2010 RENAULT SCENIC Engine And Pheripherals DCM 1.2 Injection Workshop Manual

13B-145
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.
V10 MR-372-J84-13B100$150.mif
DIESEL INJECTION
Fault finding – Interpretation of statuses13B
DCM 1.2 Injection
Program No.: 4D
Vdiag No.: 48, 4C, 50,
54, 58, 5C
ET042
CONTINUED 6
CRUISE CONTROL
CONTINUEDFor Clio III, Modus, New Twingo and Kangoo 2:
Check the connections on the cruise control/speed limiter on-off control, component
code 1081.
If the connector is faulty and there is a repair method (see Technical Note 6015A,
Repairing electrical wiring, Wiring: Precautions for repair), repair the connector(s),
otherwise replace the wiring.
Check for + 12 V after ignition feed on connection AP10 of component 1081.
If the connection is faulty and there is a repair procedure (see Technical Note 6015A,
Electrical wiring repair, Wiring: Precautions for repair), repair the wiring, otherwise
replace it.
Disconnect the cruise control speed limiter on/off control connector, component
code 1081 and with it in the rest position, check the insulation between connections:
●AP10 and 3FX of component 1081
●AP10 and 3PD of component 1081.
Check on the cruise control speed limiter on/off control connector component code
1081, the continuity between connections AP10 and 3PD of component 1081, in the
speed limiter position.
Check on the cruise control speed limiter on/off control connector, component code
1081, the continuity between connections AP10 and 3FX of component 1081, in the
cruise control position.
If the checks are incorrect, replace the switch, component code 1081
Check the insulation, continuity and the absence of interference resistance on the
following connections:
–3FX between components 1081 and 120,
–3PD between components 1081 and 120.
If the connection or connections are faulty and there is a repair procedure (see
Technical Note 6015A, Electrical wiring repair, Wiring: Precautions for repair),
repair the wiring, otherwise replace the wiring.
Also check the engine management computer connections, component code 120.
If the connector(s) is 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.

13B-146
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.
V10 MR-372-J84-13B100$150.mif
DIESEL INJECTION
Fault finding – Interpretation of statuses13B
DCM 1.2 Injection
Program No.: 4D
Vdiag No.: 48, 4C, 50,
54, 58, 5C
ET076STARTING
STATUS DEFINITIONPROHIBITED: This status indicates that starting is not possible.
AUTHORISED: This status indicates that starting is possible.
NOTESThis status only concerns the automatic gearbox.
Conformity check: Engine stopped, ignition on or engine running.
"PROHIBITED"
OR
AUTHORISEDRefer to the Automatic gearbox fault finding note (see 23A, Automatic gearbox).
DCM1.2_V48_ET076/DCM1.2_V4C_ET076/DCM1.2_V50_ET076/DCM1.2_V54_ET076/DCM1.2_V58_ET076/DCM1.2_V5C_ET076

13B-147
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.
V10 MR-372-J84-13B100$150.mif
DIESEL INJECTION
Fault finding – Interpretation of statuses13B
DCM 1.2 Injection
Program No.: 4D
Vdiag No.: 48, 4C, 50,
54, 58, 5C
ET077IMPACT DETECTED
STATUS DEFINITIONYES: This status indicates that the airbag computer has detected an impact.
NO: This status indicates that the airbag computer has not detected an impact.
Conformity check: Engine stopped, ignition on or engine running.
YESIf an impact has been stored by the injection computer, switch off the ignition for
10 seconds, then switch it back on so that the engine can be started.
Always clear any faults (even if no faults are present or stored).
NOUnder normal operating conditions, the computer has received no impact signal.
DCM1.2_V48_ET077/DCM1.2_V4C_ET077/DCM1.2_V50_ET077/DCM1.2_V54_ET077/DCM1.2_V58_ET077/DCM1.2_V5C_ET077

