Mitsubishi Eclipse. Manual — part 286
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI) <2.4L>
13A-637
STEP 12. Check for harness damage between MFI relay
connector A-18X (terminal No. 4) and idle air control motor
connector B-34 (terminal No. 2, No. 5).
Q: Is the harness wire in good condition?
YES : Go to Step 13.
NO : Repair it. Then go to Step 14.
AK300454
2
1
3
4
CONNECTOR: A-18X
AB
A-18X
HARNESS CONNECTOR:
COMPONENT SIDE
AK300408
1
2
3
4
5
6
CONNECTOR: B-34
AB
B-34 (B)
HARNESS CONNECTOR:
COMPONENT SIDE
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI) <2.4L>
13A-638
STEP 13. Check for harness damage between idle air
control motor connector B-34 and ECM connector C-49
<M/T> or PCM connector C-50 <A/T>.
a. Idle air control motor connector B-34 (terminal No. 1) and
ECM connector C-49 (terminal No. 4) <M/T> or PCM con-
nector C-50 (terminal No. 14) <A/T>.
b. Idle air control motor connector B-34 (terminal No. 3) and
ECM connector C-49 (terminal No. 17) <M/T> or PCM con-
nector C-50 (terminal No. 28) <A/T>.
c. Idle air control motor connector B-34 (terminal No. 4) and
ECM connector C-49 (terminal No. 5) <M/T> or PCM con-
nector C-50 (terminal No. 15) <A/T>.
d. Idle air control motor connector B-34 (terminal No. 6) and
ECM connector C-49 (terminal No. 18) <M/T> or PCM con-
nector C-50 (terminal No. 29) <A/T>.
Q: Is the harness wire in good condition?
YES : Replace the ECM or PCM. Then go to Step 14.
NO : Repair it. Then go to Step 14.
AK300408
1
2
3
4
5
6
CONNECTOR: B-34
AB
B-34 (B)
HARNESS CONNECTOR:
COMPONENT SIDE
AK300413
1
14
4
19
5
22
6
17
8
15
9
18
7
20
16
2
21
23
26
24
25
3
10
11
12
13
CONNECTOR: C-49 <M/T>
C-49 (G)
AB
HARNESS CONNECTOR:
COMPONENT SIDE
AK300414
2
3
4
5
6
7
8
9
11
12
13
14
15
16
17
18
19
20
30
21
22
23
24
25
26
27
28
29
31
32
33
34
35
1
10
C-50 (GR)
CONNECTOR: C-50 <A/T>
AB
HARNESS CONNECTOR:
COMPONENT SIDE
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI) <2.4L>
13A-639
STEP 14. Test the OBD-II drive cycle.
(1) Carry out a test drive with the drive cycle pattern. Refer to
Diagnostic Function
− OBD-II Drive Cycle − Procedure 6 −
Other Monitor
(2) Check the diagnostic trouble code (DTC).
Q: Is DTC P0506 set?
YES : Retry the troubleshooting.
NO : The inspection is complete.
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI) <2.4L>
13A-640
DTC P0507: Idle Control System RPM Higher Than Expected
AK101522
6
17
8
15
9
18
7
20
16
2
10
13
12
23 24 25 26
11
21
3
1
14
4
12
11
16
5 6
7 8
21
13
27
14
28
15
29
17
30
18
31
19
32
20
33
22
34
23
35
1
24
3
26
9
2
25
10
19
5
4
22
1 2
4 5 6
3
RED
-
WHITE
RED
-
WHITE
RED
-
WHITE
RED
RED
RED
GREEN-BL
ACK
GREEN-RED
GREEN-
WHITE
BL
ACK
-YELL
OW
C-49 <M/T>
(MU803773)
C-50 <A/T>
(MU803784)
B-34
IDLE AIR
CONTROL (IAC)
MOTOR
BATTERY
Idle Air Control (IAC) Motor Circuit
MFI
RELAY
1
4
2
3
3
1
2
4
5
6
ENGINE CONTROL
MODULE (ECM) <M/T>
OR
POWERTRAIN CONTROL
MODULE (PCM) <A/T>
4 <M/T>
14 <A/T>
17 <M/T>
28 <A/T>
5 <M/T>
15 <A/T>
18 <M/T>
29 <A/T>
3 4
1 2
A-18X
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