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1A-134 Engine General Information and Diagnosis:
Step
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?
DTC P0505: Idle Air Control System
Wiring Diagram
GRN
5
4
WHT
6
8
7
80A
15
14
13
12
11
30
29
28
27
26
44
45
43
42
41
60
59
58
57
56
DTC Detecting Condition and Trouble Area
DTC detecting condition
IAC control duty pulse is not detected in its monitor signal.
(2 driving cycle detection logic)
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.
Action
3
BLK/YEL
BLK/YEL
BLK/YEL
1
E23
10
9
8
7
6
5
4
3
25
24
23
22
21
20
19
18
40
39 38
37
36
35
34
33
55
54 53
52
51
50
49
48
1. IAC valve
2. ECM
3. Main relay
Substitute a known-
good ECM and recheck.
BLK/WHT
BRN/WHT
BLK/RED
BLK/RED
BLK/RED
BLK/RED
RED/WHT
BLK
2
1
15
14
13
12
11
17
16
30
29
28
27
26
44
32 31
45
43
42
41
47 46
60
59
58
57
56
4. "IG COIL" fuse
7. "FI" fuse
5. Ignition switch
8. "IG ACC" fuse
6. Battery fuse box
• Idle air control valve and / or its circuit
• ECM
Yes
Replace VSS or signal
rotor.
2
E23-29
C37-58
BLK/ORN
C37-15
BLK
C37-30
BLK
E23-60
5V
12V
E23-1
E23-16
C37-49
C37
10
9
8
7
6
5
4
3
25
24
23
22
21
20
19
18
40
39 38
37
36
35
34
33
55
54 53
52
51
50
49
48
Trouble area
No
S4RS0A1104046
2
1
17
16
32 31
47 46
I4RS0A110045-
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