13B-148
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.
V10 MR-372-J84-13B100$150.mif
DIESEL INJECTION
Fault finding – Interpretation of statuses13B
DCM 1.2 Injection
Program No.: 4D
Vdiag No.: 48, 4C, 50,
54, 58, 5C
ET079AIR CONDITIONING PRESENT
STATUS DEFINITIONYES: This status indicates that air conditioning is present on the vehicle.
NO: This status indicates that air conditioning is not present on the vehicle.
NOTESThe heating and air conditioning system is present depending on the vehicle's
equipment level.
Conformity check: Engine stopped, ignition on or engine running.
YES or NO, depending on the vehicle equipment.
DCM1.2_V48_ET079/DCM1.2_V4C_ET079/DCM1.2_V50_ET079/DCM1.2_V54_ET079/DCM1.2_V58_ET079/DCM1.2_V5C_ET079

13B-149
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.
V10 MR-372-J84-13B100$150.mif
DIESEL INJECTION
Fault finding – Interpretation of statuses13B
DCM 1.2 Injection
Program No.: 4D
Vdiag No.: 48, 4C, 50,
54, 58, 5C
ET088REQUEST TO START COMPRESSOR
STATUS DEFINITIONACTIVE: the compressor activation request is active.
INACTIVE: the compressor activation request is not active.
Conformity check: Engine stopped and ignition on, or engine running and engine coolant
temperature > 80
°C
ACTIVEStatus ET088 becomes ACTIVE if there has been a request for air conditioning (press
on AC or AUTO button, with maximum cold request) and status ET004 is YES.
The selection is made on the air conditioning control panel, the request for air
conditioning is transmitted to the UCH which in turn transmits the request to the injection
computer which either authorises or does not authorise compressor activation. If the
injection computer authorises activation of the compressor, it sends the compressor
activation request to the UPC and status ET088 Compressor activation request
becomes ACTIVE (Climate control).
If the vehicle is equipped with manual air conditioning, the air conditioning request is
transmitted from the air conditioning control panel to the UCH which then accepts or does
not accept the air conditioning compressor coming on depending on the operating status
of the passenger compartment fan. When the request has been accepted, the request
to switch on the compressor is transmitted to the injection computer which either
authorises or does not authorise the compressor to start.
If the injection computer authorises compressor activation, it sends the compressor
activation request to the UPC and status ET088 Compressor activation request
becomes ACTIVE.
If there has been no compressor activation request and status ET088 remains ACTIVE,
see 62A, Air conditioning.
Note: Compressor operation is only authorised when the engine is running.
Compressor activation is commanded by the UPC.
INACTIVEStatus ET088 is INACTIVE when no air conditioning request has been made. When
compressor activation is not authorised (ET004 is NO or when the driver switches the
air conditioning off.
If a compressor activation request has been made and status ET088 remains INACTIVE
see 62A, Air conditioning.
Note: Compressor operation is only authorised when the engine is running.
Compressor activation is commanded by the UPC.
DCM1.2_V48_ET088/DCM1.2_V4C_ET088/DCM1.2_V50_ET088/DCM1.2_V54_ET088/DCM1.2_V58_ET088/DCM1.2_V5C_ET088

13B-150
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.
V10 MR-372-J84-13B100$150.mif
DIESEL INJECTION
Fault finding – Interpretation of statuses13B
DCM 1.2 Injection
Program No.: 4D
Vdiag No.: 48, 4C, 50,
54, 58, 5C
*RCH = Passenger Compartment Heating Resistors
ET111SET NUMBER OF PASSENGER COMPARTMENT HEATING RESISTORS
STATUS DEFINITIONThis status indicates that the injection computer is blocking any change to the number
of passenger compartment air heating resistors active (active ones are not cut off, but
no more can be added). This freeze in the number of heating resistors is in response to
vehicle needs (availability of power, need for torque etc.).
Conformity check: Engine stopped and ignition on, or engine running and engine coolant
temperature > 80
°C
YESDepending on the requirements of the injection system (e.g. torque reduction, power
requirements), the injection computer sets the number of activated passenger
compartment heating resistors (no more or no fewer than required).
Status ET111 becomes YES when the number of activated passenger compartment
heating resistors is set by the injection computer.
NODepending on the requirements of the injection system (e.g. torque reduction, power
requirements), the injection computer sets the number of activated passenger
compartment heating resistors (no more or no fewer than required). Status ET111
becomes NO if the number of passenger compartment heating resistors engaged can
be freely controlled by the UCH.
DCM1.2_V48_ET111/DCM1.2_V4C_ET111/DCM1.2_V50_ET111/DCM1.2_V54_ET111/DCM1.2_V58_ET111/DCM1.2_V5C_ET111

