2013 RENAULT KANGOO Diesel DCM 1.2 Injection Workshop Manual

13B-185
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
ALP18
CONTINUED
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.
Visually check the condition of the engine wiring harness.
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 low pressure circuit by running TEST 1 Low pressure circuit check.
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.
A
NO
YES

13B-186V1 MR-376-X76-13B000$160.mif
DIESEL INJECTION
Fault finding – Tests13B
DCM 1.2 Injection
Program no.: 4C
Vdiag No.: 08
Some specific checks are grouped together into tests and are performed as required in the various fault finding
charts (ALPs) or when interpreting faults.
*Technical Note 3419: Fault finding on the turbocharger for petrol and diesel engines
NOTESOnly consult these tests when dealing with a fault finding chart (ALP) or
Interpretation of faults
Low pressure circuit checkTEST 1
Electrical circuit checkTEST 2
Injector checkTEST 3
Inlet circuit checkTEST 5
High pressure system check TEST 6
High pressure circuit sealing check TEST 7
Injector return flowTEST 8
Diesel filter checkTEST 9
Turbocharger solenoid valve checkTEST 10:
Apply TEST 4
of Technical
Note 3419
Turbocharger air chainTEST 11
TurbochargerTEST 12:
Apply TEST 7
of Technical
Note 3419*
Diesel fuel conformity check TEST 13
DIESEL INJECTION
Fault finding – Tests

13B-187V1 MR-376-X76-13B000$160.mif
DIESEL INJECTION
Fault finding – Tests13B
DCM 1.2 Injection
Program no.: 4C
Vdiag No.: 08
TEST 1 Low pressure circuit check
Check the conformity of the low pressure circuit
connections
Are the low pressure circuit connections correct? Carry out the necessary repairs.
Check the condition of the priming bulb, and that it is
working properly.
Look for leaks at the unions.
Are there leaks from the hoses and unions? Carry out the necessary repairs
Check that there are no air bubbles in the diesel fuel. Bleed the low-pressure circuit.
Place a container under the filter.
– Disconnect the return hose from the filter
and plug the filter.
– Pump using the priming bulb until there is no
air left.
– Reconnect the return hose immediately. Check if there are air bubbles in the low pressure
circuit.
Low pressure circuit correct.
NO
YES
YES
NO
YES
NO
DCM1.2_V08_TEST01

13B-188V1 MR-376-X76-13B000$160.mif
DIESEL INJECTION
Fault finding – Tests13B
DCM 1.2 Injection
Program no.: 4C
Vdiag No.: 08
TEST 2 Electrical circuit check
Check the battery charge and that the alternator is
working properly (see Technical Note 6014A
(Renault) or Technical Note 9859A (Dacia),
Checking the charging circuit).
Is the charging circuit in good order? Carry out the necessary repairs
Check the fuses (see MR 388 (Logan/Sandero),
MR 451 (Duster), MR 423 (Thalia 2/Symbol 2) or
MR 374 (Kangoo VLL), Mechanical, 81C, Fuses,
Fuses: List and location of components).
Are the fuses correct? Carry out the necessary repairs
Check that the injection locking relay is operating
correctly.
Is the injection locking relay working properly? Carry out the necessary repairs
Check the engine earths (see Wiring Diagrams
Technical Note for the vehicle).
Are the engine earths correct? Carry out the necessary repairs
The electrical circuit is in good order.
NO
YES
NO
YES
NO
YES
NO
YES
DCM1.2_V08_TEST02

13B-189V1 MR-376-X76-13B000$160.mif
DIESEL INJECTION
Fault finding – Tests13B
DCM 1.2 Injection
Program no.: 4C
Vdiag No.: 08
TEST 3 Injector check
Conduct a visual inspection around the injectors.
Is there diesel fuel around the injectors?Locate the source of the leak and carry out the
necessary repairs.
Control the injectors using the 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?Check the insulation and the continuity of the
electrical circuit.
Run TEST 9 Diesel filter check.
If TEST 9 is correct, replace the faulty
injector(s) (see MR 388 (Logan/Sandero) or MR
451 (Duster), MR 423 (Thalia 2/Symbol 2) or MR
374 (Kangoo VLL), Mechanical, 13B, Diesel
injection, Diesel injector: Removal - Refitting).
End of test 3.YES
NO
NO
YES
DCM1.2_V08_TEST03

