window SUZUKI SWIFT 2000 1.G RG413 Service Workshop Manual

1B-10 AIR CONDITIONING (OPTIONAL)
PERFORMANCE DIAGNOSIS
1) Confirm that vehicle and environmental conditions are as fol-
lows.
Vehicle is not exposed to direct sun.
Ambient temperature is within 15 – 35°C (59 – 95°F).
2) Make sure that high pressure valve (1) and low pressure
valve (2) of manifold gauge set (3) are firmly closed.
3) Connect high pressure charging hose (4) to high pressure
service valve (5), and connect low pressure charging hose
(6) to low pressure service valve (7).
4) Bleed the air in charging hoses (4), (6) by loosening their
respective nuts on manifold gauge set (3), utilizing the refrig-
erant pressure. When a hissing sound is heard, immediately
tighten nut.
5) Warm up engine to normal operating temperature (engine
coolant temperature at 80 – 90°C (176 – 194°F)) and keep it
at specified idle speed. (Radiator cooling fan should not be
working when checking pressure and temperature.)
6) Turn A/C switch to ON position, and set blower fan switch at
“H” (4th position), temperature dial at “COOL”, air outlet con-
trol dial at “FACE” and fresh/recirculation control dial at
“RECIRCULATION”. (Confirm that A/C compressor and radi-
ator/condenser cooling fan are working.)
Keep all windows, doors and engine food open.
Performance diagnosis condition
7) With dry bulb thermometer (1) inserted into center duct air
outlet and another one set near evaporator air inlet, read
temperature indicated on each thermometer. CAUTION:
Do not interchange high and low pressure charging
hoses by mistake.
Ambient temperature 15 – 35°C (59 – 95°F)
Engine rpm Keep to 1,500 rpm.
Blower fan switch“H” (4th position)
Temperature control“Cool”
Air outlet control“Face”
Vehicle Doors All open
Air inlet door position Recirculation

6-32 ENGINE GENERAL INFORMATION AND DIAGNOSIS
✱THROTTLE POS
(ABSOLUTE THROTTLE
POSITION)Ignition switch
ON/engine
stoppedThrottle valve fully closed 7 – 18%
Throttle valve fully open 70 – 90%
✱O2S B1 S1
(HEATED OXYGEN SEN-
SOR-1)At specified idle speed after warming up 0.01 – 0.95 V
∆✱O2S B1 S2
(HEATED OXYGEN SEN-
SOR-2)When engine is running at 2000 r/min. for 3
min or longer after warming up.0.01 – 0.95 V
∆✱O2S FT B1 S1 At specified idle speed after warning up– 20 – +20%
∆✱DIS. WITH MIL ON––
DESIRED IDLE
(DESIRED IDLE SPEED)At idling with no load after warming up, M/T
at neutral, A/T at “P” rangeM/T 700 r/min
A/T 750 r/min
TP SENSOR VOLT
(THROTTLE POSITION
SENSOR OUTPUT VOLT-
AGE)Ignition switch
ON/engine
stoppedThrottle valve fully closed More than 0.2 V
Throttle valve fully open Less than 4.8 V
INJ PULSE WIDTH
(FUEL INJECTION PULSE
WIDTH)At specified idle speed with no load after
warming up2.0 – 3.6 msec.
At 2500 r/min with no load after warming up 2.0 – 3.6 msec.
IAC FLOW DUTY
(IDLE AIR CONTROL
FLOW DUTY)At idling with no load after warming up 5 – 25%
TOTAL FUEL TRIM At specified idle speed after warming up– 35 – +35%
BATTERY VOLTAGE Ignition switch ON/engine stop 12 – 14 V
CANIST PRG DUTY
(EVAP CANISTER PURGE
FLOW DUTY)–0 – 100%
CLOSED THROT POS
(CLOSED THROTTLE
POSITION)Throttle valve at idle position ON
Throttle valve opens larger than idle posi-
tionOFF
FUEL CUT When engine is at fuel cut condition ON
Other than fuel cut condition OFF
RADIATOR FAN
(RADIATOR FAN CON-
TROL RELAY)Ignition switch
ONEngine coolant temp. :
Lower than 95°C (203°F)OFF
Engine coolant temp. :
97.5°C (208°F) or higherON
ELECTRIC LOAD Ignition switch ON/Headlight, small light
and rear window defogger all turned OFFOFF
Ignition switch ON/Headlight, small light or
rear window defogger turned ONON
A/C SWITCH Engine running after warming up, A/C not
operatingOFF
Engine running after warming up, A/C oper-
atingON SCAN TOOL DATA VEHICLE CONDITION NORMAL CONDITION/
REFERENCE VALUES

ENGINE GENERAL INFORMATION AND DIAGNOSIS 6-35
RADIATOR FAN (RADIATOR FAN CONTROL RELAY, ON/OFF)
ON : Command for radiator fan control relay operation being output.
OFF : Command for relay operation not being output.
ELECTRIC LOAD (ON/OFF)
ON : Headlight, small light or rear window defogger ON signal inputted.
OFF : Above electric loads all turned OFF.
A/C SWITCH (ON/OFF)
ON : Command for A/C operation being output from ECM to A/C compressor magnet clutch.
OFF : Command for A/C operation not being output.
FUEL TANK LEVEL (%)
This parameter indicates approximate fuel level in the fuel tank. As the detectable range of the fuel level sensor
is set as 0 to 100%, however, with some models whose fuel tank capacity is smaller, the indicated fuel level may
be only 70% even when the fuel tank is full.
PNP SIGNAL (PARK/NEUTRAL POSITION SIGNAL, P/N RANGE or D RANGE)
It is detected by signal from TCM.
D range : A/T is in “R”, “D”, “2” or “L” range.
P/N range : A/T is in “P” or “N” range or the above signal is not inputted from TCM.
EGR VALVE (%)
This parameter indicates opening rate of EGR valve which controls the amount of EGR flow.