Mitsubishi L200. Manual - part 57

TROUBLESHOOTING

DIESEL FUEL

13A-24

NOTE: *:When the diagnosis codes relating to the CAN communication error are output, make sure of the 
vehicle equipment. When the vehicle is not equipped with the system the engine-ECU communicates to, the 
diagnosis code is always output. This is not abnormal.

P2149

Injector common 2 (cylinder No. 2 and No. 3) circuit open <Euro5>

P.13A-392

P2149

Injector common 2 (cylinder No. 2 and No. 3) circuit open <Except 
Euro5>

P.13A-396

P2150

Injector common 2 circuit earth short <Euro5>

P.13A-399

P2151

Injector common 2 circuit battery short <Euro5>

P.13A-403

P2228

Barometric pressure sensor circuit low input

P.13A-406

P2229

Barometric pressure sensor circuit high input

P.13A-407

P2413

EGR system performance

P.13A-408

P2454

Exhaust differential pressure sensor circuit low input <Euro5>

P.13A-411

P2455

Exhaust differential pressure sensor circuit high input <Euro5>

P.13A-417

P252F

Engine oil level malfunction <Euro5>

P.13A-419

U1073

Bus off

P.13A-420

U1101*

A/T-ECU time-out <A/T>

P.13A-421

U1102*

ASTC-ECU time-out <Except vehicles for Morocco>

P.13A-422

U1109*

ETACS-ECU time-out

P.13A-424

U1110*

A/C-ECU time-out <Euro5>

P.13A-425

U1117*

ETACS-ECU (Immobilizer- ECU) time-out

P.13A-427

U1190

The network system diagnosis code output permitted signal can not 
be received

P.13A-428

Diagnosis 
code No.

Diagnosis item

Reference page

TROUBLESHOOTING

DIESEL FUEL

13A-25

DIAGNOSIS CODE PROCEDURES

Code No. P0003: Suction Control Valve Open <Euro5>

OPERATION

• The voltage is applied from the engine-ECU (ter-

minal No. 131) to the suction control valve (termi-
nal No. 1) via the power transistor in the engine-
ECU.

• The voltage is earthed to the engine-ECU (termi-

nal No. 146) from the suction control valve (termi-
nal No. 2).

FUNCTION

• The engine-ECU performs duty control over the 

suction control valve.

• The engine-ECU checks whether the amount of 

current for driving duty is adequate.

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.

• The supply pump and injector are being normally 

controlled.

• The fuel injection rate is 4 mm

3

/st or more.

Judgment Criterion

• When the driving duty ratio of the suction control 

valve is higher than the specified value, the driv-
ing current is lower than the specified value.

PROBABLE CAUSES

• Failed suction control valve

• Open/short circuit or harness damage in suction 

control valve circuit or loose connector contact

• Failed engine-ECU

AKA00106

1

2

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

Suction Control Valve Circuit

Suction
control
valve

A-47

(MU802768)

C-103

SB

P

2

146

131

1

Engine-ECU

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

AB

TROUBLESHOOTING

DIESEL FUEL

13A-26

DIAGNOSIS PROCEDURE

STEP 1. Connector check: A-47 suction control 
valve connector

Q: Is the check result normal?

YES : 

Go to Step 2 .

NO : 

Repair or replace the connector.

STEP 2. Check suction control valve itself.

• Check suction control valve itself (Refer to 

P.13A-

596

).

Q: Is the check result normal?

YES : 

Go to Step 3 .

NO : 

Replace the suction control valve.

STEP 3. Connector check: C-103 engine-ECU 
connector

Q: Is the check result normal?

YES : 

Go to Step 4 .

NO : 

Repair or replace the connector.

AK503644

2

1

A-47 (GR)

Harness side 
connector

AB

Connector: A-47

AKA00090

101

102

103

104

105

106

107

108

109

110

111

112

113

114

115

118

119

120

121

122

123

124

125

126

127

128

129

130

131

132

133

134

135

136

137

138

139

140

141

142

143

146

147

148

149

150

151

152

153

154

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

TROUBLESHOOTING

DIESEL FUEL

13A-27

STEP 4. Check harness between C-103 (terminal 
No. 131) engine-ECU connector and A-47 
(terminal No. 1) suction control valve connector.

• Check power supply line for open/short circuit 

and damage.

Q: Is the check result normal?

YES : 

Go to Step 5 . 

NO : 

Repair the damaged harness wire.

STEP 5. Check harness between C-103 (terminal 
No. 146) engine-ECU connector and A-47 
(terminal No. 2) suction control valve connector.

• Check earthing line for open/short circuit and 

damage.

Q: Is the check result normal?

YES : 

Go to Step 6 .

NO : 

Repair the damaged harness wire.

STEP 6. M.U.T.-III diagnosis code

• Reconfirmation of diagnosis code.

Q: Is the diagnosis code set?

AKA00090

101

102

103

104

105

106

107

108

109

110

111

112

113

114

115

118

119

120

121

122

123

124

125

126

127

128

129

130

131

132

133

134

135

136

137

138

139

140

141

142

143

146

147

148

149

150

151

152

153

154

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

AK503644

2

1

A-47 (GR)

Harness side 
connector

AB

Connector: A-47

AKA00090

101

102

103

104

105

106

107

108

109

110

111

112

113

114

115

118

119

120

121

122

123

124

125

126

127

128

129

130

131

132

133

134

135

136

137

138

139

140

141

142

143

146

147

148

149

150

151

152

153

154

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

AK503644

2

1

A-47 (GR)

Harness side 
connector

AB

Connector: A-47