Mitsubishi Colt Ralliart. Manual — part 53
![](/vehicles/winoney/ama/flend/uker.png)
TROUBLESHOOTING
MULTIPORT FUEL INJECTION (MPI) <4A9>
13A-166
Code No. P0513: Immobilizer Malfunction
OPERATION
• The signals are sent and received between
engine-ECU <M/T> or engine-CVT-ECU <CVT>
(terminal No. 120) and immobilizer-ECU (terminal
No. 3).
FUNCTION
• The engine-ECU <M/T> or engine-CVT-ECU
<CVT> sends or receives the control signals to or
from immobilizer-ECU to certify the ignition key.
NOTE:
.
•
If the registered ignition keys are close each
other when starting the engine, radio interfer-
ence may cause this code to be displayed.
•
This code may be displayed when registering
the key encrypted code.
TROUBLE JUDGMENT
Check Condition
• Ignition switch is in "ON" position.
Judgment Criterion
• The communication error between engine-ECU
<M/T> or engine-CVT-ECU <CVT> and the
immobilizer-ECU for 4 seconds.
PROBABLE CAUSES
• Open/short circuit in immobilizer system circuit or
loose connector contact
• Failed immobilizer-ECU
• Failed engine-ECU <M/T> or engine-CVT-ECU
<CVT>
AK503589
R
92 93 94 95969798
77 78 79 808182838485868788899091
99
100
107 108 109 110 111112113114115116117118119120121
122 123 124 125126127128129130131132133134135136
101102103104105106
71 72
73 74
75 76
1 2 3 4 5 6 7 8
AC
Immobilizer-ECU Circuit
B-49
A-08
Engine-ECU <M/T> or
engine-CVT-ECU <CVT>
Immobilizer-ECU
Wire clolour code
B: Black LG: Light green G: Green L: Blue W: White Y: Yellow SB: Sky blue BR: Brown O: Orange GR: Gray
R: Red P: Pink V: Violet
PU: Purple
120
10
B-40
BR
BR
3
Main
Index
Group
TOC
![](/vehicles/winoney/ama/flend/chesablling.png)
TROUBLESHOOTING
MULTIPORT FUEL INJECTION (MPI) <4A9>
13A-167
DIAGNOSIS PROCEDURE
STEP 1. Connector check: B-49 immobilizer-ECU
connector and A-08 engine-ECU connector or
engine-CVT-ECU connector.
Q: Is the check result normal?
YES :
Go to Step 2 .
NO :
Repair or replace.
STEP 2. Check harness between B-49 (terminal
No. 3) immobilizer-ECU connector and A-08
(terminal No. 120) engine-ECU connector or
engine-CVT-ECU connector.
NOTE: Before checking harness, check intermediate
connector B-40, and repair if necessary.
• Check output line for open/short circuit and dam-
age.
Q: Is the check result normal?
YES :
Go to Step 3 .
NO :
Repair.
STEP 3. Check the trouble symptoms.
Q: Is the check result normal?
YES :
Go to Step 4 .
NO :
Intermittent malfunction (Refer to GROUP
00
− How to Use Troubleshooting/Inspection
Service Points
− How to Cope with
Intermittent Malfunctions
).
AK503591
8 7 6 5 4 3 2 1
B-49
AB
Connectr: B-49
Harness side
connector
AK402725
77
78
79
80
81
82
83
84
92
93
94
95
96
97
98
99
85
86
87
88
89
90
91
100
101
102
103
104
105
106
115
116
117
118
119
120
121
107
108
109
110
111
112
113
114
130
131
132
133
134
135
136
122
123
124
125
126
127
128
129
72 71
74 73
76 75
R
AG
A-08
Connector:
A-08
Harness side connector
Battery
Engine-ECU <M/T> or
engine-CVT-ECU <CVT>
AK503591
8 7 6 5 4 3 2 1
B-49
AB
Connectr: B-49
Harness side
connector
AK402725
77
78
79
80
81
82
83
84
92
93
94
95
96
97
98
99
85
86
87
88
89
90
91
100
101
102
103
104
105
106
115
116
117
118
119
120
121
107
108
109
110
111
112
113
114
130
131
132
133
134
135
136
122
123
124
125
126
127
128
129
72 71
74 73
76 75
R
AG
A-08
Connector:
A-08
Harness side connector
Battery
Engine-ECU <M/T> or
engine-CVT-ECU <CVT>
Main
Index
Group
TOC
![](/vehicles/winoney/ama/flend/qume.png)
TROUBLESHOOTING
MULTIPORT FUEL INJECTION (MPI) <4A9>
13A-168
STEP 4. After replacing the immobilizer-ECU,
re-check the trouble symptoms.
