Mitsubishi Eclipse. Manual — part 335
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI) <2.4L>
13A-833
STEP 2. Measure the output voltage at ECM harness side
connector C-49 <M/T> or PCM harness side connector
C-50 <A/T>.
(1) Disconnect the connector C-49 <M/T> or C-50 <A/T> and
measure at the harness side.
(2) Turn the ignition switch to the "ON" position.
AK300413
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14
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19
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22
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17
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18
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16
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21
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26
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10
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CONNECTOR: C-49 <M/T>
C-49 (G)
AB
HARNESS CONNECTOR:
COMPONENT SIDE
AK300414
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30
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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-834
(3) Measure the voltage between terminal No. 21 <M/T> or No.
18 <A/T> and ground.
• Voltage should be between 4.8 and 5.2 volts. (Fan
rotates at high speed.)
(4) Connect a jumper cable between terminal No. 21 <M/T> or
No. 18 <A/T> and ground.
• The fan should stop.
(5) Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is the voltage and fan condition normal?
YES : Replace the ECM or PCM. Then confirm that the
malfunction symptom is eliminated.
NO : Go to Step 3.
AK000400AI
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<M/T>
C-49 HARNESS
CONNECTOR:
COMPONENT SIDE
AK000401AK
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<A/T>
C-50 HARNESS
CONNECTOR:
COMPONENT SIDE
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI) <2.4L>
13A-835
STEP 3. Check for open circuit and short circuit to ground
and harness damage between fan controller A-30 (terminal
No. 2) and ECM connector C-49 (terminal No. 21) <M/T> or
PCM connector C-50 (terminal No. 18) <A/T>.
AK300451
1
2
3
CONNECTOR: A-30
AB
A-30 (GR)
HARNESS
CONNECTOR:
COMPONENT SIDE
AK300413
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14
4
19
5
22
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17
8
15
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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
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30
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35
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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-836
NOTE: Check harness after checking intermediate connector
C-07. If intermediate connector is damaged, repair or replace
them. Refer to GROUP 00E, Harness Connector Inspection
. Then confirm that the malfunction symptom is elimi-
nated.
Q: Is the harness wire in good condition?
YES : Refer to GROUP 14
− Engine Cooling Diagnosis −
NO : Repair it. Then confirm that the malfunction symptom
is eliminated.
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