Mitsubishi Eclipse. Manual — part 295
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI) <2.4L>
13A-673
STEP 6. Check for harness damage between power
steering pressure switch connector B-19 (terminal No. 1)
and ECM connector C-53 (terminal No.37) or PCM
connector C-54 (terminal No. 52).
Q: Is the harness wire in good condition?
YES : Replace the ECM or PCM. Then go to Step 7.
NO : Repair it. Then go to Step 7.
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-674
STEP 7. 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 not turned while idling, "OFF" will
be displayed.
• If the steering wheel is turned while idling, "ON" will be
displayed.
(4) Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is the switch operating properly?
YES : The procedure is complete.
NO : Repeat the troubleshooting.
AK300810
AB
MB991911
16-PIN
MB991827
MB991824
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI) <2.4L>
13A-675
DTC P0622: Generator FR Terminal Circuit Malfunction
AK000672
4
3
2
6
3 4
7 8
1 2
5
1
YELL
OW
-
BL
ACK
YELL
OW
-
BL
ACK
ENGINE CONTROL
MODULE (ECM) <M/T>
OR
POWERTRAIN CONTROL
MODULE (PCM) <A/T>
GENERATOR
VOLTAGE
REGULATOR
B-13
MU802749
B-45
MU802046
41 <M/T>
54 <A/T>
C-54 <A/T>
(MU803781)
C-53 <M/T>
(MU803771)
3
4
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
34
33
32
36
35
37
42
45
31
39
38
46
40 41
43 44
Generator Circuit
AK300064
CONNECTOR: B-45
AB
B-45 (GR)
AK300067
CONNECTOR: B-13
AB
B-13 (B)
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI) <2.4L>
13A-676
.
CIRCUIT OPERATION
• The ECM (terminal No. 41) <M/T> or PCM (termi-
nal No. 54) <A/T> apply a battery positive voltage
into the generator FR terminal No. 4 via resis-
tance inside the unit.
.
TECHNICAL DESCRIPTION
• When the generator field coils are controlled, the
generator FR terminal inputs signal to the ECM
<M/T> or PCM <A/T>.
• The ECM <M/T> or PCM <A/T> detects the gen-
erator output with the input signal, and controls
the idle air control motor according to the genera-
tor output.
.
DTC SET CONDITIONS
Check Conditions
• Engine speed is higher than 50 r/min.
Judgement Criteria
• Input voltage from the generator FR terminal has
continued to be approximately battery positive
voltage for 20 seconds.
.
TROUBLESHOOTING HINTS (The most likely
causes for this code to be set area: )
• Open or shorted generator FR terminal circuit, or
harness damage, or connector damage.
• ECM failed. <M/T>
• PCM failed. <A/T>
AK300060
ECM
CONNECTOR: C-53 <M/T>
AH
C-53 (G)
AK300060AB
C-54 (GR)
PCM
CONNECTOR: C-54 <A/T>
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