14 V
pressure: below 1200 kPa (174 psi).
Ignition switch turned ON, engine coolant temp.:
102.5 °C (216.5 °F) or higher, or A/C refrigerant
0 – 2 V
pressure: 1500 kPa (217.5 psi) or higher.
Engine running, A/C refrigerant pressure at 0.8
MPa (8.0 kg/cm
measured by manifold gauge)
Engine running, A/C refrigerant pressure at 1.6
MPa (16.0 kg/cm
measured by manifold gauge)
10 – 14 V Ignition switch turned OFF
0 – 2 V Ignition switch turned ON
Condition
2 ) (A/C refrigerant pressure
2 ) (A/C refrigerant pressure
S7RS0B7226001