Mitsubishi L200. Manual — part 76
TROUBLESHOOTING
DIESEL FUEL
13A-100
STEP 6. Check harness between A-135 (terminal
No. 2) air flow sensor connector and C-105
(terminal No. 62) engine-ECU connector.
• Check output line for short circuit.
Q: Is the check result normal?
YES :
Go to Step 7 .
NO :
Repair the damaged harness wire.
STEP 7. M.U.T.-III data list
• Item 43: Intake air temperature sensor No. 1
OK: At ambient temperature (atmospheric
temperature) or equivalent.
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 the engine-ECU. When the engine-
ECU is replaced, write the chassis number
(Refer to GROUP 00
− Precautions Before
Service
− How to Perform Chassis Number
Writing ). After replacing the engine-ECU,
register the injector identification code and
learn fuel injection (Refer to GROUP 00
−
Precautions Before Service
− What The
Common Rail Engine Learns ).
STEP 8. Perform resistance measurement at A-
135 air flow sensor 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 11 .
NO :
Go to Step 9 .
AKA00399
AB
Harness side
connector
A-135 (B)
Connector: A-135
AKA00089
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C-105 (B)
C-105 (B)
<R.H. drive vehicles>
Harness side connector
<L.H. drive vehicles>
Connector: C-105
AB
AKA00399
AB
Harness side
connector
A-135 (B)
Connector: A-135
TROUBLESHOOTING
DIESEL FUEL
13A-101
STEP 9. Connector check: C-105 engine-ECU
connector
Q: Is the check result normal?
YES :
Go to Step 10 .
NO :
Repair or replace the connector.
STEP 10. Check harness between A-135 (terminal
No. 1) air flow sensor connector and C-105
(terminal No. 86) engine-ECU connector.
• Check earthing line for damage.
Q: Is the check result normal?
YES :
Go to Step 7 .
NO :
Repair the damaged harness wire.
AKA00089
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C-105 (B)
C-105 (B)
<R.H. drive vehicles>
Harness side connector
<L.H. drive vehicles>
Connector: C-105
AB
AKA00399
AB
Harness side
connector
A-135 (B)
Connector: A-135
AKA00089
1
2
3
4
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96
C-105 (B)
C-105 (B)
<R.H. drive vehicles>
Harness side connector
<L.H. drive vehicles>
Connector: C-105
AB
TROUBLESHOOTING
DIESEL FUEL
13A-102
STEP 11. Connector check: C-105 engine-ECU
connector
Q: Is the check result normal?
YES :
Go to Step 12 .
NO :
Repair or replace the connector.
STEP 12. Check harness between A-135 (terminal
No. 2) air flow sensor connector and C-105
(terminal No. 62) engine-ECU connector.
• Check output line for damage.
Q: Is the check result normal?
YES :
Go to Step 7 .
NO :
Repair the damaged harness wire.
AKA00089
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91
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95
96
C-105 (B)
C-105 (B)
<R.H. drive vehicles>
Harness side connector
<L.H. drive vehicles>
Connector: C-105
AB
AKA00399
AB
Harness side
connector
A-135 (B)
Connector: A-135
AKA00089
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2
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C-105 (B)
C-105 (B)
<R.H. drive vehicles>
Harness side connector
<L.H. drive vehicles>
Connector: C-105
AB
TROUBLESHOOTING
DIESEL FUEL
13A-103
Code No. P0113: EGR Gas Temperature Sensor Circuit High Input <Euro5>
OPERATION
• A power voltage of 5 V is applied to the EGR gas
temperature sensor output terminal (terminal No.
2) from the engine-ECU (terminal No. 36).
• The power voltage is earthed to the engine-ECU
(terminal No. 30) from the EGR gas temperature
sensor (terminal No. 1).
FUNCTION
• The EGR gas temperature sensor converts the
EGR gas temperature into a voltage and inputs
the voltage signal to the engine-ECU.
• The EGR gas temperature sensor is a kind of
resistor, which has characteristics to reduce its
resistance as the EGR gas temperature rises.
Therefore, the sensor output voltage varies with
the EGR gas temperature, and becomes lower as
the EGR gas temperature rises.
TROUBLE JUDGMENT
Check Conditions
• Battery positive voltage is 8 − 16 V
• 2 seconds later after the ignition switch has been
in "ON" position or the engine has started up.
Judgment Criterion
• The EGR gas temperature sensor output voltage
is 4.96 V or more (the EGR gas temperature is
below
−50°C or equivalent).
PROBABLE CAUSES
• Failed EGR gas temperature sensor
• Open circuit in EGR gas temperature sensor cir-
cuit or loose connector contact
• Failed engine-ECU
AKB00262
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10 1112 13 14 15 16 17 18 19 20 21 22 23 24
25 26
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49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72
43 44 45 46 47 48
73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96
1 2
AB
30
36
EGR gas temperature
sensor
Engine-ECU
1
2
EGR Gas Temperature Sensor Circuit
B-P
L-R
A-157
C-105
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 SI: Silver
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