heater RENAULT KANGOO 2013 X61 / 2.G Diesel DCM 1.2 Injection Workshop Manual

13B-13V1 MR-376-X76-13B000$030.mif
DIESEL INJECTION
Fault finding – System operation13B
DCM 1.2 Injection
Program no.: 4C
Vdiag No.: 08
Function: Air flow management
EGR valve control
The EGR system (Exhaust gas recirculation) comprises a proportional EGR valve, with a built-in valve position
feedback potentiometer. The EGR valve position is controlled by the potentiometer in a closed loop and/or by
changes in the estimated air flow.
Special feature of the K9K796 Euro 2 engine (Indonesia): The EGR solenoid valve is present on the vehicle, but not
used. It always remains closed. It must not be replaced on this vehicle (unless there is a mechanical fault).
Calculating the air flow
K9K 790 and 794 engines are not fitted with an air flowmeter. Instead, the amount of fresh inlet air is evaluated
based on the values supplied by the surrounding systems.
The (theoretical) air load is calculated using a model with various calculation parameters, which are:
– the inlet air temperature measured by a sensor located after the turbocharger and/or after the exchanger (if fitted),
– the turbocharging pressure,
– the atmospheric pressure (external air),
– the EGR valve position,
– the fuel flow,
– the engine speed.
The atmospheric pressure sensor is optional. If fitted, it sends back a signal relating to the atmospheric pressure to
an analogue port on the micro-controller. If not, atmospheric pressure is recovered based on the turbocharger
pressure and the engine field.
For K9K 792 and 796 engines, the flow of fresh air entering the engine is measured by a hot-wire ratiometric sensor.
This flowmeter is used to manage the amount of exhaust gas to be recirculated to ensure optimum recirculation
rates. A fresh air temperature sensor is integrated into the flowmeter. Air flow measurement allows closed-loop
control via the EGR valve.
Turbocharger control
K9K 796 engine:
The turbocharging system is made up of a solenoid valve which is used to control the wastegate to adjust the
absolute pressure of the inlet circuit.
K9K 790, 792, 794 engines:
The turbocharger system is controlled by the inlet pressure and does not need to be controlled by the computer.
Pre-postheating actuation
Pre-postheating actuation consists of controlling the heater plugs and the preheating warning light on the instrument
panel. The heater plugs are activated by a preheating unit (controlled by the injection computer), and the power is
supplied by the battery. After the ignition is switched on a preheating delay is activated. The indicator light comes on
for the activation period which is dependent on the battery voltage, atmospheric pressure and coolant temperature.
If the temperature is below a certain threshold, a postheating function can be used to improve the combustion
stability, and consequently engine operation (reducing unburnt particles and pollutant emissions).

13B-15V1 MR-376-X76-13B000$030.mif
DIESEL INJECTION
Fault finding – System operation13B
DCM 1.2 Injection
Program no.: 4C
Vdiag No.: 08
Instrument panel display
The computer manages the data display on the instrument panel relating to engine operation.
There are six functions concerned:
–the On board diagnostics MIL (Malfunction Indicator Lamp),
– pre-postheating,
– the coolant temperature,
– engine problems; Level 1 (non-critical fault) and Level 2 (emergency stop).
– detection of water in the fuel (depending on instrument panel).
These six functions are represented using four indicator lights.
Pre-postheating and electronic fault warning light (Level 1)
This light is used to indicate that the heater plugs are preheating and as a system fault indicator light:
– Continuously illuminated during + after ignition feed: indicates preheating of the heater plugs.
– Flashing after preheating and an automatic 3-second stop indicates a Level 1 fault (the function is not working
optimally and safety levels are reduced). The user must carry out repairs as soon as possible).
Engine coolant temperature warning light (Level 2)
This indicator light is used both as an in-operation indicator light and as a system fault warning light. It illuminates for
3 seconds when the power is switched on (automatic test procedure).
Continuously illuminated during + after ignition feed: indicates engine overheating or a Level 2 fault.
OBD warning light
This warning light is used to alert the driver of any injection faults that could lead to excessive pollution, or if the OBD
system has been deactivated.
The injection computer requests illumination of the OBD warning light for a present fault only after three successive
driving cycles.
The 3 second visual inspection when the ignition is switched on (automatic test procedure managed by the
instrument panel) is carried out by the injection computer.

