Page 157 of 204
13B-157
AFTER REPAIRCarry out a road test followed by a check with the diagnostic tool.
V1 MR-376-X76-13B000$150.mif
DIESEL INJECTION
Fault finding – Fault Finding Chart13B
DCM 1.2 Injection
Program no.: 4C
Vdiag No.: 08
ALP3
CONTINUED 2
Check the low pressure circuit by running TEST 1 Low pressure circuit check.
Visually check that there are no leakages on the high pressure circuit by running TEST 7 High pressure circuit
sealing check.
Check the high pressure system by running TEST 6 High pressure system check.
Check the condition of the computer connections (for bent pins, signs of oxidation, silicone, etc.) and check that
the computer connectors lock correctly.
Contact the Techline if the customer complaint is still present.
B
Page 158 of 204

13B-158
AFTER REPAIRCarry out a road test followed by a check with the diagnostic tool.
V1 MR-376-X76-13B000$150.mif
DIESEL INJECTION
Fault finding – Fault Finding Chart13B
DCM 1.2 Injection
Program no.: 4C
Vdiag No.: 08
ALP4 Starting difficult with warm engine
NOTESOnly address this customer complaint after a complete check with the diagnostic
tool.
Check that the tank has been filled correctly.
Check the air inlet circuit by running TEST 5 Inlet circuit check.
Is the compression in order? Carry out the necessary repairs.
Is the catalytic converter clogged or damaged?Replace the catalytic converter (see
MR 388 (Logan/Sandero), MR 451
(Duster), MR 423 (Thalia 2/Symbol 2) or
MR 374 (Kangoo VLL), Mechanical,
19B, Exhaust, Catalytic converter:
Removal - Refitting).
Using the diagnostic tool, check that the injector codes (C2I) are correctly entered on the identification screen. If
not, configure the correct injector codes using command SC002 Enter injector codes
Visually check the condition of the engine wiring harness.
Check the low pressure circuit by running TEST 1 Low pressure circuit check.
NO
YES
YES
NO
A
DCM1.2_V08_ALP04
Page 159 of 204

13B-159
AFTER REPAIRCarry out a road test followed by a check with the diagnostic tool.
V1 MR-376-X76-13B000$150.mif
DIESEL INJECTION
Fault finding – Fault Finding Chart13B
DCM 1.2 Injection
Program no.: 4C
Vdiag No.: 08
ALP4
CONTINUED
Control the injectors using commands:
– AC005 Cylinder 1 injector,
– AC006 Cylinder 2 injector,
– AC007 Cylinder 3 injector,
– AC008 Cylinder 4 injector.
Can you hear the valve moving when you are 1 metre
from the vehicle?Run TEST 9 Diesel filter check.
If the test is correct, only replace the faulty
injector(s) (see MR 388 (Logan/Sandero),
MR 451 (Duster), MR 423 (Thalia 2/Symbol
2) or MR 374 (Kangoo VLL), Mechanical,
13B, Diesel injection, Diesel injector:
Removal - Refitting).
Check the high pressure system by running TEST 6 High pressure system check.
Check the condition of the computer connections (for bent pins, signs of oxidation, silicone, etc.) and check that
the computer connectors lock correctly.
Contact the Techline if the customer complaint is still present.
A
NO
YES
Page 160 of 204
13B-160
AFTER REPAIRCarry out a road test followed by a check with the diagnostic tool.
V1 MR-376-X76-13B000$150.mif
DIESEL INJECTION
Fault finding – Fault Finding Chart13B
DCM 1.2 Injection
Program no.: 4C
Vdiag No.: 08
ALP5 Rough idle (pumping)
NOTESOnly address this customer complaint after a complete check with the diagnostic
tool.
Check that the tank is correctly filled and that the appropriate fuel is used.
Apply test 13 Diesel fuel conformity check.
Check the low pressure circuit by running TEST 1 Low pressure circuit check.
Using the diagnostic tool, check that the injector codes (C2I) are correctly entered on the identification screen. If
not, configure the correct injector codes using command SC002 Enter injector codes
Visually check the condition of the engine wiring harness.
Visually check that there are no leakages on the high pressure circuit by running TEST 7 High pressure circuit
sealing check.
A
DCM1.2_V08_ALP05
Page 161 of 204
13B-161
AFTER REPAIRCarry out a road test followed by a check with the diagnostic tool.
V1 MR-376-X76-13B000$150.mif
DIESEL INJECTION
Fault finding – Fault Finding Chart13B
DCM 1.2 Injection
Program no.: 4C
Vdiag No.: 08
ALP5
CONTINUED
Is the compression in order? Carry out the necessary repairs.
Check the electrical conformity of the heater plugs (the resistance of the heater plug must be less than 2 ).
Check the high pressure system by running test 6 High pressure system check.
Contact the Techline if the customer complaint is still present.
A
NO
YES
Page 162 of 204
13B-162
AFTER REPAIRCarry out a road test followed by a check with the diagnostic tool.
V1 MR-376-X76-13B000$150.mif
DIESEL INJECTION
Fault finding – Fault Finding Chart13B
DCM 1.2 Injection
Program no.: 4C
Vdiag No.: 08
ALP6 Idling speed too high or too low
NOTESOnly address this customer complaint after a complete check with the diagnostic
tool.
Using the diagnostic tool, check that the injector codes (C2I) are correctly entered on the identification screen. If
not, configure the correct injector codes using command SC002 Enter injector codes
Check the electrical circuit by running TEST 2 Electrical circuit check.
Is the clutch clearance set correctly? Carry out the necessary repairs.
Check the condition of the computer connections (for bent pins, signs of oxidation, silicone, etc.) and check that
the computer connectors lock correctly.
Contact the Techline if the customer complaint is still present.
NO
YES
DCM1.2_V08_ALP06
Page 163 of 204

