Mitsubishi L200. Manual — part 164
TROUBLESHOOTING
DIESEL FUEL
13A-452
Inspection Procedure 4: Starting Impossible (No Initial Combustion) <A/T>
1
1
1
2
3
4
AKB00287
1
2 3
6
7 8
4 5
9 10
101 102
103104 105 106107 108109 110 111112 113 114115
118119 120 121122 123124 125126127 128 129130
131132 133 134135 136137 138139140 141142 143
146147 148 149150 151152 153154155 156 157158
117
145
116
144
1 2 3
4 5 6
Wire colour code
B: Black LG: Light green G: Green L: Blue W: White Y: Yellow SB: Sky blue BR: Brown O: Orange GR: Grey
R: Red P: Pink V: Violet PU: Purple
Starting Impossible (no initial combustion) <A/T>
Battery
Fusible link
Ignition switch
Inhibitor
switch
3
5
5
10
9
6
B-10
J/B
2
4
7.5A
C-211
11
5
A-115
B-10
2
1
4
3
ON
OFF
ON
OFF
6
1
1
8
A-115
A-27
B-14
MU802645
C-207
R-B
R-B
R-B
R-B
B-Y
B
B-L
B-L
G-R
B-W
B-R
W
P
R
N
D
B-Y
B-Y
A-10
A-110
(MU801211)
C-103
A-16X
Engine-ECU
Starter
relay
Starter
C-307
IG2
ST
LOCK
ACC
IG1
111
10
A-115
AB
TROUBLESHOOTING
DIESEL FUEL
13A-453
COMMENT ON TROUBLE SYMPTOM
• Failure is possibly caused by failed starter itself
or failed related circuit.
PROBABLE CAUSES
• Failed battery
• Failed inhibitor switch
• Failed starter motor
• Failed starter relay
• Open/short circuit in starter associated circuit or
loose connector contact
• Failed engine-ECU
DIAGNOSIS PROCEDURE
STEP 1. Check battery voltage.
• Measure battery voltage at cranking.
OK: 8 V or higher
Q: Is the check result normal?
YES :
Go to Step 2.
NO :
Check battery (Refer to GROUP 54A
−
Battery-On-vehicle Service
− Battery Test ).
STEP 2. M.U.T.-III data list
• Item 40: Starter switch
OK:
ON (Ignition switch: ST)
OFF (Ignition switch: ON)
Q: Is the check result normal?
YES :
Go to Step 17.
NO :
Go to Step 3.
STEP 3. Connector check: A-16X starter relay
connector
Q: Is the check result normal?
YES :
Go to Step 4.
NO :
Repair or replace.
STEP 4. Check starter relay
• Check starter relay (Refer to GROUP 16 − Start-
ing System
− Starter Relay Check ).
Q: Is the check result normal?
YES :
Go to Step 5.
NO :
Replace the starter relay.
STEP 5. Perform voltage measurement at A-16X
starter relay connector.
• Disconnect connector, and measure at the har-
ness side.
• Ignition switch: ST
• Voltage between terminal No. 2 and earth.
OK: System voltage
Q: Is the check result normal?
YES :
Go to Step 11.
NO :
Go to Step 6.
STEP 6. Connector check: B-14 inhibitor switch
connector
Q: Is the check result normal?
YES :
Go to Step 7.
NO :
Repair or replace.
STEP 7. Check inhibitor switch
• Check inhibitor switch (Refer to GROUP 23A −
On-vehicle Service
− Inhibitor Switch Continuity
Check ).
Q: Is the check result normal?
YES :
Go to Step 8.
NO :
Replace the inhibitor switch.
AK501014
2
1
3
4
AC
A-16X
Connector: A-16X
Relay box's side connector
AK501014
2
1
3
4
AC
A-16X
Connector: A-16X
Relay box's side connector
AK700823
3
4
5
8
9
1
2
6
7
10
AB
Connector: B-14
B-14 (B)
Harness side
connector
TROUBLESHOOTING
DIESEL FUEL
13A-454
STEP 8. Perform voltage measurement at B-14
inhibitor switch connector
• Disconnect connector, and measure at the har-
ness side.
• Ignition switch: ST
• Voltage between terminal No. 10 and earth.
OK: System voltage
Q: Is the check result normal?
YES :
Check intermediate connectors A-115 and
B-10, and repair if necessary. If starter relay
connector are normal, check and repair
harness between A-16X (terminal No. 2)
starter relay connector and B-14 (terminal
No. 9) inhibitor switch connector.
• Check power supply line for open/
short circuit.
NO :
Go to Step 9.
STEP 9. Connector check: C-307 ignition switch
connector
Q: Is the check result normal?
YES :
Go to Step 10.
NO :
Repair or replace.
AK700823
3
4
5
8
9
1
2
6
7
10
AB
Connector: B-14
B-14 (B)
Harness side
connector
AK501014
2
1
3
4
AC
A-16X
Connector: A-16X
Relay box's side connector
AKB00286
1
2
3
4
5
6
C-307
Connector: C-307
<R.H. drive vehicles>
C-307
AB
Harness side connector
<L.H. drive vehicles>
TROUBLESHOOTING
DIESEL FUEL
13A-455
STEP 10. Check ignition switch
• Check ignition switch (Refer to GROUP 54A −
Ignition switch
− Inspection ).
Q: Is the check result normal?
YES :
Check intermediate connectors A-115, B-
10, C-207 and C-211, and repair if
necessary. If starter relay connectors are
normal, check and repair harness between
B-14 (terminal No. 10) inhibitor switch
connector and C-307 (terminal No. 5)
ignition switch connector.
• Check power supply line for open/
short circuit.
NO :
Replace the ignition switch.
STEP 11. Perform voltage measurement at A-16X
starter relay connector.
• Disconnect connector, and measure at the har-
ness side.
• Voltage between terminal No. 4 and earth.
OK: System voltage
Q: Is the check result normal?
YES :
Go to Step 12.
NO :
Check and repair harness between A-16X
(terminal No. 4) starter relay connector and
battery.
• Check power supply line for open/
short circuit.
STEP 12. Perform resistance measurement at A-
16X starter relay connector.
• Disconnect connector, and measure at harness
side.
• Resistance between terminal No. 1 and earth.
OK: Continuity (2
Ω or less)
Q: Is the check result normal?
YES :
Go to Step 13.
NO :
Check and repair harness between A-16X
(terminal No. 1) starter relay connector and
body earth.
• Check earth line for open circuit and
damage.
AK700823
3
4
5
8
9
1
2
6
7
10
AB
Connector: B-14
B-14 (B)
Harness side
connector
AKB00286
1
2
3
4
5
6
C-307
Connector: C-307
<R.H. drive vehicles>
C-307
AB
Harness side connector
<L.H. drive vehicles>
AK501014
2
1
3
4
AC
A-16X
Connector: A-16X
Relay box's side connector
AK501014
2
1
3
4
AC
A-16X
Connector: A-16X
Relay box's side connector
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