2012 RENAULT SCENIC heating

13B-422V12 MR-372-J84-13B300$140.mif
13B
EDC16CP33
Program No.: C4
Vdiag No.: 04, 08, 18, 1C,
20, 24, 26, 28, 34, 38, 44,
4C, 54, 58, 5C, 60, 62, 74
NOTESThe commands are run to check the correct operation of certain components or to
replace parts.
Tool command Diagnostic tool title
SC001Write saved data
SC002Enter injector codes
SC003Save computer data
SC017Particle filter regeneration (except Vdiag 18, 04, 08, 44, 4C, 34, 38, 74)
SC031Operational fault finding of cylinders (except Vdiag 18)
SC035High pressure fuel circuit fault finding
SC036Reinitialise programming
RZ001Fault memory
RZ005Programming
RZ034Computer memory
AC004Turbocharging solenoid valve
AC012Damper valve
AC031Thermoplunger No. 3 relay
AC037Preheating relay
AC063Thermoplunger No. 1 relay
AC064Thermoplunger No. 2 relay
AC103EGR by-pass
AC153High speed fan assembly (except Mégane II ph2 and Scénic II ph2)
AC154Low speed fan assembly (except Mégane II ph2 and Scénic II ph2).
AC195Electric coolant pump (except Vdiag 04, 08, 44, 4C, 34, 38, 74)
AC225Rail pressure regulator
AC226Pump pressure regulator.
MT001Turbocharging function (Vdiag 04 and 44 only)
VP010Write VIN
VP036Fuel supply inhibited
DIESEL INJECTION
Fault finding – Command summary table

13B-428V12 MR-372-J84-13B300$150.mif
DIESEL INJECTION
Fault finding – Interpretation of commands13B
SC017
CONTINUED 1
PROCEDURE TO BE FOLLOWED:
To run this command, select the command mode on the diagnostic tool and run command SC017.
When regeneration is complete, a message will indicate whether regeneration was successful, and what
operations need to be carried out (filter replacement, whether an oil service is required, etc.).
DESCRIPTION OF THE PROCESS
particle filter regeneration takes place in 3 stages (values given as a guide only):
Heating phase: the speed is fixed or fluctuating around 3000 rpm.
– This phase lasts at least 6minutes, until the coolant temperature is above 80°C.
–Regeneration phase: the speed is fixed or varies around 2000 rpm. Engine injection is retarded. The exhaust
fumes rise in temperature and burn the soot retained in the particle filter. The particle filter downstream
temperature starts to rise after the particle filter upstream temperature due to the volume of the particle filter.
Then the combustion of the soot stored in the particle filter causes the particle filter downstream temperature
to increase, possibly reaching more than 700°C depending on the amount of soot in the filter (with a particle
filter upstream temperature of around 600°C). This phase lasts about 30 minutes.
–Cooling phase: the engine speed is fixed or varies around 2000 rpm.
– Engine injection returns to normal and the exhaust gases cool the particle filter.
– This phase lasts 3 minutes. At the end of this period, the engine speed returns to idle speed or remains fixed
at 2000 rpm.
The process lasts at least 40 minutes (the regeneration time will be increased depending on how long it takes
for the coolant to heat up to 80°C).
EDC16CP33
Program No.: C4
Vdiag No.: 1C, 20, 24, 26,
28, 54, 58, 5C, 60, 62
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.

13B-437V12 MR-372-J84-13B300$150.mif
DIESEL INJECTION
Fault finding – Interpretation of commands13B
RZ005PROGRAMMING
NOTESSpecial notes:
this command enables you to reinitialise the entire computer configuration according to
the vehicle.
Command RZ005 reconfigures the computer.
If the computer does not have any configuration data, use command RZ005 to enter the vehicle options:
– air conditioning,
– Passenger compartment heating resistor,
– cruise control/speed limiter.
These options are detected by the computer even if command RZ005 is not used.
The computer is configured as soon as the one of the vehicle's optional system components is operated.
EDC16CP33_V18_RZ005 / EDC16CP33_V1C_RZ005 / EDC16CP33_V54_RZ005 / EDC16CP33_V20_RZ005 / EDC16CP33_V58_RZ005 /
EDC16CP33_V5C_RZ005 / EDC16CP33_V24_RZ005 / EDC16CP33_V04_RZ005 / EDC16CP33_V08_RZ005 / EDC16CP33_V44_RZ005 /
EDC16CP33_V4C_RZ005 / EDC16CP33_V34_RZ005 / EDC16CP33_V38_RZ005 / EDC16CP33_V74_RZ005 / EDC16CP33_V28_RZ005 /
EDC16CP33_V62_RZ005 / EDC16CP33_V26_RZ005 / EDC16CP33_V60_RZ005
EDC16CP33
Program No.: C4
Vdiag No.: 04, 08, 18, 1C,
20, 24, 26, 28, 34, 38, 44,
4C, 54, 58, 5C, 60, 62, 74
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.

