Suzuki Liana RH418, Supplementary Service Manual

Page: 105 / 371

Engine General Information and Diagnosis: 1A-92
Idle Air Control Circuit Check
S3RH0B1104057
System / Wiring Diagram
DTC Troubleshooting
C41 (31P) G04 (24P) G03 (17P)
1 2 3 4 5 6 7 8 9
10 11 12 13 14 15 16 17 18 19 20 21
22 23 24 25 26 28 27 29 30 31
5 6 1 2 3 4 5 6 7
11 12 9 10 11 13 12 14 15 16
16 17
1 2
7 8
13 14
3 4
9 10
15 17 18
8
19 20 21 22 23 24
2
1
3
4
C41-6
G04-5
G04-6
G04-10
GRN/RED
BLK
BLK/RED
BRN/WHT
BLK/RED
ECM
I2RH0B110066-01
1. Ignition switch 3. Main relay
2. Battery 4. IAC valve
Step Action Yes No
1 Is SUZUKI scan tool available? Go to Step 2. Go to Step 3.
2 Check idle air control system
1) Connect SUZUKI scan tool to DLC with ignition switch
OFF, set parking brake and block drive wheels.
2) Warm up engine to normal operating temperature.
3) Clear DTC and select “MISC TEST” mode on SUZUKI
scan tool.
Is it possible to control (increase and reduce) engine idle
speed by using SUZUKI scan tool?
Circuit is in good
condition. Go to Step 4.
3 Check idle air control system
1) Remove IAC valve from throttle body referring to “Idle Air
Control (IAC) Valve Inspection in Section 1C”.
2) Check IAC valve for operation referring to “Idle Air
Control (IAC) Valve Inspection in Section 1C”.
Is check result satisfactory?
IAC valve is in good
condition.
Check for intermittent
referring to “Intermittent
and Poor Connection
Inspection in Section 00
in related manual”. Go to Step 4.
IYSY01111094-01