13B-129V1 MR-376-X76-13B000$080.mif
DIESEL INJECTION
Fault finding – Conformity check13B
DCM 1.2 Injection
Program no.: 4C
Vdiag No.: 08
STATUS CHECK (CONTINUED 2)
NOTESOnly perform this conformity check after a complete check using the diagnostic tool.
The values shown in this conformity check are given as a guide.
Application conditions: Engine idling, warm engine, coolant temperature > 80°C.
FunctionParameter or status
checked or actionDisplay and notes Fault finding
Brake
contactET122:Brake switch no.
1 signalINACTIVE
INACTIVE: Brake pedal released.
ACTIVE: Brake pedal depressed.In the event of a fault, refer
to the interpretation of
status ET122.
ET123:Brake switch no.
2 signalINACTIVE
Indicates recognition of brake pedal
contacts.
INACTIVE: Brake pedal released.
ACTIVE: Brake pedal depressed.If status ET123 is
inconsistent, run a
multiplex network test
using the diagnostic tool.
Clutch pedalET233:Clutch pedalRELEASED
Indicates recognition of clutch pedal
contacts.
RELEASED: Pedal released.
DEPRESSED: Pedal depressed.In the event of a fault,
consult the interpretation
of status ET233.
13B-130V1 MR-376-X76-13B000$080.mif
DIESEL INJECTION
Fault finding – Conformity check13B
DCM 1.2 Injection
Program no.: 4C
Vdiag No.: 08
PARAMETER CHECK
NOTESOnly perform this conformity check after a complete check using the diagnostic tool.
The values shown in this conformity check are given as a guide.
Application conditions: Engine idling, warm engine, coolant temperature > 80°C.
FunctionParameter or status
checked or actionDisplay and notes Fault finding
Idle speed
regulationPR010:Idle speed
regulation
setpointShows the speed of rotation
that the engine should reach
at idle speed: approximately
825 rpm.In the event of a fault, consult the
interpretation of faults DF007 Rail
pressure sensor circuit, DF024
Low pressure actuator control
circuit and DF053 Rail pressure
regulation function.
Accelerator
pedalPR030:Accelerator
pedal
positionPR030 = 0 %
Gives the accelerator pedal
position in %.In the event of a fault, apply the
interpretation of faults DF008 Pedal
potentiometer circuit gang 1,
DF009 Pedal potentiometer circuit
gang 2, DF113 Sensor supply
voltage and DF122 Pedal
potentiometer gang 2 supply
voltage.
Coolant
temperaturePR064:Coolant
temperatureWarm: 90°C
Indicates the engine coolant
temperature in °C.
Default value: 80°C.In the event of a fault, consult the
interpretation of parameter PR064.
Vehicle speedPR089:Vehicle
speedGives the vehicle speed in
mph (km/h). This parameter
is sent by the ABS computer
or the vehicle speed
computer. Refer to fault finding for the ABS
system or the vehicle speed
computer.
13B-131V1 MR-376-X76-13B000$080.mif
DIESEL INJECTION
Fault finding – Conformity check13B
DCM 1.2 Injection
Program no.: 4C
Vdiag No.: 08
PARAMETER CHECK (CONTINUED 1)
NOTESOnly perform this conformity check after a complete check using the diagnostic tool.
The values shown in this conformity check are given as a guide.
Application conditions: Engine idling, warm engine, coolant temperature > 80°C.
FunctionParameter or status
checked or actionDisplay and notes Fault finding
Air
temperaturePR058:Air
temperatureGives the inlet air temperature
in °C. This information is
supplied by the air
temperature sensor
incorporated in the air
flowmeter.
Default value: 20°C.In the event of a problem, consult
the interpretation of fault DF056
Air flow sensor circuit.
Fuel
temperaturePR063:Fuel
temperatureCold = PR064 Coolant
temperature
Warm: 50°C
Gives the fuel temperature in
°C. This value is measured by
the fuel temperature sensor.
Default value: 30°C.If there is a fault, use the
interpretation of fault DF098 Fuel
temperature sensor circuit.
