Suzuki Jimny Service Manual page 621

6E-16 ENGINE AND EMISSION CONTROL SYSTEM
1) Connect SUZUKI scan tool to DLC with ignition switch OFF,
if it is available.
2) Warm up engine to normal operating temperature.
3) Check engine idle speed and "IAC duty" as follows:
a) When using SUZUKI scan tool:
i) Select "Data List" mode on scan tool to check "IAC duty".
(A) : SUZUKI scan tool
b) When using duty meter (3) (Vehicle without immobilizer
indicator lamp):
NOTE:
IAC duty can be checked using monitor connector only
for vehicle not equipped with immobilizer indicator lamp.
i) Set tachometer.
ii) Using service wire (2), ground "Diag. switch terminal" in
monitor connector (1) and connect duty meter between
"Duty output terminal (4)" and "Ground terminal (5)" of
monitor connector (1).
[A] : When using SUZUKI scan tool
[B] : When using duty meter (Vehicle without immobilizer indicator lamp)
4) If duty and/or idle speed is out of specifications, inspect idle
air control system referring to "Diagnostic Flow Table B-4 Idle
Air Control System Check" in Section 6.
Engine idle speed and IAC duty
700 ± 50 r/min (rpm)
M/T vehicle
A/T vehicle 750 ± 50 r/min (rpm)
at P/N range
NOTE:
Above duty values are ON duty (low voltage rate) meter
indications.
5) Remove service wire from monitor connector.
6) Check that specified engine idle speed is obtained with A/C
ON if vehicle is equipped with A/C.
If not, check A/C ON signal circuit and idle air control sys-
tem.
A/C OFF
900 ± 50 r/min
5 – 25 %
900 ± 50 r/min
5 – 25 %
A/C ON
(rpm)
(rpm)