13B-442V12 MR-372-J84-13B300$150.mif
DIESEL INJECTION
Fault finding – Interpretation of commands13B
AC031THERMOPLUNGER No. 3 RELAY
NOTESCheck that the computer is correctly configured using command LC056
Thermoplungers
There must be no present or stored faults:
Perform this fault finding procedure if there is a fault with the passenger compartment
heating - demisting.
Use the Wiring Diagram Technical Note, Laguna II ph2, Vel Satis ph2, Espace IV
ph2, Mégane II ph2, Scénic II ph2.
If the Thermoplunger no. 3 relay or the additional heater interface unit does not function when command
AC031 is run.
Check the condition of the thermoplunger 3 relay mounting on the engine fuse box or the additional heater
interface unit (see Wiring Diagram Technical Note, Vehicle, component code 1069 or 1550).
Check the condition of the engine management computer connector (see Wiring Diagram Technical Note,
Vehicle, component code 120).
If the connector or connectors are faulty and if there is a repair procedure (see Technical Note 6015A, Electrical
wiring repair, Wiring: Precautions for repair), repair the connector, otherwise replace the wiring.
if the fault is still present, check as follows that this relay is controlled by the engine management computer:
Disconnect the thermoplunger no. 3 relay and fit a 50 Ω to 100Ω resistor on its mounting instead of the coil and
connect a voltmeter as follows:
– positive terminal to + 12 V battery,
– negative terminal to connection 3JAB of component 1069 or 1550.
Run command AC031.
If the voltmeter indicates the battery voltage (4 ON-OFF cycles of 10 seconds), replace the thermoplunger no. 3
relay.
If the voltmeter does not show the battery voltage (4 ON-OFF cycles of 10 seconds), contact the Techline.
EDC16CP33_V18_AC031 / EDC16CP33_V1C_AC031 / EDC16CP33_V54_AC031 / EDC16CP33_V20_AC031 / EDC16CP33_V58_AC031 /
EDC16CP33_V5C_AC031 / EDC16CP33_V24_AC031 / EDC16CP33_V04_AC031 / EDC16CP33_V08_AC031 / EDC16CP33_V44_AC031 /
EDC16CP33_V4C_AC031 / EDC16CP33_V34_AC031 / EDC16CP33_V38_AC031 / EDC16CP33_V74_AC031 / EDC16CP33_V28_AC031 /
EDC16CP33_V62_AC031 / EDC16CP33_V26_AC031 / EDC16CP33_V60_AC031
EDC16CP33
Program No.: C4
Vdiag No.: 04, 08, 18, 1C,
20, 24, 26, 28, 34, 38, 44,
4C, 54, 58, 5C, 60, 62, 74
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.

13B-443V12 MR-372-J84-13B300$150.mif
DIESEL INJECTION
Fault finding – Interpretation of commands13B
* supplier: Champion: the load resistance is between: 547 mΩ < X < 669 mΩ.
AC031
CONTINUED
If the thermoplunger no. 3 relay or the additional heater interface unit functions using command AC031,
but there is still a passenger compartment heating/demisting problem, use the wiring diagram to check:
– The conformity of the thermoplungers maxi-fuse.
– Check for + 12 V battery feed on connection BP9 of component 1069 or 1550.
– Check the conformity of heating element no. 3 relay.
– Check the continuity of connection 3JAC or 3JC between components 1069 or 1550 and 1074.
– Measure the resistance of the thermoplunger*.
– The presence of earth on the water chamber (thermoplunger mounting).
– Also check the level of the cooling circuit and that there are no leaks.
Carry out the necessary repairs.
EDC16CP33
Program No.: C4
Vdiag No.: 04, 08, 18, 1C,
20, 24, 26, 28, 34, 38, 44,
4C, 54, 58, 5C, 60, 62, 74
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.

13B-444V12 MR-372-J84-13B300$150.mif
DIESEL INJECTION
Fault finding – Interpretation of commands13B
AC037PREHEATING RELAY
NOTESThis command is only run if fault DF025 Preheating unit diagnostic connection or
DF017 Preheating unit control circuit is present or stored and if no other fault is
present.
Use the Wiring Diagram Technical Note, Laguna II ph2, Vel Satis ph2, Espace IV
ph2, Mégane II ph2, Scénic II ph2.
IMPORTANT:
– Please observe the cleanliness guidelines and safety advice.
– Make sure the correct type of plug is fitted on the vehicle, slow or fast:
Slow plugs have a black ring
Quick plugs have a white ring.
For Vdiag 20, 24, 34, 38 and 74, if replacing heater plugs by plugs of a different type
(see Replacement of components and Replacing heater plugs).
Before applying the following fault finding procedure, check that the battery voltage is not below 12 V. Otherwise,
recharge the battery.
STEP 1:
Using a multimeter fitted with a current clamp, bring together the 4 heater plug supply wires.
Run command AC037 and measure the current consumed by the 4 heater plugs.
If the value of the current consumed is not between 60 A and 80 A, move on to step 2, otherwise end of fault
finding.
EDC16CP33_V18_AC037 / EDC16CP33_V1C_AC037 / EDC16CP33_V54_AC037 / EDC16CP33_V20_AC037 / EDC16CP33_V58_AC037 /
EDC16CP33_V5C_AC037 / EDC16CP33_V24_AC037 / EDC16CP33_V04_AC037 / EDC16CP33_V08_AC037 / EDC16CP33_V44_AC037 /
EDC16CP33_V4C_AC037 / EDC16CP33_V34_AC037 / EDC16CP33_V38_AC037 / EDC16CP33_V74_AC037 / EDC16CP33_V28_AC037 /
EDC16CP33_V62_AC037 / EDC16CP33_V26_AC037 / EDC16CP33_V60_AC037
EDC16CP33
Program No.: C4
Vdiag No.: 04, 08, 18, 1C,
20, 24, 26, 28, 34, 38, 44,
4C, 54, 58, 5C, 60, 62, 74
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.