13B-163
AFTER REPAIRCarry out a road test followed by a check with the diagnostic tool.
V1 MR-376-X76-13B000$150.mif
DIESEL INJECTION
Fault finding – Fault Finding Chart13B
DCM 1.2 Injection
Program no.: 4C
Vdiag No.: 08
ALP7 Erratic acceleration/deceleration and engine racing
NOTESOnly address this customer complaint after a complete check with the diagnostic
tool.
Check that the engine has not sucked up its oil (engine racing).
Check the air inlet circuit by running TEST 5 Inlet circuit check.
Using the diagnostic tool, check that the injector codes (C2I) are correctly entered on the identification screen. If
not, configure the correct injector codes using command SC002 Enter injector codes
Visually check the condition of the engine wiring harness.
Check the injectors by running TEST 3 Injector check.
Check the condition of the computer connections (for bent pins, signs of oxidation, silicone, etc.) and check that
the computer connectors lock correctly.
Contact the Techline if the customer complaint is still present.
DCM1.2_V08_ALP07
Page 164 of 204

13B-164
AFTER REPAIRCarry out a road test followed by a check with the diagnostic tool.
V1 MR-376-X76-13B000$150.mif
DIESEL INJECTION
Fault finding – Fault Finding Chart13B
DCM 1.2 Injection
Program no.: 4C
Vdiag No.: 08
ALP8 Acceleration gap
NOTESOnly address this customer complaint after a complete check with the diagnostic
tool.
Check the air inlet circuit by running TEST 5 Inlet circuit check.
Is the compression in order? Carry out the necessary repairs.
Using the diagnostic tool, check that the injector codes (C2I) are correctly entered on the identification screen. If
not, configure the correct injector codes using command SC002 Enter injector codes
Check that the turbocharger is working properly.
Run test 11 Air line at the turbocharger.
Run test 10 Turbocharger solenoid valve check.
Run test 12 Turbocharger.
Is the turbocharger in order?Carry out the necessary repairs.
Check the low pressure circuit by running TEST 1 Low pressure circuit check.
NO
YES
NO
YES
A
DCM1.2_V08_ALP08