Suzuki Wagon R Manual page 581

6E-14 ENGINE AND EMISSION CONTROL SYSTEM
When using SUZUKI scan tool:
When using duty meter (Vehicle without EGR valve):
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:
When using SUZUKI scan tool:
(a) Select "Data List" mode on scan tool to check "IAC duty".
(A): 09931-76011 (SUZUKI scan tool)
(B): Mass storage cartridge
(C): 09931-76030 (16/14 pin DLC cable)
When using duty meter (1) (Vehicle without EGR valve):
NOTE:
IAC duty can be checked using monitor connector only for
vehicle not equipped with EGR valve.
(a) Disconnect scan tool from DLC if connected.
(b) Set tachometer.
(c) Pull monitor connector (3) out of fender apron panel hole.
(d) Using service wire (2), ground "Diag. switch terminal" in mon-
itor connector (3) and connect duty meter between "Duty out-
put terminal" and "Ground terminal" of monitor connector (3).
If duty and/or idle speed is out of specifications, inspect idle air
control system referring to Diagnostic Flow Chart B-4 IDLE AIR
CONTROL SYSTEM CHECK in Section 6.
ENGINE IDLE SPEED AND IAC DUTY
700 ± 50 r/min (rpm)
M/T vehicle
750 ± 50 r/min (rpm)
A/T vehicle
at P/N range
NOTE:
D Above duty values are ON duty (low voltage rate) meter in-
dications.
D Duty values with (*) are applicable to vehicle used at high
altitude (higher than 2,000 m or 6,560 ft).
4) Remove service wire from monitor connector (3).
5) Insert monitor connector (3) in fender apron panel hole.
6) Check that 850 ± 50 r/min. idle speed is obtained with lighting
switch ON and heater blower switch in 2 – 4 position.
If not, check "Electric load (+)" circuit and "Heater blower switch
signal" circuit. Refer to "ELECTRONIC CONTROL SYSTEM" in
this section.
7) 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 system.
A/C OFF
3 – 30 or *3 – 40%
3 – 30 or *3 – 40%
A/C ON
850 ± 50 r/min
(rpm)
850 ± 50 r/min
(rpm)