Suzuki GA413, Service Manual

Page: 467 / 1246

[Using SUZUKI scan tool]
1) Connect SUZUKI scan tool to DLC with ignition switch OFF
position.
Special Tool
(A): 09931-76011 (SUZUKI scan tool)
(B): Mass storage cartridge
(C): 09931-76030 (16 / 14 pin DLC cable)
2) Start engine and warm it up to normal operating temperature.
3) Confirm that all accessories (light, A/C, blower fan, etc.) are out
of service.
4) Check idle speed and IAC duty by using “DATA LIST” mode of
SUZUKI scan tool.
NOTE:
Check to ensure that radiator fan is not running and then
measure IAC-duty.
1. Monitor coupler
2. Service wire
3. Duty meter
4. Main fuse box A: Blank
B: Diagnosis switch terminal
C: Blank
D: Ground terminal
E: Test switch terminal
F: Duty output terminal
With A/C equipped vehicle, check idle speed while A/C com-
pressor is operating.
[Not using SUZUKI scan tool]
1) Disconnect scan tool from DLC if connected.
2) Using service wire, ground diagnosis switch terminal in monitor
connector.
3) Connect duty meter between duty output terminal and ground
terminal of monitor connector.
4) Set tachometer.
5) Start engine and warm it up to normal operating temperature.
6) Confirm that all accessories (light, A/C, blower fan, etc.) are out
of service.
7) Check idle speed and IAC duty.
NOTE:
Check to ensure that radiator fan is not running and then
measure IAC-duty.
If idle speed and/or duty is out of specifications, check idle air
control system. Refer to “B-4 Idle Air Control System Check” in
this section.
With A/C equipped vehicle, check idle speed while A/C com-
pressor is operating.
ENGINE AND EMISSION CONTROL SYSTEM 6E-57
Engine speed (A/C OFF) 700 – 800 [RPM]
IAC duty (A/C OFF) 3 – 40 [%]
Engine speed (A/C ON) 850 – 950 [RPM]
Engine speed (A/C OFF) 700 – 800 [RPM]
IAC duty (A/C OFF) 3 – 40 [%]
Engine speed (A/C ON) 850 – 950 [RPM]