Mitsubishi Eclipse. Manual — part 403
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI) <3.0L>
13B-155
STEP 3. Check the sensor supply voltage at engine coolant
temperature sensor harness side connector B-11.
(1) Disconnect the connector B-11 and measure at the harness
side.
(2) Turn the ignition switch to the "ON" position.
(3) Measure the voltage between terminal No. 1 and ground.
• Voltage should be between 4.5 and 4.9 volts.
(4) Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is the measured voltage between 4.5 and 4.9 volts?
YES : Go to Step 7.
NO : Go to Step 4.
AK300435
1
2
CONNECTOR: B-11
AB
B-11 (B)
HARNESS CONNECTOR:
COMPONENT SIDE
AK000234
B-11 HERNESS
CONNECTOR:
COMPONENT SIDE
2 1
AI
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI) <3.0L>
13B-156
STEP 4. Check the sensor supply voltage at ECM
connector C-58 <M/T> or PCM connector C-55 <A/T> by
backprobing.
(1) Do not disconnect the ECM connector C-58 <M/T> or PCM
connector C-55 <A/T>.
(2) Disconnect the engine coolant temperature sensor
connector B-11.
(3) Turn the ignition switch to the "ON" position.
AK300462
42
43
48
49
50
51
52
53
54
55
56
57
46 45 44
58
59
60
61
62
63
64
65
66
47
41
CONNECTOR: C-55 <A/T>
C-55 (GR)
AB
HARNESS CONNECTOR:
COMPONENT SIDE
AK300748
65
43
50
42
49
41
48
60
61
64
46
47
58
59
67
68
45
56
66
52 51
44
53
62
54
63
57
55
CONNECTOR: C-58 <M/T>
AB
C-58 (GR)
HARNESS CONNECTOR:
COMPONENT SIDE
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI) <3.0L>
13B-157
(4) Measure the voltage between terminal No. 44 and ground
by backprobing.
• Voltage should be between 4.5 and 4.9 volts.
(5) Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is the measured voltage between 4.5 and 4.9 volts?
YES : Go to Step 5.
NO : Go to Step 6.
AK101401
41 42 43 44
48
50 51
49
52 5354 5556 57 58 59
45 46 47
60 61
62 63 64
65
67 68
66
AE
<M/T>
C-58 HARNESS
CONNECTOR:
HARNESS SIDE
54 55 56
46
45
44
58 59
60 61 62 63
64 65 66
47
41 42 43
48 49 50
57
51 52
AK101002
53
C-55 HARNESS
CONNECTOR:
HARNESS SIDE
<A/T>
AO
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI) <3.0L>
13B-158
STEP 5. Check connector C-58 at ECM <M/T> or connector
C-55 at PCM <A/T> for damage.
Q: Is the connector in good condition?
YES : Repair harness wire between engine coolant
temperature sensor connector B-11 and ECM
connector C-58 <M/T> or PCM connector C-55 <A/T>
because of open circuit. Then go to Step 11.
NO : Repair or replace it. Refer to GROUP 00E, Harness
Connector Inspection
. Then go to Step 11.
AK300462
42
43
48
49
50
51
52
53
54
55
56
57
46 45 44
58
59
60
61
62
63
64
65
66
47
41
CONNECTOR: C-55 <A/T>
C-55 (GR)
AB
HARNESS CONNECTOR:
COMPONENT SIDE
AK300748
65
43
50
42
49
41
48
60
61
64
46
47
58
59
67
68
45
56
66
52 51
44
53
62
54
63
57
55
CONNECTOR: C-58 <M/T>
AB
C-58 (GR)
HARNESS CONNECTOR:
COMPONENT SIDE
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