2012 RENAULT SCENIC thermoplunger

13B-269V12 MR-372-J84-13B300$101.mif
DIESEL INJECTION
Fault finding – Interpretation of statuses13B
ET024
ET025
ET026THERMOPLUNGER NO. 1 REQUESTTHERMOPLUNGER NO. 2 REQUEST
THERMOPLUNGER NO. 3 REQUEST
STATUS
DEFINITIONACTIVE: These statuses indicate that the thermoplungers are active.
INACTIVE: These statuses indicate that the thermoplungers are inactive.
Conformity check with engine stopped and ignition on, or engine running, and engine coolant
temperature > 80°C
"INACTIVE"Statuses ET024, ET025, and ET026 are INACTIVE when the ignition is switched on
with the engine stopped, or when the engine is warm.
"ACTIVE"Statuses ET024, ET025, and ET026 are ACTIVE when:
– the engine has been started,
– and the engine coolant temperature is low (< 15°C),
– and the air temperature is low (< 5°C).
This strategy allows the engine coolant to be heated and to allow the heating of the
passenger compartment.
To control the operation of the thermoplunger relays, run the following commands:
– AC063 Thermoplunger no. 1 relay,
– AC064 Thermoplunger no. 2 relay,
– AC031 Thermoplunger no. 3 relay.
In the event of a fault, refer to the interpretation of faults:
– DF032 Thermoplunger no. 1 relay control circuit,
– DF033 Thermoplunger no. 2 relay control circuit,
– DF034 Thermoplunger no. 3 relay control circuit.
EDC16CP33_V18_ET024 / EDC16CP33_V18_ET025 / EDC16CP33_V18_ET026 / EDC16CP33_V1C_ET024 / EDC16CP33_V1C_ET025 /
EDC16CP33_V1C_ET026 / EDC16CP33_V54_ET024 / EDC16CP33_V54_ET025 / EDC16CP33_V54_ET026 / EDC16CP33_V20_ET024 /
EDC16CP33_V20_ET025 / EDC16CP33_V20_ET026 / EDC16CP33_V58_ET024 / EDC16CP33_V58_ET025 / EDC16CP33_V58_ET026 /
EDC16CP33_V5C_ET024 / EDC16CP33_V5C_ET025 / EDC16CP33_V5C_ET026 / EDC16CP33_V24_ET024 / EDC16CP33_V24_ET025 /
EDC16CP33_V24_ET026 / EDC16CP33_V28_ET024 / EDC16CP33_V28_ET025 / EDC16CP33_V28_ET026 / EDC16CP33_V62_ET024 /
EDC16CP33_V62_ET025 / EDC16CP33_V62_ET026 / EDC16CP33_V26_ET024 / EDC16CP33_V60_ET024 / EDC16CP33_V26_ET025 /
EDC16CP33_V60_ET025 / EDC16CP33_V26_ET026 / EDC16CP33_V60_ET026
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
EDC16CP33
Program No.: C4
Vdiag No.: 18, 1C, 20, 24,
26, 28, 54, 58, 5C, 60, 62

