Table of Contents
Advertisement
1A-97 Engine General Information and Diagnosis:
Step
13 Check vehicle speed signal circuit for short
1) Turn ignition switch OFF position.
2) Disconnect connector from ECM and combination meter.
3) Turn ignition switch ON position without engine running.
4) Measure voltage from terminal "PPL" wire of TCM
connector to ground.
Is voltage 0 V?
14 Check VSS and its circuit
1) Check VSS and its circuit referring to "DTC P0720 (No.
31): Output Speed Sensor / VSS Circuit Malfunction in
Section 5A".
Is it result satisfactory?
15 Check vehicle speed signal circuit for short
1) Turn ignition switch OFF position.
2) Disconnect connector from combination meter.
3) Turn ignition switch ON position without engine running.
4) Measure voltage from terminal "PPL" wire of TCM
connector to ground.
Is voltage 4 – 5 V?
DTC P0505: Idle Control System Malfunction
System / Wiring Diagram
9
8
7
6
21
20
19
18
17
31
30
29
28 27
DTC Detecting Condition and Possible Cause
DTC detecting condition
• No closed signal to IAC valve is detected after engine start.
*2 driving cycle detection logic, continuous monitoring
Action
GRN/RED
BLK/RED
4
BLK
C41 (31P)
G04 (24P)
5
4
3
2
1
7
6
5
16
15
14
13
12
11
10
16
15
14
13 12
26
25
24
23
22
24
23
22
1. Ignition switch
2. Battery
Go to Step 14.
Go to Step 15.
Faulty speedometer.
C41-6
G04-5
G04-6
G04-10
BLK/RED
G03 (17P)
4
3
2
1
6
5
4
3
2
1
12
11
10
9
8
7
11
10
9
8
21
20
19
18
17
17
16
15
14
13
3. Main relay
4. IAC valve
• "BLK/RED", "GRN/RED" or "BLK" circuit open
or short
• IAC valve malfunction
• ECM malfunction
Yes
"PPL" wire shorted to
power supply.
Repair or replace for
VSS and its circuit.
"PPL" wire open or
shorted to ground.
Substitute a known-
good ECM and recheck.
ECM
1
3
2
Possible cause
No
S3RH0A1104058
I2RH0B110066-01
Advertisement
Chapters
Table of Contents
