Suzuki RA410 Manual page 403

6E1-38 ENGINE AND EMISSION CONTROL SYSTEM
TABLE B-4 IAC SYSTEM CHECK
TERMINAL ARRANGEMENT OF ECM/PCM CONNECTOR (VIEWED FROM HARNESS SIDE)
C11
C22
STEP
1 1) Check DTC, referring to DTC in this section.
2) Was DTC No. 12 displayed when diagnosis switch
terminal is grounded?
2 1) Warm up engine to normal operating temperature
and keep it idling.
2) Using service wire (1), ground Diag. switch terminal
(2) in monitor connector (3) and connect duty meter
(4) between Duty output ("F") terminal (5) and
Ground ("D") terminal (6) of monitor connector.
Check IAC duty (value indicated on duty meter) and
engine idle speed.
3) Are they within specification?
IAC duty
Engine idle speed: 750 – 850 rpm
5
9
8
7
V/W
B1
R/Bl
P/G
B6
C22
B
R/W
B15
R/B
B14
B
R/Y
C11 B13
B
B/R
A12
A1
B/Br
C1
C1 B6
B15 B14 B13
ACTION
: 5 – 25 %
2
3
4
1
6
B1
YES
Go to step 2.
Go to step 3.
1. IAC valve
2. Intake air
3. Bypass air
4. To combustion chambers
5. Throttle body
6. To main relay
7. ECM/PCM
8. Monitor connector
9. Sensed information
A1
A12
NO
Go back to Flow Table
corresponding to that
DTC.
Disconnect negative
cable at battery, Recon-
nect it and recheck.
If OK, go to step 4.