Mitsubishi Colt Ralliart. Manual — part 45
TROUBLESHOOTING
MULTIPORT FUEL INJECTION (MPI) <4A9>
13A-134
Code No. P0335: Crank Angle Sensor System
OPERATION
• Power is supplied to the crank angle sensor (ter-
minal No. 3) from the engine control relay (termi-
nal No. 4) and is earthed to the engine-ECU
<M/T> or engine-CVT-ECU <CVT> (terminal No.
28) from the crank angle sensor (terminal No. 1).
• A power voltage of 5 V is applied to the crank
angle sensor output terminal (terminal No. 2)
from the engine-ECU <M/T> or engine-CVT-ECU
<CVT> (terminal No. 13).
AK402689
3
1
2
4
1
2 3
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
Crank Angle Sensor Circuit
1
1
R
Fusible link
16
20A
J/B
Engine
control
relay
Crank
angle
sensor
4
1
2
2
3
1
3
6
4
Engine-ECU <M/T> or
engine-CVT-ECU <CVT>
28
13
BR-W
G-R
R
L-W
R
B-106
A-114
B-112
A-17
B-108
A-133
MU802337
AC
To engine-ECU <M/T> or
engine-CVT-ECU <CVT>
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
TROUBLESHOOTING
MULTIPORT FUEL INJECTION (MPI) <4A9>
13A-135
FUNCTION
• The crank angle sensor detects the crank angle
(position) and inputs a pulse signal 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> controls the injector,
etc.
TROUBLE JUDGMENT
Check Condition
• Ignition switch is in "ON" position <M/T>.
Judgment Criteria
• Pulse signal from crank angle sensor continues
264 times and engine speed is less than 440
r/min <M/T>.
• Crank angle sensor signal pattern is abnormal
<M/T>.
Check Condition
• Ignition switch is in "ON" position <M/T>.
Judgment Criterion
• Crank angle sensor signal pattern is not normal
for 4 seconds and engine speed is more than 440
r/min <M/T>.
Check Condition
• While engine is cranking.
Judgment Criterion
• Crank angle sensor output voltage has not been
changed (no pulse signal has been input) for 4
seconds.
PROBABLE CAUSES
• Failed crank angle sensor
• Open/short circuit in crank angle sensor circuit or
loose connector contact
• Failed engine-ECU <M/T> or engine-CVT-ECU
<CVT>
DIAGNOSIS PROCEDURE
STEP 1. M.U.T.-III data list
• Refer to Data List Reference Table
.
a. Item 22: Crank angle sensor
Q: Is the check result normal?
YES :
Intermittent malfunction (Refer to GROUP
00
− How to Use
Troubleshooting/Inspection Service Points
−
How to Cope with Intermittent Malfunctions
).
NO :
Go to Step 2 .
STEP 2. Connector check: A-133 crank angle
sensor connector
Q: Is the check result normal?
YES :
Go to Step 3 .
NO :
Repair or replace the connector.
STEP 3. Perform voltage measurement at A-133
crank angle sensor connector.
• Disconnect connector, and measure at harness
side.
• Ignition switch: ON
• Voltage between terminal No. 2 and earth.
OK: 4.9
− 5.1 V
Q: Is the check result normal?
YES :
Go to Step 9 .
NO :
Go to Step 4 .
AK402016
1
2
3
AC
Connector: A-133
A-133 (B)
A-133 Harness side
connector
AK402016
1
2
3
AC
Connector: A-133
A-133 (B)
A-133 Harness side
connector
Main
Index
Group
TOC
TROUBLESHOOTING
MULTIPORT FUEL INJECTION (MPI) <4A9>
13A-136
STEP 4. Perform voltage measurement at A-114
engine-ECU connector or engine-CVT-ECU
connector.
• Disconnect engine-ECU connector or
engine-CVT-ECU connector, and connect special
tool power plant ECU check harness
(MB991987), and then measure the voltage on
the check connector.
• Disconnect A-133 crank angle sensor connector.
• Ignition switch: ON
• Voltage between terminal No. 13 and earth.
OK: 4.9
− 5.1 V
Q: Is the check result normal?
YES :
Go to Step 5 .
NO :
Go to Step 6 .
STEP 5. Connector check: A-114 engine-ECU
connector or engine-CVT-ECU connector
Q: Is the check result normal?
YES :
Check and repair harness between A-133
(terminal No. 2) crank angle sensor
connector and A-114 (terminal No. 13)
engine-ECU connector or engine-CVT-ECU
connector.
• Check output line for open circuit.
NO :
Repair or replace the connector.
AK402745
6
4
2
5
3
1
9
7
8
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
L
AE
A-114
Connector:
A-114
Engine-ECU <M/T> or
engine-CVT-ECU <CVT>
Battery
A-114 Special tool power plant ECU check
harness
AK402016
1
2
3
AC
Connector: A-133
A-133 (B)
A-133 Harness side
connector
AK402745
6
4
2
5
3
1
9
7
8
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
L
AD
A-114
Connector:
A-114
Harness side connector
Engine-ECU <M/T> or
engine-CVT-ECU <CVT>
Battery
AK402016
1
2
3
AC
Connector: A-133
A-133 (B)
A-133 Harness side
connector
Main
Index
Group
TOC
TROUBLESHOOTING
MULTIPORT FUEL INJECTION (MPI) <4A9>
13A-137
STEP 6. Connector check: A-114 engine-ECU
connector or engine-CVT-ECU connector
Q: Is the check result normal?
YES :
Go to Step 7 .
NO :
Repair or replace the connector.
STEP 7. Check harness between A-133 (terminal
No. 2) crank angle sensor connector and A-114
(terminal No. 13) engine-ECU connector or
engine-CVT-ECU connector.
• Check output line for short circuit.
Q: Is the check result normal?
YES :
Go to Step 8 .
NO :
Repair the damaged harness wire.
STEP 8. M.U.T.-III data list
• Refer to Data List Reference Table
.
a. Item 22: Crank angle sensor
Q: Is the check result normal?
YES :
Intermittent malfunction (Refer to GROUP
00
− How to Use Troubleshooting/Inspection
Service Points
− How to Cope with
Intermittent Malfunctions
).
NO :
Replace engine-ECU <M/T> or
engine-CVT-ECU <CVT>.
AK402745
6
4
2
5
3
1
9
7
8
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
L
AD
A-114
Connector:
A-114
Harness side connector
Engine-ECU <M/T> or
engine-CVT-ECU <CVT>
Battery
AK402016
1
2
3
AC
Connector: A-133
A-133 (B)
A-133 Harness side
connector
AK402745
6
4
2
5
3
1
9
7
8
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
L
AD
A-114
Connector:
A-114
Harness side connector
Engine-ECU <M/T> or
engine-CVT-ECU <CVT>
Battery
Main
Index
Group
TOC
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