Mitsubishi Eclipse. Manual — part 293
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI) <2.4L>
13A-665
STEP 10. Check for short circuit to ground between power
steering pressure switch connector B-19 (terminal No. 1)
and ECM connector C-53 (terminal No. 37) <M/T> or PCM
connector C-54 (terminal No. 52) <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.
AK300105
1
B-19
AB
CONNECTOR: B-19
HARNESS
CONNECTOR:
COMPONENT SIDE
AK300417
34 33 32
36 35
37
42
45
31
39
38
46
40
41
43
44
CONNECTOR: C-53 <M/T>
C-53 (G)
AB
HARNESS CONNECTOR:
COMPONENT SIDE
AK300412
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
C-54 (GR)
CONNECTOR: C-54 <A/T>
AB
HARNESS CONNECTOR:
COMPONENT SIDE
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI) <2.4L>
13A-666
STEP 11. Replace the power steering pressure switch.
(1) Replace the power steering pressure switch.
(2) Check the trouble symptoms.
(3) Check the diagnostic trouble code (DTC).
Q: Is DTC P0551 set?
YES : Go to Step 12.
NO : Go to Step 14.
STEP 12. Check connector C-53 at ECM <M/T> or
connector C-54 at PCM <A/T> for damage.
Q: Is the connector in good condition?
YES : Go to Step 13.
NO : Repair or replace it. Refer to GROUP 00E, Harness
Connector Inspection
. Then go to Step 14.
AK300105
1
B-19
AB
CONNECTOR: B-19
HARNESS
CONNECTOR:
COMPONENT SIDE
AK300417
34 33 32
36 35
37
42
45
31
39
38
46
40
41
43
44
CONNECTOR: C-53 <M/T>
C-53 (G)
AB
HARNESS CONNECTOR:
COMPONENT SIDE
AK300412
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
C-54 (GR)
CONNECTOR: C-54 <A/T>
AB
HARNESS CONNECTOR:
COMPONENT SIDE
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI) <2.4L>
13A-667
STEP 13. Check for harness damage between power
steering pressure switch connector B-19 (terminal No. 1)
and ECM connector C-53 (terminal No. 37) <M/T> or PCM
connector C-54 (terminal No. 52) <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.
AK300105
1
B-19
AB
CONNECTOR: B-19
HARNESS
CONNECTOR:
COMPONENT SIDE
AK300417
34 33 32
36 35
37
42
45
31
39
38
46
40
41
43
44
CONNECTOR: C-53 <M/T>
C-53 (G)
AB
HARNESS CONNECTOR:
COMPONENT SIDE
AK300412
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
C-54 (GR)
CONNECTOR: C-54 <A/T>
AB
HARNESS CONNECTOR:
COMPONENT SIDE
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI) <2.4L>
13A-668
STEP 14. Using scan tool MB991958, check data list item
27: Power Steering Pressure Switch.
CAUTION
To prevent damage to scan tool MB991958, always turn the
ignition switch to the "LOCK" (OFF) position before con-
necting or disconnecting scan tool MB991958.
(1) Connect scan tool MB991958 to the data link connector.
(2) Start the engine and run at idle.
(3) Set scan tool MB991958 to the data reading mode for item
27, Power Steering Pressure Switch.
• If the steering wheel is stopped while idling, "OFF" will
be displayed.
• If the steering wheel is steered while idling, "ON" will be
displayed.
(4) Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is the switch operating properly?
YES : The inspection is complete.
NO : Retry the troubleshooting.
DTC P0554: Power Steering Pressure Switch Circuit Intermittent
AK300810
AB
MB991911
16-PIN
MB991827
MB991824
AK000670
34
33
32
36
35
37
42
45
31
39
38
46
40 41
1
43 44
YELL
O
W
ENGINE CONTROL
MODULE (ECM) <M/T>
OR
POWERTRAIN CONTROL
MODULE (PCM) <A/T>
C-53 <M/T>
(MU803771)
C-54 <A/T>
(MU803781)
37 <M/T>
52 <A/T>
POWER STEERING
PRESSURE SWITCH
B-19
1
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
Power Steering Pressure Switch Circuit
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