13B-22V1 MR-376-X76-13B000$060.mif
13B
DCM 1.2 Injection
Program no.: 4C
Vdiag No.: 08
Tool fault Associated DTC Diagnostic tool name
DF001 0115Coolant temperature sensor circuit
DF002 0070Air temperature sensor circuit
DF003 2226Atmospheric pressure sensor circuit
DF005 0335Engine speed sensor circuit
DF007 0190Rail pressure sensor circuit
DF008 0225Pedal potentiometer circuit gang 1
DF009 2120Pedal potentiometer circuit gang 2
DF010 0409EGR position sensor circuit
DF014 0500Vehicle speed information circuit
DF015 0685Main relay control circuit
DF016 0403EGR control circuit
DF017 0382Preheating unit control circuit
DF018 0480Low-speed fan unit control circuit
DF019 0481High-speed fan unit control circuit
DF021 0381Preheating warning light circuit
DF022 0650OBD warning light circuit
DF024 0231Low pressure actuator control circuit
DF025 0380Preheater unit diagnostic connection
DF026 0201Cylinder 1 injector circuit control
DF027 0202Cylinder 2 injector circuit control
DF028 0203Cylinder 3 injector circuit control
DF029 0204Cylinder 4 injector circuit control
DF032 1641Thermoplunger 1 relay control circuit
DF033 1642Thermoplunger 2 relay control circuit
DF034 1643Thermoplunger 3 relay control circuit
DF037 0513Immobiliser
DF038 0606Computer
DF039 0110Inlet air temperature sensor circuit
DF047 0560Computer feed voltage
DF049 0530Refrigerant sensor circuit
DF050 0571Brake switch circuit
DIESEL INJECTION
Fault finding – Fault summary table

13B-45
AFTER REPAIRDeal with any faults declared by the diagnostic tool.
Clear the computer memory.
Carry out a road test followed by another check with the diagnostic tool.
V1 MR-376-X76-13B000$071.mif
DIESEL INJECTION
Fault finding – Interpretation of faults13B
DCM 1.2 Injection
Program no.: 4C
Vdiag No.: 08
DF017
PRESENTPRE-POSTHEATING UNIT CONTROL CIRCUITCO.0: Open circuit or short circuit to earth
CC.1: Short circuit to + 12 V
NOTESSpecial notes:
If fault DF017 is present: starting is difficult (even impossible when cold).
If CO.0 is present: the heater plugs are permanently switched on with a risk of engine
damage or even failure.
Use the Wiring Diagrams Technical Note for Logan, Sandero, Duster, Thalia 2/
Symbol 2 or Kangoo VLL.
Check the connection and condition of the preheating unit connector, component code 257.
Check the connection and condition of the injection computer connector, component code 120.
If the connector(s) are faulty and if there is a repair procedure (see Technical Note 6015A, Repairing electrical
wiring, Wiring: Precautions for repair), repair the connector, otherwise replace the wiring.
Check the insulation, continuity and the absence of interference resistance on the following connections:
●3FY between components 120 and 257,
●3FF between components 120 and 257.
If the connection(s) are faulty and if there is a repair procedure (see Technical Note 6015A (Renault) or
Technical Note 9804A (Dacia), Repairing electrical wiring, Wiring: Precautions for repair), repair the wiring,
otherwise replace it.
If the fault is still present, contact the Techline.
DCM1.2_V08_DF017P

