Page 147 of 204

13B-147V1 MR-376-X76-13B000$130.mif
DIESEL INJECTION
Fault finding – Command summary table13B
DCM 1.2 Injection
Program no.: 4C
Vdiag No.: 08
Tool
commandDiagnostic tool title Comments
AC251 Heating resistor 2 relay.Activating this controls the heating resistor no. 2 relay to test
the heating resistor supply.
AC252 Heating resistor 3 relay.Activating this controls the heating resistor no. 3 relay to test
the heating resistor supply.
AC261 Water in fuel warning lightActivating this actuates the water present in fuel warning
light; this warning light is located on the instrument panel, if
fitted to the vehicle.
SC001 Write saved dataUse this command after replacing or (re)programming the
computer (if the data were saved using command SC003
Save computer data).
SC002 Enter injector codesThis command enables you to manually write the calibration
code marked on the injectors. Run this command after
replacing the injectors.
SC003 Save computer dataThis command saves the computer operating data, C2I
(individual injector correction) parameters and engine
programming adapters. Run this command before replacing
or (re)programming the computer.
Page 153 of 204
13B-153
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
ALP2
CONTINUED 1
Is the timing set correctly? Carry out the necessary repairs.
Visually check the condition of the engine wiring harness.
Does the starter motor operate correctly (minimum engine
speed = 200 rpm)?Carry out the necessary repairs.
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
Is PR038 Rail pressure less than 50 bar under + after
ignition feed?Apply the fault finding procedure for
DF007 Rail pressure sensor
circuit.
A
NO
YES
NO
YES
NO
YES
NO
B
YES
Page 156 of 204
13B-156
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 1
Is the timing set correctly? Carry out the necessary repairs.
Is the compression in order? Carry out the necessary repairs.
Visually check the condition of the engine wiring harness.
Check the electrical circuit by running TEST 2 Electrical 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
A
NO
YES
NO
YES
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 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 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