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 141 of 204
13B-141V1 MR-376-X76-13B000$110.mif
13B
DCM 1.2 Injection
Program no.: 4C
Vdiag No.: 08
Tool Parameter Diagnostic tool title
PR001Advance
PR005EGR valve opening setpoint (not applicable to K9K796 Euro 2)
PR008Rail reference pressure
PR010Idle speed regulation setpoint
PR017Fuel flow
PR018Estimated air flow
PR019Linearised air flow
PR021EGR request (not applicable to K9K796 Euro 2)
PR026EGR offset position (not applicable to K9K796 Euro 2)
PR030Accelerator pedal position
PR033Requested inlet pressure
PR035Atmospheric pressure
PR036Linearised atmospheric pressure
PR037Refrigerant pressure
PR038Rail pressure
PR040Linearised rail pressure
PR051EGR valve position feedback (not applicable to K9K796 Euro 2)
PR055Engine speed
PR057Linearised fuel temperature
PR058Air temperature
PR063Fuel temperature
PR064Coolant temperature
PR065Linearised coolant temperature
DIESEL INJECTION
Fault finding – Parameter summary table
Page 142 of 204
13B-142V1 MR-376-X76-13B000$110.mif
DIESEL INJECTION
Fault finding – Parameter summary table13B
DCM 1.2 Injection
Program no.: 4C
Vdiag No.: 08
Tool Parameter Diagnostic tool title
PR074Battery voltage
PR077EGR valve position sensor voltage (not applicable to K9K796 Euro 2)
PR080Rail pressure sensor voltage
PR089Vehicle speed
PR125Power used by the AC compressor
PR136EGR position (not applicable to K9K796 Euro 2)
PR148Pedal potentiometer voltage gang 2
PR175Vehicle speed/engine speed ratio
PR217Pedal load (gang 1)
PR218Pedal load (gang 2)
PR311Manifold air temperature
PR312Inlet manifold vacuum
PR313Linearised manifold pressure
PR315Linearised manifold air temperature
PR316Linearised sensor supply voltage
PR344Manifold pressure sensor voltage
PR400New EGR valve offset (not applicable to K9K796 Euro 2)
PR634Air flow request
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 146 of 204

13B-146V1 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
AC029 High pressure circuit sealing testActivating this will request the injection system to detect a
leak on the high pressure circuit after a procedure has been
carried out. This is activated with the engine warm and
running and consists of unladen acceleration repeated 4
times.
AC056 Power-assisted steering
assembly relayActivating this actuates the power assisted steering pump.
AC060 Preheating warning lightActivating this actuates the preheating warning light on the
instrument panel.
AC061 Overheating warning light.Activating this actuates the engine overheating warning light
on the instrument panel.
AC068Injection fault warning light.Activating this actuates the injection fault warning light on
the instrument panel.
AC099Deactivation of electrical
consumersThis activation only deactivates the preheating function.
AC100End deactivation of electrical
consumersActivating this enables preheating to be authorised after the
injection computer has been programmed or reprogrammed
(see Replacement of components).
AC153 High-speed fan assemblyActivating this actuates the high speed fan relay to test the
supply to the high speed fan.
AC154 Fan low speed.Activating this actuates the low speed fan relay to test the
supply to the low speed fan.
AC155MIL warning lightThis activation controls the malfunction indicator light on the
instrument panel (emission control/EOBD warning light).
AC180 Air conditioning compressor
relay control.Activating this enables you to listen to the operation of the
air conditioning compressor.
AC212 New pump chamber fillingThis must only be activated after the high pressure pump
has been replaced (see Replacement of components).
This command is used to activate the pump repriming
sequence.
AC250 Heating resistor 1 relay.Activating this controls the heating resistor no. 1 relay to test
the heating resistor supply.
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.