Mitsubishi Eclipse. Manual — part 517
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI) <3.0L>
13B-611
STEP 6. Check the power supply voltage at ECM connector
C-51 <M/T> or PCM connector C-52 <A/T> by backprobing.
(1) Do not disconnect the connector C-51 <M/T> or C-52
<A/T>.
(2) Turn the ignition switch to the "ON" position.
(3) Measure the voltage between terminal No. 6 and ground by
backprobing.
• Voltage should be battery positive voltage.
(4) Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is battery positive voltage (approximately 12 volts)
present?
YES : Go to Step 9.
NO : Go to Step 7.
AK300443
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10
CONNECTOR: C-51 <M/T>
C-51 (GR)
AB
HARNESS CONNECTOR:
COMPONENT SIDE
AK300458
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CONNECTOR: C-52 <A/T>
C-52 (GR)
AB
HARNESS CONNECTOR:
COMPONENT SIDE
AKX01546
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3 4
5 6
7 8
10 11 12 13 14 15 16 17 18 19 20 21 22 23
24 25
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30 31 32 33
34 35
C-51<M/T>, C-52<A/T>
HARNESS CONNECTOR:
HARNESS SIDE
AG
9
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI) <3.0L>
13B-612
STEP 7. Check connector C-51 at ECM <M/T> or connector
C-52 at PCM <A/T> for damage.
Q: Is the connector in good condition?
YES : Go to Step 8.
NO : Repair or replace it. Refer to GROUP 00E, Harness
Connector Inspection
. Then go to Step 12.
AK300443
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10
CONNECTOR: C-51 <M/T>
C-51 (GR)
AB
HARNESS CONNECTOR:
COMPONENT SIDE
AK300458
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30
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10
CONNECTOR: C-52 <A/T>
C-52 (GR)
AB
HARNESS CONNECTOR:
COMPONENT SIDE
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI) <3.0L>
13B-613
STEP 8. Check for open circuit and short circuit to ground
between EGR vacuum regulator solenoid valve connector
B-31 (terminal No. 2) and ECM connector C-51 (terminal
No. 6) <M/T> or PCM connector C-52 (terminal No. 6)
<A/T>.
Q: Is the harness wire in good condition?
YES : Replace the ECM or PCM. Then go to Step 12.
NO : Repair it. Then go to Step 12.
AK300436
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2
CONNECTOR: B-31 <WITHOUT INTAKE
MANIFOLD TUNING SYSTEM>
AB
B-31 (BR)
HARNESS CONNECTOR:
COMPONENT SIDE
AK300430
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2
CONNECTOR: B-31 <WITH INTAKE
MANIFOLD TUNING SYSTEM>
AB
B-31 (BR)
HARNESS CONNECTOR:
COMPONENT SIDE
AK300458
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35
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10
CONNECTOR: C-52 <A/T>
C-52 (GR)
AB
HARNESS CONNECTOR:
COMPONENT SIDE
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI) <3.0L>
13B-614
STEP 9. Check connector C-51 at ECM <M/T> or connector
C-52 at PCM <A/T> for damage.
Q: Is the connector in good condition?
YES : Go to Step 10.
NO : Repair or replace it. Refer to GROUP 00E, Harness
Connector Inspection
. Then go to Step 12.
AK300443
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10
CONNECTOR: C-51 <M/T>
C-51 (GR)
AB
HARNESS CONNECTOR:
COMPONENT SIDE
AK300458
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10
CONNECTOR: C-52 <A/T>
C-52 (GR)
AB
HARNESS CONNECTOR:
COMPONENT SIDE
AK300443
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30
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10
CONNECTOR: C-51 <M/T>
C-51 (GR)
AB
HARNESS CONNECTOR:
COMPONENT SIDE
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