Q: Is the check result normal?
YES :
Replace engine-ECU <M/T> or
engine-CVT-ECU <CVT>.
NO :
Check end.
Code No. P0603: EEP ROM MALFUNCTION
FUNCTION
• To check whether the information such as the idle
learned value and so on is stored in the memory
of engine-ECU <M/T> or engine-CVT-ECU
<CVT>.
TROUBLE JUDGMENT
Check Condition
• Ignition switch is in ON position.
Judgement Criterion
• The latest learned data that was flashed while the
ignition switch was in OFF position are not stored
correctly.
PROBABLE CAUSE
• Failed the engine-ECU <M/T> or
engine-CVT-ECU <CVT>
DIAGNOSIS
STEP 1. M.U.T.-III diagnosis code
• Reconfirmation of diagnosis code.
Q: Is the check result normal?
YES :
Replace engine-ECU <M/T> or
engine-CVT-ECU <CVT>.
NO :
Intermittent malfunction (Refer to GROUP
00
− How to Use
Troubleshooting/Inspection Service Points
−
How to Cope with Intermittent Malfunctions
).
Code No. P0606: Microcomputer Malfunction System
FUNCTION
• The engine-ECU <M/T> or engine-CVT-ECU
<CVT> check whether the microcomputer, which
performs the drive control of the throttle valve, is
normal.
TROUBLE JUDGMENT
Check Condition
• Ignition switch is ON position.
Judgment Criteria
• Battery voltage is more than 6.3 V <M/T>.
or
• Main microcomputer reference voltage is abnor-
mal.
PROBABLE CAUSE
• Failed engine-ECU <M/T> or engine-CVT-ECU
<CVT>
DIAGNOSIS
STEP 1. M.U.T.-III diagnosis code
• Reconfirmation of diagnosis code.
Q: Is the diagnosis code set?
YES :
Replace engine-ECU <M/T> or
engine-CVT-ECU <CVT>.
NO :
Intermittent malfunction (Refer to GROUP
00
− How to Use
Troubleshooting/Inspection Service Points
−
How to Cope with Intermittent Malfunctions
).
Main
Index
Group
TOC
![](/vehicles/winoney/ama/flend/tsi.png)
TROUBLESHOOTING
MULTIPORT FUEL INJECTION (MPI) <4A9>
13A-169
Code No. P0622: Alternator FR Terminal System
OPERATION
• The energized state of the alternator field coil is
inputted from the alternator (terminal No. 4) to the
engine-ECU <M/T> or engine-CVT-ECU <CVT>
(terminal No. 65).
FUNCTION
• A signal of the power supply duty ratio for the
alternator field coil is inputted to the engine-ECU
<M/T> or engine-CVT-ECU <CVT>.
• In response to the signal, the engine-ECU <M/T>
or engine-CVT-ECU <CVT> detects the alterna-
tor output current and controls the idling speed
according to the output current (electric load).
TROUBLE JUDGMENT
Check Conditions
• After engine starts <M/T>
• Engine speed is 50 r/min or higher <CVT>.
Judgment Criterion
• Input voltage from the alternator FR terminal has
continued to be system voltage for 20 seconds.
PROBABLE CAUSES
• Failed alternator
• Open/short circuit in alternator FR terminal circuit
or loose connector contact
• Failed engine-ECU <M/T> or engine-CVT-ECU
<CVT>
AK402692
1
2
3 4
19
21
20
18
17
16
15
14
1213
11
8 9
L
10
37
52 53 54 555657585960616263646566
38 39 404142434445464748495051
22 23 24 252627282930313233343536
7
5
3
1
6
4
2
Engine-ECU <M/T> or
engine-CVT-ECU <CVT>
Alternator
Y-B
IC voltage
regulator
65
4
Alternator Circuit
A-131
(MU802046)
A-114
AD
Wire colour code
B: Black LG: Light green G: Green L: Blue W: White Y: Yellow SB: Sky blue BR: Brown O: Orange GR: Gray
R: Red P: Pink V: Violet Pu: Purple
Main
Index
Group
TOC
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