13B-53
AFTER REPAIRDeal with any faults declared by the diagnostic tool.
Clear the computer memory.
Carry out a road test followed by another check with the diagnostic tool.
V1 MR-376-X76-13B000$071.mif
DIESEL INJECTION
Fault finding – Interpretation of faults13B
DCM 1.2 Injection
Program no.: 4C
Vdiag No.: 08
DF025
PRESENT
OR
STOREDPRE-POSTHEATING UNIT DIAGNOSTIC LINE
CO: Open circuit.
NOTESSpecial notes:
Use the Wiring Diagrams Technical Note for Logan, Sandero, Duster, Thalia 2/
Symbol 2 or Kangoo VLL.
Check power supply fuse F1 (70 A) or F6 (for Kangoo VLL) of the preheating unit, component code 257 in the
engine compartment (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).
Check the connection and condition of the heater plug connectors, component codes 680, 681, 682, and 683.
If the connectors are faulty and if there is a repair procedure (see Technical Note 6015A (Renault) or Technical
Note 9804A (Dacia), Electrical wiring repair, Wiring: Precautions for repair), repair the connector, otherwise
replace the wiring.
Measure the resistance of each heater plug.
The resistance must be less than 2 .
Replace the faulty plug(s) (see MR 388 (Logan/Sandero), MR 451 (Duster), MR 423 (Thalia 2/Symbol 2) or MR
374 (Kangoo VLL), Mechanical, 13C, Preheating, Heater plugs: Removal – Refitting).
Check the connection and condition of the preheating unit connector, component code 257.
If the connector is faulty and if there is a repair procedure (see Technical Note 6015A (Renault) or Technical
Note 9804A (Dacia), Electrical wiring repair, Wiring: Precautions for repair), repair the connector, otherwise
replace the wiring.
Check the connection and condition of the injection computer connector, component code 120.
If the connector is faulty and if there is a repair procedure (see Technical Note 6015A (Renault) or Technical
Note 9804A (Dacia), Electrical wiring repair, Wiring: Precautions for repair), repair the connector, otherwise
replace the wiring.
Check the insulation, continuity and the absence of interference resistance on the following connections:
●3FY between components120 and 257,
●3FF between components120 and 257.
If the connection(s) are faulty and if there is a repair procedure (see Technical Note 6015A (Renault) or
Technical Note 9804A (Dacia), Repairing electrical wiring, Wiring: Precautions for repair), repair the wiring,
otherwise replace it.
If the fault is still present, contact the Techline.
DCM1.2_V08_DF025

13B-62
AFTER REPAIRDeal with any faults declared by the diagnostic tool.
Clear the computer memory.
Carry out a road test followed by another check with the diagnostic tool.
V1 MR-376-X76-13B000$071.mif
DIESEL INJECTION
Fault finding – Interpretation of faults13B
DCM 1.2 Injection
Program no.: 4C
Vdiag No.: 08
DF032
PRESENT
OR
STOREDTHERMOPLUNGER 1 RELAY CONTROL CIRCUIT
CC.1: Short circuit to + 12 V
CO.0: Open circuit or short circuit to earth
NOTESSpecial notes:
Use the Wiring Diagrams Technical Note for Logan, Sandero, Duster, Thalia 2/
Symbol 2 or Kangoo VLL.
Check the connection and condition of the additional heater 1 relay connector, component code 1067.
Check the connection and condition of the injection computer connector, component code 120.
If the connectors are faulty and if there is a repair procedure (see Technical Note 6015A (Renault) or Technical
Note 9804A (Dacia), Electrical wiring repair, Wiring: Precautions for repair), repair the connectors, otherwise
replace the wiring.
Check the insulation, continuity and the absence of interference resistance on the following connection:
●3JA (or 38JU) between components 120 and 1067.
With the ignition on, check for + 12 V on connection 3FB (or 3FB2) of the additional heater 1 relay.
If the connection or connections are faulty and if there is a repair procedure (see Technical Note 6015A (Renault)
or Technical Note 9804A (Dacia), Electrical wiring repair, Wiring: Precautions for repair), repair the wiring,
otherwise replace it.
If the fault is still present, check the relay and replace it if necessary.
If the fault is still present, contact the Techline.
DCM1.2_V08_DF032

13B-63
AFTER REPAIRDeal with any faults declared by the diagnostic tool.
Clear the computer memory.
Carry out a road test followed by another check with the diagnostic tool.
V1 MR-376-X76-13B000$071.mif
DIESEL INJECTION
Fault finding – Interpretation of faults13B
DCM 1.2 Injection
Program no.: 4C
Vdiag No.: 08
DF033
PRESENT
OR
STOREDTHERMOPLUNGER 2 RELAY CONTROL CIRCUIT
CC.1: Short circuit to + 12 V
CO.0: Open circuit or short circuit to earth
NOTESSpecial notes:
Use the Wiring Diagrams Technical Note for Logan, Sandero, Duster, Thalia 2/
Symbol 2 or Kangoo VLL.
Check the connection and condition of the additional heater 2 relay connector, component code 1068.
Check the connection and condition of the injection computer connector, component code 120.
If the connectors are faulty and if there is a repair procedure (see Technical Note 6015A (Renault) or Technical
Note 9804A (Dacia), Electrical wiring repair, Wiring: Precautions for repair), repair the connectors, otherwise
replace the wiring.
Check the insulation, continuity and the absence of interference resistance on the following connection:
●3JAA (or 38JV) between components 120 and 1068.
With the ignition on, check for + 12 V on connection 3FB (or 3FB2) of the additional heater 2 relay.
If the connection or connections are faulty and if there is a repair procedure (see Technical Note 6015A (Renault)
or Technical Note 9804A (Dacia), Electrical wiring repair, Wiring: Precautions for repair), repair the wiring,
otherwise replace it.
If the fault is still present, check the relay and replace it if necessary.
If the fault is still present, contact the Techline.
DCM1.2_V08_DF033

