Page 134 of 204

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.
Page 136 of 204

13B-136
AFTER REPAIRDeal with any faults. Clear the faults from the computer memory.
Switch off the ignition and carry out a road test followed by a test with the diagnostic
tool.
V1 MR-376-X76-13B000$100.mif
13B
DCM 1.2 Injection
Program no.: 4C
Vdiag No.: 08
ET122BRAKE CONTACT SIGNAL No. 1
NOTESSpecial notes:
Carry out the checks only if the INACTIVE and ACTIVE statuses are not consistent with
the pedal position.
Use the Wiring Diagrams Technical Note for Logan, Sandero, Duster, Thalia 2/
Symbol 2 or Kangoo VLL.
STATUS INACTIVE: Brake pedal depressed.
If the brake lights are working:
– Check and ensure the continuity of connection 5A between the connector of the brake light switch, component
code 160 and the connector of the computer, component code 120.
If the brake lights are not working:
– Check the condition and fitting of the brake light switch and brake lights fuse.
– Remove and test the operation of the brake light switch:
Only for K9K 714, 718, 740
enginesContinuity between connections:Insulation between
connections:
Switch depressed (Brake pedal
released)5A and AP10 65A and AP10
Switch released (Brake pedal
depressed)65A and AP10 5A and AP10
DCM1.2_V08_ET122
DIESEL INJECTION
Fault finding – Interpretation of statuses
Page 137 of 204

13B-137
AFTER REPAIRDeal with any faults. Clear the faults from the computer memory.
Switch off the ignition and carry out a road test followed by a test with the diagnostic
tool.
V1 MR-376-X76-13B000$100.mif
DIESEL INJECTION
Fault finding – Interpretation of statuses13B
DCM 1.2 Injection
Program no.: 4C
Vdiag No.: 08
ET122
CONTINUED 1
Only for K9K 790, 792, 794,
796 enginesContinuity between connections:Insulation between
connections:
Switch depressed (Brake pedal
released)5A and AP1 65A and AP1
Switch released (Brake pedal
depressed)65A and AP1 5A and AP1
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 necessary, replace the switch (see MR 388 (Logan/Sandero), MR 451 (Duster), MR 423 (Thalia 2/Symbol
2) or MR 374 (Kangoo VLL), Mechanical, 37A, Mechanical component controls, Brake pedal: Removal -
Refitting).
– Check for + after ignition feed on connections AP1 or AP10 of the brake light switch connector.
Page 138 of 204

13B-138
AFTER REPAIRDeal with any faults. Clear the faults from the computer memory.
Switch off the ignition and carry out a road test followed by a test with the diagnostic
tool.
V1 MR-376-X76-13B000$100.mif
DIESEL INJECTION
Fault finding – Interpretation of statuses13B
DCM 1.2 Injection
Program no.: 4C
Vdiag No.: 08
ET122
CONTINUED 2
STATUS ACTIVE: Brake pedal released.
– Check the condition and fitting of the brake light switch, the brake lights fuse and the conformity of the bulbs.
– Remove and test the operation of the brake light switch:
Only for K9K 714, 718, 740
enginesContinuity between connections:Insulation between
connections:
Switch depressed (Brake pedal
released)5A and AP10 65A and AP10
Switch released (Brake pedal
depressed)65A and AP10 5A and AP10
Only for K9K 790, 792, 794, 796
enginesContinuity between connections:Insulation between
connections:
Switch depressed (Brake pedal
released)5A and AP1 65A and AP1
Switch released (Brake pedal
depressed)65A and AP1 5A and AP1
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 necessary, replace the switch (see MR 388 (Logan/Sandero), MR 451 (Duster), MR 423 (Thalia 2/Symbol
2) or MR 374 (Kangoo VLL), Mechanical, 37A, Mechanical component controls, Brake pedal: Removal -
Refitting).
– Check the insulation to + 12 V of connection 5A between the brake light switch connector and the computer
connector.
Page 139 of 204

13B-139
AFTER REPAIRDeal with any faults. Clear the faults from the computer memory.
Switch off the ignition and carry out a road test followed by a test with the diagnostic
tool.
V1 MR-376-X76-13B000$100.mif
DIESEL INJECTION
Fault finding – Interpretation of statuses13B
DCM 1.2 Injection
Program no.: 4C
Vdiag No.: 08
ET233CLUTCH PEDAL
NOTESSpecial notes:
Carry out the checks only if the RELEASED and DEPRESSED statuses are not
consistent with the pedal position.
Use the Wiring Diagrams Technical Note for Logan, Sandero, Duster, Thalia 2/
Symbol 2 or Kangoo VLL.
Only for K9K 714, 718, 740 engines
"RELEASED" STATUS and clutch pedal depressed.
Check the condition and the fitting of the clutch switch, component code 675.
Check and ensure the continuity of connection 86D between the clutch switch connector and the injection
computer connector, component code 120.
Check and ensure the presence of earth on connection M or MK of component 675.
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.
Remove the clutch switch and check that it is operating correctly:
Continuity between tracks Insulation between tracks
Switch pressed (Clutch pedal
released)86D and M or MK -
Switch released (Clutch pedal
depressed)-86D and M or MK
If necessary, replace the switch (see MR 388 (Logan/Sandero), MR 451 (Duster), MR 423 (Thalia 2/Symbol 2)
or MR 374 (Kangoo VLL), Mechanical, 37A, Mechanical component controls, Clutch pedal: Removal -
Refitting).
DCM1.2_V08_ET233
Page 143 of 204

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
Page 148 of 204
13B-148V1 MR-376-X76-13B000$140.mif
13B
DCM 1.2 Injection
Program no.: 4C
Vdiag No.: 08
NOTESOnly consult this customer complaint after a complete check with the diagnostic
tool.
No dialogue with the computerALP1
Starting fault:
The engine will not start ALP2
The engine starts with difficulty, or starts then stalls ALP3
Starting difficult with Warm engine ALP4
Rough idling speed (pumping)ALP5
Idling speed too high or too lowALP6
DIESEL INJECTION
Fault finding – Customer complaints
Page 150 of 204

13B-150
AFTER REPAIRCarry out a road test followed by a check with the diagnostic tool.
V1 MR-376-X76-13B000$150.mif
13B
DCM 1.2 Injection
Program no.: 4C
Vdiag No.: 08
ALP1 No dialogue with the computer
NOTESOnly consult this customer complaint after a complete check with the diagnostic
tool.
Try to establish dialogue with a computer on another vehicle to check that the diagnostic tool is not faulty. If the
tool is not at fault, and dialogue cannot be established with any other computer on the same vehicle, the cause
could be a faulty computer interfering on the multiplex network. Check the battery voltage and make the necessary
adjustments to obtain a correct voltage (9.5 V < Battery voltage < 17.5 V).
Carry out fault finding on the multiplex network using the diagnostic tool (see88B, Multiplexing).
Check the presence and the condition of the injection fuses in the engine fuse box.
Check the connection of the injection computer connectors, component code 120 and the condition of its
connections.
Check the injection computer earths (quality, oxidation, tightness of earth bolts on the battery terminal).
Check that the supply to the computer is correct:
●NH or N between the earth and component 120.
●AP29 or AP15 between components 1016 or 260 and 120.
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.
A
DCM1.2_V08_ALP01
DIESEL INJECTION
Fault finding – Fault Finding Chart