13B-190V1 MR-376-X76-13B000$160.mif
DIESEL INJECTION
Fault finding – Tests13B
DCM 1.2 Injection
Program no.: 4C
Vdiag No.: 08
TEST 5 Inlet circuit check
Check for air leaking in or out.
Is air leaking in or out?
Carry out the necessary repairs
Check the condition of the air filter.
Air filter in order?Replace the air filter (see MR 388 (Logan/
Sandero), MR 423 (Thalia 2/Symbol 2), MR
451 (Duster) or MR 374 (Kangoo VLL),
Mechanical, 12A, Fuel mixture, Air filter:
Removal - Refitting).
Check that the inlet manifold is not obstructed
(clogged).
Is the inlet manifold obstructed?Clean the inlet manifold.
Air system in good order.
YES
NO
NO
YES
YES
NO
DCM1.2_V08_TEST05

13B-191V1 MR-376-X76-13B000$160.mif
DIESEL INJECTION
Fault finding – Tests13B
DCM 1.2 Injection
Program no.: 4C
Vdiag No.: 08
TEST 6 High pressure system check
NOTESSpecial note:
Certain faults make it impossible to carry out this test - deal with these first.
WARNING
Running the starter motor for more than 5 seconds is dangerous and serves no useful
purpose.
Preliminary Checks:
– Check for the presence of fuel
– Check that there is no air in the low pressure circuit. Apply TEST 1 Low pressure circuit check.
– Ensure that the correct fuel is being used. Apply TEST 13 Diesel fuel conformity check.
The pump's capacity to produce high pressure can be checked by the following procedure:
–With the ignition off, disconnect the low pressure actuator from the pump (IMV brown connector) and
connect a test IMV or the MOT adapter. 1711 adapter.
– Electrically disconnect the four injectors.
– Switch on the ignition, connect the diagnostic tool and re-establish dialogue with the injection system.
– Go to the Main computer statuses and parameters screen.
– Run the test cold, PR064 "Coolant temperature" < 30 °C or equal to ambient temperature.
–Activate the starter for 5 seconds.
– Read the maximum rail pressure value PR038 Rail pressure during the test on the diagnostic tool.
PR038 > 1050 bar?
A
NO
B
YES
DCM1.2_V08_TEST06

13B-192V1 MR-376-X76-13B000$160.mif
DIESEL INJECTION
Fault finding – Tests13B
DCM 1.2 Injection
Program no.: 4C
Vdiag No.: 08
IMV = fuel flow actuator
TEST 6
CONTINUED
– Switch off the ignition, reconnect the electrical
connections to the four injectors and the low-pressure
actuator.
– Switch on the ignition again, and clear the injection
faults using the diagnostic tool.
– Check if there is no fuel leak in the high pressure
circuit. Run TEST 7 High pressure circuit sealing
check
– Check the conformity of the diesel filter. Run TEST 9
Diesel fuel filter check.
– Carry out fault finding on the injectors by checking the
return flow volume of the four injectors, run TEST 8
Injector return flow.
Is TEST 8 OK?The pump can supply the operating pressure.
Switch off the ignition, reconnect the electrical
connections
to the four injectors and the low pressure
actuator. Switch on the ignition again, and clear
the injection faults using the diagnostic tool.
– Check that there is no fuel leak in the high
pressure circuit, apply TEST 7 High pressure
circuit sealing check.
– Carry out fault finding on the injectors by
checking the return flow volume of the four
injectors, run TEST 8 Injector return flow.
If TEST 8 is correct, the high pressure fuel circuit
is correct.
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).Replace the high pressure pump (see MR 388 (Logan/Sandero),
MR 451 (Duster), MR 423 (Thalia 2/Symbol 2) or MR 374
(Kangoo VLL), Mechanical, 13B, Diesel injection, High
pressure pump: Removal - Refitting).
AB
YESNO