13B-445V12 MR-372-J84-13B300$150.mif
DIESEL INJECTION
Fault finding – Interpretation of commands13B
AC037
CONTINUED
STEP 2:
Check the connections of the preheating unit, component code 257, the heater plugs, component codes 680, 681,
682 and 683 and the injection computer, component code 120.
Measure the resistance of the heater plugs. If the resistance value is > 2 Ω, replace the faulty plug or plugs,
making sure that the correct plug type, slow or fast, is fitted on the vehicle.
Check the continuity and absence of interference resistance of the following connections:
•37AB between components 257 and 683,
•37AA between components 257 and 680,
•37Z between components 257 and 681,
•37AC between components 257 and 682.
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 it.
Check the condition of the preheating unit supply fuse (70 A) (see MR 364 (Mégane II ph2), MR 370 (Scénic II
ph2), MR 395 (Laguna II ph2), 402 (Vel Satis ph2), 405 (Espace IV ph2) Mechanical, 81C, Fuses, Fuses: List
and location of components).
Check the + 12 V battery supply to the preheating unit on the following connection:
•BP35 of component 257.
Check the continuity and absence of interference resistance of the following connections:
•3FY between components120 and 257,
•3FF between components120 and 257.
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 it.
If the fault is still present, replace the preheating unit.
EDC16CP33
Program No.: C4
Vdiag No.: 04, 08, 18, 1C,
20, 24, 26, 28, 34, 38, 44,
4C, 54, 58, 5C, 60, 62, 74
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.

13B-446V12 MR-372-J84-13B300$150.mif
DIESEL INJECTION
Fault finding – Interpretation of commands13B
AC063THERMOPLUNGER No. 1 RELAY
NOTESThere must be no present or stored faults:
Perform this fault finding procedure if there is a fault with the passenger compartment
heating - demisting.
Use the Wiring Diagram Technical Note, Laguna II ph2, Vel Satis ph2, Espace IV
ph2, Mégane II ph2, Scénic II ph2.
If the Thermoplunger no. 1 relay or the additional heater interface unit does not function when command
AC063 is run.
Check the condition of the thermoplunger no. 1 relay mounting connector on the engine fuse box (see Wiring
Diagram Technical Note, Vehicle, component code 1067 or 1550).
Check the condition of the engine management computer connector (see Wiring Diagram Technical Note,
Vehicle, component code 120).
If the connector or connectors 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.
if the fault is still present, check as follows that this relay is controlled by the engine management computer:
Disconnect thermoplunger no. 1 relay, and fit a 50 Ω to 100 Ω resistor on the mounting instead of the coil and
connect a voltmeter as follows:
– positive terminal to + 12 V battery,
– negative terminal to connection 3JA of component 1067 or 1550.
Run command AC063.
If the voltmeter shows the battery voltage (4 ON-OFF cycles of 10 seconds), replace the thermoplunger no. 1
relay.
If the voltmeter does not show the battery voltage (4 ON-OFF cycles of 10 seconds), contact the Techline.
EDC16CP33_V18_AC063 / EDC16CP33_V1C_AC063 / EDC16CP33_V54_AC063 / EDC16CP33_V20_AC063 / EDC16CP33_V58_AC063 /
EDC16CP33_V5C_AC063 / EDC16CP33_V24_AC063 / EDC16CP33_V04_AC063 / EDC16CP33_V08_AC063 / EDC16CP33_V44_AC063 /
EDC16CP33_V4C_AC063 / EDC16CP33_V34_AC063 / EDC16CP33_V38_AC063 / EDC16CP33_V74_AC063 / EDC16CP33_V28_AC063 /
EDC16CP33_V62_AC063 / EDC16CP33_V26_AC063 / EDC16CP33_V60_AC063
EDC16CP33
Program No.: C4
Vdiag No.: 04, 08, 18, 1C,
20, 24, 26, 28, 34, 38, 44,
4C, 54, 58, 5C, 60, 62, 74
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.