Suzuki Wagon R Manual page 1889

1B-4 AIR CONDITIONING (OPTIONAL)
b. To "HEATER" fuse (25A) in circuit fuse box
c. To "IG COIL" fuse (15A) in circuit fuse box
d. To "FI" fuse (20A) in main fuse box
e. To "RDTR" fuse (30A) in main fuse box
Terminal Arrangement of ECM Coupler (viewed from Harness Side)
ECM Voltage Values Table for Relation of A/C Control (M13 Engine Model)
Termi- Wire
nal
E22-01 BLK Main ground
for ECM
E21-05 BLK/ Power supply
RED for engine con-
trol
E23-01 BLK/ ECM ground
YEL for power cir-
cuit
E21-06 BLK/ Power supply
RED for engine con-
trol
E21-4 BLU Radiator
(condenser)
cooling fan
relay output
E23-15 BLU/ Main relay
BLK
E23-11 ORN Compressor
magnet clutch
relay output
E23-02 BLK/ ECM ground
YEL for power cir-
cuit
E21-15 GRN/ Evaporator
RED thermistor
temp.
input
2. Dual pressure switch
3. Blower fan motor relay
4. Blower fan motor
5. Blower fan motor resistor
Circuit Measurement
ground
Ground to
body (Fig A)
Ground to
engine (Fig B)
Ground to
body (Fig A)
Ground to
engine (Fig B)
Ground to
engine (Fig B)
Ground to
engine (Fig B)
Ground to
engine (Fig B)
Ground to
body (Fig A)
Ground to
engine (Fig B)
7. A/C evaporator thermistor
8. ECT sensor
9. Compressor relay
10. Compressor
Normal value
–0.3 – 0.3 V Ignition switch ON
10 – 14 V Ignition switch ON
–0.3 – 0.3 V Ignition switch ON
10 – 14 V Ignition switch ON
0 – 1 V A/C switch ON or engine coolant
temp. sensor more than 96 ºC
º
F) with engine running
10 – 14 V Except the above-mentioned with
engine running
0 – 1 V Ignition switch ON
10 – 14 V Ignition switch OFF
0 – 1 V A/C switch ON with engine running
10 – 14 V Except the above-mentioned with
engine running
–0.3 – 0.3 V Ignition switch ON
2.0 – 2.3 V Evaporator thermistor temp. at
(1800 – 2200 Ω )
Approx. 25 ºC (77 ºF) with
switch ON
3.5 – 3.6 V Evaporator thermistor temp. at
(6300 – 7000 Ω )
Approx. 0 ºC (32 ºF) with ignition
switch ON
12. Radiator (and condenser) cooling
fan motor relay
13. Radiator (and condenser) cooling
fan motor
14. ECM
Condition
(205
ignition