13B-64
AFTER REPAIRDeal with any faults declared by the diagnostic tool.
Clear the computer memory.
Carry out a road test followed by another check with the diagnostic tool.
V1 MR-376-X76-13B000$071.mif
DIESEL INJECTION
Fault finding – Interpretation of faults13B
DCM 1.2 Injection
Program no.: 4C
Vdiag No.: 08
DF034
PRESENT
OR
STOREDTHERMOPLUNGER 3 RELAY CONTROL CIRCUIT
CC.1: Short circuit to + 12 V
CO.0: Open circuit or short circuit to earth
NOTESSpecial notes:
Use the Wiring Diagrams Technical Note for Logan, Sandero, Duster, Thalia 2/
Symbol 2 or Kangoo VLL.
Check the connection and condition of the additional heater relay 3 connector.
Check the connection and condition of the injection computer connector, component code 120.
If the connectors are faulty and if there is a repair procedure (see Technical Note 6015A (Renault) or Technical
Note 9804A (Dacia), Electrical wiring repair, Wiring: Precautions for repair), repair the connectors, otherwise
replace the wiring.
Check the insulation, continuity and the absence of interference resistance on the following connection:
Injection computer, connector C, track D1 Thermoplunger 3
If the connection is faulty and if there is a repair procedure (see Technical Note 6015A (Renault) or Technical
Note 9804A (Dacia), Electrical wiring repair, Wiring: Precautions for repair), repair the wiring, otherwise
replace it.
If the fault is still present, check the relay and replace it if necessary.
If the fault is still present, contact the Techline.
DCM1.2_V08_DF034

13B-145V1 MR-376-X76-13B000$130.mif
13B
DCM 1.2 Injection
Program no.: 4C
Vdiag No.: 08
Tool command Diagnostic tool title Comments
RZ001Fault memoryThis command is used for clearing the computer's stored
faults
RZ002EGR programming adaptivesUse this command when replacing the EGR valve (not
applicable to K9K796 Euro 2).
RZ004Pressure regulation adaptivesUse this command when simultaneously replacing the four
injectors and after replacing/retightening the accelerometer.
It enables you to reset the injector adaptives.
RZ005ProgrammingThis command enables you to reinitialise the entire computer
configuration.
AC001Preheating unitActivating this controls the preheating unit to test the heater
plug supply.
AC002EGR solenoid valveActivating this enables an audible check of the mechanical
operation of the EGR valve (not applicable to K9K796
Euro 2).
AC004Turbocharging solenoid valveActivating this enables an audible check of the operation of
the turbocharging solenoid valve.
AC005Cylinder 1 injectorActivating this enables an audible check of the injector on
cylinder 1.
AC006Cylinder 2 injectorRunning this allows you to you listen to the injector on
cylinder 2 when operating.
AC007Cylinder 3 injectorActivating this enables an audible check of the injector on
cylinder 3.
AC008Cylinder 4 injectorActivating this enables an audible check of the injector on
cylinder 4.
AC010High pressure pumpActivating this lets you listen to the operation of the high-
pressure pump.
AC028Static testActivating this enables fault finding to be run on the EGR,
high pressure pump and water in fuel warning light circuits
DIESEL INJECTION
Fault finding – Command summary table

13B-152
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 The engine will not start
NOTESOnly address this customer complaint after a complete check with the diagnostic
tool.
Check that the fuel tank is correctly filled and that the appropriate fuel is used.
Apply test 13 Diesel fuel conformity check.
Check the levels of engine oil and coolant.
Check the air inlet circuit by running TEST 5 Inlet circuit check.
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).
Check the electrical circuit by running TEST 2 Electrical circuit check.
Check the electrical conformity of the heater plugs (the resistance of the heater plug must be less than 2 ).
YES
NO
A
DCM1.2_V08_ALP02