Mitsubishi L200. Manual — part 114

TROUBLESHOOTING

DIESEL FUEL

13A-252

STEP 4. Check harness between C-103 (terminal
No. 114) engine-ECU connector and B-01
(terminal No. 3) Vehicle speed sensor connector.

NOTE: Before checking harness, check intermediate
connectors C-30, C-35 <R. H. drive vehicles>, C-53
<L. H. drive vehicles> and C-127, and repair if nec-
essary.

• Check output line for open circuit and damage.

Q: Is the check result normal?

YES :

Go to Step 5 .

NO :

Repair the damaged harness wire.

STEP 5. M.U.T.-III diagnosis code

• Reconfirmation of diagnosis code.

Q: Is the diagnosis code set?

YES :

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 ). After
registering the injector identification code,
the vehicle equipped with the DPF carries
out the forcible DPF regeneration. (Refer to
GROUP 17

− Emission Control − Diesel

Particulate Filter (DPF) System

− Forcible

DPF Regeneration ).

NO :

Intermittent malfunction (Refer to GROUP
00

− How to Use Troubleshooting/

Inspection Service Points

− How to Cope

with Intermittent Malfunctions ).

AKA00090

101

102

103

104

105

106

107

108

109

110

111

112

113

114

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118

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146

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152

153

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155

156

157

158

117

145

116

144

C-103 (B)

C-103 (B)

<R.H. drive vehicles>

Harness side connector

<L.H. drive vehicles>

Connector: C-103

AB

AK503653

1

2

3

<2WD>

<4WD>

B-01 (B)

B-01 (B)

Connector: B-01

AB

Harness side
connector

TROUBLESHOOTING

DIESEL FUEL

13A-253

Code No. P0513: Immobilizer Malfunction

FUNCTION

• Engine-ECU sends or receives the control sig-

nals to or from ETACS-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 check result of the ETACS-ECU is not suita-

ble for that of the engine-ECU.

PROBABLE CAUSES

• Open/short circuit in immobilizer system circuit or

loose connector contact

• Failed ETACS-ECU

• Failed engine-ECU

DIAGNOSIS PROCEDURE

STEP 1. M.U.T.-III other system diagnosis code.

• Confirm whether the diagnosis codes are output

from ETACS-ECU.

Q: Is the diagnosis code output?

YES :

Perform the troubleshooting of immobilizer

system (Refer to GROUP 54A

− Immobilizer

System

− Check Chart for Diagnosis Code ).

NO :

If diagnosis code P0513 output again after
the MPI diagnosis code has been erased,
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 ). After
registering the injector identification code,
the vehicle equipped with the DPF carries
out the forcible DPF regeneration. (Refer to
GROUP 17

− Emission Control − Diesel

Particulate Filter (DPF) System

− Forcible

DPF Regeneration ).

TROUBLESHOOTING

DIESEL FUEL

13A-254

Code No. P0515: Battery Temperature Sensor System <Euro5>

OPERATION

• A power voltage of 5 V is applied to the battery

temperature sensor output terminal (terminal No.
2) from the engine-ECU (terminal No. 39).

• The power voltage is earthed to the engine-ECU

(terminal No. 155) from the battery temperature
sensor (terminal No. 3).

FUNCTION

• The battery temperature sensor converts the bat-

tery temperature into a voltage and inputs the sig-
nal to the engine-ECU.

• In response to the signal, the engine-ECU con-

trols charging and discharging.

• The battery temperature sensor is a kind of resis-

tor, which has characteristics to reduce its resist-
ance as the battery temperature rises. Therefore,
the sensor output voltage varies with the battery
temperature, and becomes lower as the battery
temperature rises.

TROUBLE JUDGMENT

Check Condition

• 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 battery temperature sensor output voltage is

more than 4.88 V.

or

AKB00273

1

2

3

4

5 6 7 8 9

10 1112 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

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

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

2

4

1

3

155

39

Battery temperature
sensor (integrated in
battery current sensor)

3

2

5 V

Battery Temperature Sensor Circuit

A-152

C-103

C-105

Engine-ECU

BR-B

GR-L

AB

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

TROUBLESHOOTING

DIESEL FUEL

13A-255

• The battery temperature sensor output voltage is

less than 0.99 V.

PROBABLE CAUSES

• Failed battery temperature sensor

• Open/short circuit or harness damage in battery

temperature sensor circuit or loose connector
contact

• Failed engine-ECU

DIAGNOSIS PROCEDURE

STEP 1. M.U.T.-III data list

• Item No. 402: Battery temperature sensor

OK: At ambient temperature (atmospheric
temperature) of battery temperature sensor,
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 :

Go to Step 2 .

STEP 2. Connector check: A-152 battery current
sensor connector

Q: Is the check result normal?

YES :

Go to Step 3 .

NO :

Repair or replace the connector.

STEP 3. Check battery temperature sensor itself.

• Check battery temperature sensor itself (Refer to

GROUP 54A

− Battery − Inspection − Battery

Current Sensor Check ).

Q: Is the check result normal?

YES :

Go to Step 4 .

NO :

Replace the battery current sensor.

STEP 4. Perform voltage measurement at A-152
battery current sensor connector.

• Disconnect connector and measure at harness

side.

• Ignition switch: ON

• Voltage between terminal No. 2 and earth.

OK: 4.5

− 4.9 V

Q: Is the check result normal?

YES :

Go to Step 8 .

NO :

Go to Step 5 .

STEP 5. Connector check: C-105 engine-ECU
connector

Q: Is the check result normal?

YES :

Go to Step 6 .

NO :

Repair or replace the connector.

AKB00274

1

3

2

4

A-152 (GR)

Harness side
connector

Connector: A-152

AB

AKB00274

1

3

2

4

A-152 (GR)

Harness side
connector

Connector: A-152

AB

AKA00089

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2

3

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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