Suzuki SY413 Service Manual page 4809

6E2-34 ELECTRONIC FUEL INJECTION SYSTEM
4
5
D1/D12
3
D8 P/G
Gr
D20
R/B
B11
B/W
R
W
1. Radiator fan motor
2. Radiator fan control relay
3. ECM
4. Main relay
5. Engine coolant temp. (ECT sensor)
62G00-6E2-34-1S
D19
B13
1. ECM
2. A/C amplifier
3. TP sensor
4. CMP sensor
5. ECT sensor
6. Engine start signal
7. A/C signal
8. A/C ON signal
9. Sensed information
62G00-6E2-34-3S
RADIATOR FAN CONTROL SYSTEM
This system controls operation (ON/OFF) of the radiator fan motor.
Radiator fan motor is turned ON and OFF by its relay which ECM con-
trols.
Radiator fan motor is turned ON/OFF under following engine coolant
2
temp.
1
Radiator
BI/R
fan motor
B
OFF³ON
ON³OFF
62G00-6E2-37S
AIR CONDITIONING (A/C) ON SIGNAL OUTPUT FOR A/C
AMPLIFIER (VEHICLE WITH A/C ONLY)
ECM outputs A/C ON signal (one of the signals for A/C amplifier to con-
trol the air conditioner) to A/C amplifier when A/C signal inputted to
ECM and conditions listed below are satisfied.
Throttle position sensor
output voltage
(throttle valve opening) : below 4.0V
Engine coolant temp
Engine speed
60G00-6E1-43S
Engine coolant temperature
above 945C (2015F)
below 985C (2085F)
: below 1105C (2305F)
: between 600 r/min and 5,900 r/min.