13B-151
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.
V10 MR-372-J84-13B100$150.mif
DIESEL INJECTION
Fault finding – Interpretation of statuses13B
DCM 1.2 Injection
Program No.: 4D
Vdiag No.: 48, 4C, 50,
54, 58, 5C
*RCH = Passenger Compartment Heating Resistors
ET112PASSENGER COMPARTMENT HEATING RESISTOR CUT-OFF
STATUS DEFINITIONThis status indicates that the injection computer is blocking activation of all passenger
compartment air heating resistors due to vehicle needs (availability of power, need for
torque, injection defect mode or heating and ventilation etc.).
Conformity check: Engine stopped and ignition on, or engine running and engine coolant
temperature > 80
°C
YESDepending on the requirements of the injection system (e.g. torque reduction, power
requirements), the injection computer cuts off the passenger compartment heating
resistors.
Status ET112 becomes YES when the passenger compartment heating resistors are cut
off by the injection computer.
NODepending on the requirements of the injection system (e.g. torque reduction, power
requirements), the injection computer cuts off the passenger compartment heating
resistors.
Status ET112 becomes NO when the passenger compartment heating resistors can be
freely controlled by the UCH.
DCM1.2_V48_ET112/DCM1.2_V4C_ET112/DCM1.2_V50_ET112/DCM1.2_V54_ET112/DCM1.2_V58_ET112/DCM1.2_V5C_ET112

13B-152
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.
V10 MR-372-J84-13B100$150.mif
DIESEL INJECTION
Fault finding – Interpretation of statuses13B
DCM 1.2 Injection
Program No.: 4D
Vdiag No.: 48, 4C, 50,
54, 58, 5C
ET405CLUTCH PEDAL SWITCH
STATUS DEFINITIONACTIVE: this status indicates that the clutch pedal is depressed.
INACTIVE: this status indicates that the clutch pedal is released.
NOTESSpecial note:
Only apply the checks if the INACTIVE and ACTIVE statuses are not consistent with
the pedal position.
Conformity check: Engine stopped, ignition on or engine running.
STATUS INACTIVE
with clutch pedal
depressed.–Check the condition and the fitting of the clutch switch, component code 675.
–Check and ensure continuity on connection 86D between components 675 and 120.
–Check and ensure the presence of earth on connection MAS of component 675 (for
Clio III, Modus, New Twingo, Mégane II and Scénic II) and on the connection MAN
of component 675 (for Kangoo 2).
–Repair if necessary.
Remove the clutch switch and test its operation:
Continuity between
connectionsInsulation between
connections
Switch pressed
(Clutch pedal released)86D and MAS or MAN-
Switch released
(Clutch pedal depressed)-86D and MAS or MAN
If necessary, replace the clutch pedal switch, component code 675 (see MR 364
(Mégane II), MR 370 (Scénic II), MR 385 (Modus), MR 392 (Clio III), MR 411 (New
Twingo), MR 417 (Kangoo 2), Mechanical, 37A, Mechanical component controls,
Clutch pedal position sensor: Removal - Refitting).
DCM1.2_V48_ET405/DCM1.2_V4C_ET405/DCM1.2_V50_ET405/DCM1.2_V54_ET405/DCM1.2_V58_ET405/DCM1.2_V5C_ET405