Suzuki SWIFT RS415 2017, Service Manual

Page: 182 / 1257

1A-134 Engine General Information and Diagnosis:
DTC P0505: Idle Air Control System
S4RS0A1104046
Wiring Diagram
DTC Detecting Condition and Trouble Area
DTC Confirmation Procedure
1) With ignition switch turned OFF, connect scan tool.
2) Turn ON ignition switch and clear DTC using scan tool.
3) Run engine at idle speed (more than 600 rpm) for 1 min. or more.
4) Check DTC and pending DTC.
11 VSS check
1) Check VSS and signal rotor tooth referring to “Vehicle
Speed Sensor (VSS) Inspection (M/T model): in Section
1C”.
Is check result satisfactory?
Substitute a known-
good ECM and recheck. Replace VSS or signal
rotor.
Step Action Yes No
E23 C37
3 4
18 19
5 6 7 10 11
17 20
47 46 49 50 51
21 22
52
16 25
9
24
14
29
55 57 54 53
59
60 58
2
26 27 28
15
30
56 48
32 31 34 35 36 37 40 42 39 38 44 45 43 41 33
1 12 13
23
8 3 4
18 19
5 6 7 10 11
17 20
47 46 49 50 51
21 22
52
16 25
9
24
14
29
55 57 54 53
59
60 58
2
26 27 28
15
30
56 48
32 31 34 35 36 37 40 42 39 38 44 45 43 41 33
1 12 13
23
8
BLK/WHT
BLK/RED BLK/RED
WHT
80A
BLK/YEL BLK/YEL
BLK/YEL
GRN
BRN/WHT
12V 5V
5
6
3
4
2
E23-29
E23-1
E23-60
C37-58
C37-15
C37-30
BLK/ORN
BLK
BLK
7 8
BLK/RED BLK/RED
E23-16
RED/WHT
BLK
1
C37-49
I4RS0A110045-
1. IAC valve 4. “IG COIL” fuse 7. “FI” fuse
2. ECM 5. Ignition switch 8. “IG ACC” fuse
3. Main relay 6. Battery fuse box
DTC detecting condition Trouble area
IAC control duty pulse is not detected in its monitor signal.
(2 driving cycle detection logic) • Idle air control valve and / or its circuit
• ECM