13B-292V12 MR-372-J84-13B300$101.mif
DIESEL INJECTION
Fault finding – Interpretation of statuses13B
Only for Laguna II ph2 without a particle filter
ET205
ET206
ET207THERMOPLUNGER 1 RELAY CONTROLTHERMOPLUNGER 2 RELAY CONTROL
THERMOPLUNGER 3 RELAY CONTROL
STATUS
DEFINITIONACTIVE: This status indicates that the thermoplunger is supplied.
INACTIVE: This status indicates that the thermoplunger is not supplied.
NOTESNone.
"INACTIVE"Statuses ET205, ET206, ET207 are INACTIVE when the ignition is switched on
and the engine stopped, or when the engine is warm.
"ACTIVE"Statuses ET205, ET206 and ET207 are ACTIVE when the engine is started, the
engine coolant temperature is low (<15°C) and the air temperature is low (<5°).
This program allows the engine coolant to be heated to enable the passenger
compartment to be heated.
The thermoplungers also act both to load the engine to improve regeneration of
the particle filter.
To control the operation of the thermoplunger relays, run the following commands:
– AC063 Thermoplunger no.1 relay,
– AC064 Thermoplunger no. 2 relay,
– AC031 Thermoplunger no.3 relay.
In the event of a fault, refer to the interpretation of faults:
– DF034 "Thermoplunger 3 relay control circuit",
– DF033 "Heating element 2 relay control circuit",
– DF032 Thermoplunger 1 relay control circuit.
EDC16CP33_V04_ET205 / EDC16CP33_V04_ET206 / EDC16CP33_V04_ET207 / EDC16CP33_V08_ET205 / EDC16CP33_V08_ET206 /
EDC16CP33_V08_ET207 / EDC16CP33_V44_ET205 / EDC16CP33_V44_ET206 / EDC16CP33_V44_ET207 / EDC16CP33_V4C_ET205 /
EDC16CP33_V4C_ET206 / EDC16CP33_V4C_ET207 / EDC16CP33_V34_ET205 / EDC16CP33_V34_ET206 / EDC16CP33_V34_ET207 /
EDC16CP33_V38_ET205 / EDC16CP33_V38_ET206 / EDC16CP33_V38_ET207 / EDC16CP33_V74_ET205 / EDC16CP33_V74_ET206 /
EDC16CP33_V74_ET207
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
EDC16CP33
Program No.: C4
Vdiag No.: 04, 08, 34, 38,
44, 4C, 74

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-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-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.

13B-447V12 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.
AC063
CONTINUED
If the Thermoplunger no. 1 relay or the additional heater interface unit functions using command AC063,
but there is still a passenger compartment heating/demisting problem, check using the wiring diagram:
The conformity of the thermoplunger maxi-fuse.
Check for + 12 V battery on connection BP9 of component 1067 or 1550.
Check the conformity of the thermoplunger no. 1 relay or the additional heater interface unit.
Check the continuity of connection 3JB between components 1067 or 1550 and 998.
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-448V12 MR-372-J84-13B300$150.mif
DIESEL INJECTION
Fault finding – Interpretation of commands13B
AC064THERMOPLUNGER No. 2 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.
Consult the "Wiring diagrams" Technical Note to locate the relevant fuses and relays.
Special notes:
The thermoplunger no. 2 relay or the additional heater interface unit supplies
thermoplungers 2 and 3 in parallel.
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. 2 relay does not operate during command AC064.
Check the condition of the thermoplunger 2 relay mounting on the engine fuse box or the additional heater
interface unit (see Wiring Diagram Technical Note, Vehicle, component code 1068 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 the thermoplunger no. 2 relay, fit a 50 Ω to 100 Ω resistor on its mounting instead of the coil, and
connect a voltmeter as follows:
– positive terminal to + 12 V battery,
– negative terminal on connection 3JAA of component 1068 or 1550.
Run command AC064.
If the voltmeter shows the battery voltage (4 ON-OFF cycles of 10 seconds), replace the thermoplunger no. 2
relay.
If the voltmeter does not show the battery voltage (4 ON-OFF cycles of 10 seconds), contact the Techline.
EDC16CP33_V18_AC064 / EDC16CP33_V1C_AC064 / EDC16CP33_V54_AC064 / EDC16CP33_V20_AC064 / EDC16CP33_V58_AC064 /
EDC16CP33_V5C_AC064 / EDC16CP33_V24_AC064 / EDC16CP33_V04_AC064 / EDC16CP33_V08_AC064 / EDC16CP33_V44_AC064 /
EDC16CP33_V4C_AC064 / EDC16CP33_V34_AC064 / EDC16CP33_V38_AC064 / EDC16CP33_V74_AC064 / EDC16CP33_V28_AC064 /
EDC16CP33_V62_AC064 / EDC16CP33_V26_AC064 / EDC16CP33_V60_AC064
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.