Atmospheric
pressurePR035:Atmospheric
pressureIndicates the atmospheric
pressure in mbar. The sensor
is built into the computer. In the event of inconsistency,
with the engine stopped and
ignition on, check that parameter
PR035PR312local
atmospheric pressure. Inlet manifold
vacuumPR312:Inlet manifold
vacuumIndicates the pressure in the
inlet circuit in mbar.
Battery voltagePR074:Battery voltage12 V < PR074 < 14.4 V.In the event of a fault, apply the
fault finding procedure for the
Charging circuit.
13B-132V1 MR-376-X76-13B000$080.mif
DIESEL INJECTION
Fault finding – Conformity check13B
DCM 1.2 Injection
Program no.: 4C
Vdiag No.: 08
PARAMETER CHECK (CONTINUED 2)
NOTESOnly perform this conformity check after a complete check using the diagnostic tool.
The values shown in this conformity check are given as a guide.
Application conditions: Engine idling, warm engine, coolant temperature > 80°C.
FunctionParameter or status
checked or actionDisplay and notes Fault finding
Air flowPR018:Estimated air
flowEstimation of the air flow by the
injection computer given in mg/st.NONE
Fuel flowPR017:Fuel flowGives the fuel flow at the high
pressure pump outlet in mg/st.NONE
Rail pressurePR038:Rail pressureIndicates the pressure in bar of
the diesel fuel in the injector rail.
This pressure is supplied by the
sensor on the rail.
Default value: 2000 bar.If there is a fault, use the
interpretation of fault
DF007 Rail pressure
sensor circuit.
PR008:Rail reference
pressurePR008 = 375 bar (Engine starting
pressure setpoint)
Cold: 405 bar
Warm: 230 bar
Gives the theoretical pressure
value for optimum engine
operation.NONE
13B-133V1 MR-376-X76-13B000$080.mif
DIESEL INJECTION
Fault finding – Conformity check13B
DCM 1.2 Injection
Program no.: 4C
Vdiag No.: 08
PARAMETER CHECK (CONTINUED 3)
NOTESOnly perform this conformity check after a complete check using the diagnostic tool.
The values shown in this conformity check are given as a guide.
Application conditions: Engine idling, warm engine, coolant temperature > 80°C.
FunctionParameter or status
checked or actionDisplay and notes Fault finding
EGR valvePR051:EGR valve
position
feedbackPR051 = 0%
Gives the actual value of the EGR
valve position.
PR051 = PR005.
Default value 30%.In the event of a fault, apply the
interpretation of faults DF209
EGR valve position sensor
circuit, DF016 EGR control
circuit and DF114 EGR
solenoid valve circuit (not
applicable to K9K796 Euro 2). PR052:EGR valve
opening
setpointIn %
Gives a theoretical EGR valve
opening value for optimum engine
operation.
PR005 = PR051
Pedal loadPR217:Pedal load
(gang 1)
Shows the voltage supply
percentage for gangs 1 and 2 of
the pedal potentiometer.
10% < PR217 < 20%,
5% < PR218 < 15%.In the event of a fault, apply the
interpretation of faults DF008
Pedal potentiometer circuit
gang 1, DF009 Pedal
potentiometer circuit gang 2,
DF113 Sensor supply voltage
and DF122 Pedal
potentiometer gang 2 voltage
supply. PR218:Pedal load
(gang 2)
13B-134V1 MR-376-X76-13B000$080.mif
DIESEL INJECTION
Fault finding – Conformity check13B
DCM 1.2 Injection
Program no.: 4C
Vdiag No.: 08
PARAMETER CHECK (CONTINUED 4)
NOTESOnly perform this conformity check after a complete check using the diagnostic tool.
The values shown in this conformity check are given as a guide.
Application conditions: Engine idling, warm engine, coolant temperature > 80°C.
FunctionParameter or status
checked or actionDisplay and notes Fault finding
Sensor
voltagePR077:EGR valve
position
sensor voltage0.5 V < PR077 < 4.8 VIn the event of a fault, apply the
interpretation of fault DF209
EGR valve position sensor
circuit (not applicable to
K9K796 Euro 2).
PR344:Manifold
pressure
sensor voltageShows the voltage supplied by the
computer to feed the inlet pressure
sensor in volts.In the event of a fault, apply the
interpretation of fault DF089
Inlet manifold pressure
sensor circuit.
PR080:Rail pressure
sensor voltage0.5 V < PR080 < 4.5 V
Shows the voltage supplied by the
computer on the rail pressure
sensor in volts.
Default value: 4.5 V.In the event of a problem, apply
the interpretation of DF007 Rail
pressure sensor circuit.
PressurePR037:Refrigerant
pressure2 bar < PR037 < 27 bar
Shows the value of the refrigerant
fluid pressure in the system in bar.
Default value: 0 bar.In the event of a fault, apply the
interpretation of fault DF049
Refrigerant sensor circuit.
Air flowPR019:Linearised air
flowShows the linearised air flow in g/s.In the event of a fault, apply the
interpretation of fault DF056 Air
flow sensor circuit.
13B-143
AFTER REPAIRDeal with any faults displayed 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$120.mif
13B
DCM 1.2 Injection
Program no.: 4C
Vdiag No.: 08
PR058AIR TEMPERATURE
NOTESSpecial notes:
This circuit is not present on vehicles equipped with K9K 790, 794 engines.
Only apply the checks if the parameter is inconsistent.
Use the Wiring Diagrams Technical Note for Logan, Sandero, Duster, Thalia 2 or
Symbol 2.
Check the condition of the air flowmeter connections, component code 799.
If the connector is faulty and 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.
If necessary, replace the air temperature/pressure sensor (see MR 388 (Logan/Sandero) or MR 451 (Duster),
Mechanical, 12A, Fuel mixture, Air flowmeter: Removal - Refitting).
Measure the resistance between connections 3B and 3DW of the air flowmeter.
If the resistance of the air temperature / pressure sensor is not:
(theoretical values)
41255 < X < 47492 at – 40°C,
14260 < X < 16022 at – 20°C,
5497 < X < 6050 at 0°C,
2353 < X < 2544 at 20°C,
1114 < X < 1186 at 40°C,
569 < X < 597 at 60°C,
310 < X < 322 at 80°C,
180 < X < 185 at 100°C,
replace the air temperature / pressure sensor (see MR388 (Logan/Sandero) or MR451 (Duster), Mechanical,
12A, Fuel mixture, Air flowmeter: Removal - Refitting).
DCM1.2_V08_PR058
DIESEL INJECTION
Fault finding – Interpretation of parameters
13B-144
AFTER REPAIRDeal with any faults displayed 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$120.mif
DIESEL INJECTION
Fault finding – Interpretation of parameters13B
DCM 1.2 Injection
Program no.: 4C
Vdiag No.: 08
PR064COOLANT TEMPERATURE
NOTESSpecial notes:
Only apply the checks if the parameter is inconsistent.
Use the Wiring Diagrams Technical Note for Logan, Sandero, Duster, Thalia 2/
Symbol 2 or Kangoo VLL.
Check the condition of the coolant temperature sensor connections, component code 244.
If the connector is faulty and 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.
If necessary, replace the sensor.
Measure the resistance between connections 3C and 3JK of the coolant temperature sensor, component code
244:
If the resistance of the coolant temperature sensor is not:
(theoretical values)
11.5 < X < 13.5 at – 10°C,
2140 < X < 2364 at 25°C,
773 < X < 851 at 50°C,
275 < X < 291 at 80°C,
112 < X < 118 at 110°C,
Replace the coolant temperature sensor (see MR 388 (Logan/Sandero), MR 451 (Duster), MR 423 (Thalia 2/
Symbol 2) or MR 374 (Kangoo VLL), Mechanical, 19A Cooling, Coolant temperature sensor: Removal –
Refitting).
DCM1.2_V08_PR064