2012 RENAULT SCENIC Megane 2

13B-2V12 MR-372-J84-13B300$010.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
1. SCOPE OF THIS DOCUMENT
This document presents the fault finding procedure applicable to all computers with the following specifications:
2. PREREQUISITES FOR FAULT FINDING
Documentation type
Fault finding procedures (this document):
– Assisted fault finding (integrated into the diagnostic tool), Dialogys.
Wiring Diagrams:
–Visu-Schéma.
Type of diagnostic tools
–CLIP
Special tooling required
3. REMINDERS
Procedure
To save energy, the UCH of the vehicle interrupts the + after ignition feed after 3 minutes.
To run fault finding on a computer, it is possible to force the + after ignition feed for 1 hour by applying the
following procedure:
– Press the card unlocking button,
– insert the card in the reader,
– press the start button (interrupting the timed + after ignition feed mode),
– press the start button for more than 5 seconds, until the immobiliser warning light flashes rapidly (4 Hz).
This forced + after ignition feed mode remains active for 1 hour.
Pressing the start button or removing the card from the card reader interrupts the forced + after ignition feed, but
does not interrupt the timed forced + after ignition feed mode. As long as one hour has not elapsed, activating the
+ after ignition feed will restart forced + after ignition feed for the remaining time. Vehicle(s): Laguna II Phase 2 / Vel Satis Phase 2 /
Espace IV Phase 2 / Mégane II phase 2 / Scénic II phase 2Computer name: BOSCH EDC16CP33
Engine: M9R 700 – 721 – 722 – 724 –740 – 750 – 760 – 761
– 762 – 763Program No.: C4
Function concerned: Bosch Diesel InjectionVdiag No.: 04, 08, 18, 1C, 20, 24, 26, 28, 34,
38, 44, 4C, 54, 58, 5C, 60, 62, 74
Special tooling required
Diagnostic tool
Multimeter
Elé. 1681 Universal bornier
EDC16CP33_V18_PRELI / EDC16CP33_V1C_PRELI / EDC16CP33_V54_PRELI / EDC16CP33_V20_PRELI / EDC16CP33_V58_PRELI /
EDC16CP33_V5C_PRELI / EDC16CP33_V24_PRELI / EDC16CP33_V04_PRELI / EDC16CP33_V08_PRELI / EDC16CP33_V44_PRELI /
EDC16CP33_V4C_PRELI / EDC16CP33_V34_PRELI / EDC16CP33_V38_PRELI / EDC16CP33_V74_PRELI / EDC16CP33_V28_PRELI /
EDC16CP33_V62_PRELI/ EDC16CP33_V26_PRELI / EDC16CP33_V60_PRELI
DIESEL INJECTION
Fault finding – Introduction

13B-14V12 MR-372-J84-13B300$030.mif
DIESEL INJECTION
Fault finding – System operation13B
EDC16CP33
Program No.: C4
Vdiag No.: 04, 08, 18, 1C,
20, 24, 26, 28, 34, 38, 44,
4C, 54, 58, 5C, 60, 62, 74
c. Functions hosted:
Air conditioning management assistance:
For vehicles with air conditioning, the EDC16CP33 system provides the option of deactivating the air conditioning
via the UCH, under certain conditions of use:
– when requested by the driver,
– when starting the engine,
– if the engine overheats (in order to reduce the power the engine has to supply),
– when the engine speed is kept at a very high level (to protect the compressor),
– during transition phases (e.g. under heavy acceleration when overtaking, anti-stalling and moving off strategies).
These conditions are only taken into account when they do not occur repeatedly, in order to prevent system
instabilities (erratic deactivations),
– when certain faults appear.
I - Cold loop air conditioning management:
The air conditioning is the cold loop type and its management shared between several computers.
The injection computer is responsible for:
– authorising requests for cold air depending on the engine coolant temperature and the engine speed,
– calculating the power absorbed by the compressor from the refrigerant pressure.
–requesting fan assembly actuation (Mégane II ph2 and Scénic II ph2) and controlling fan assembly actuation
(Laguna II, Vel Satis ph2 and Espace IV ph2), according to the vehicle speed, the refrigerant pressure and the
engine coolant temperature.
The driver requests the air conditioning to be switched on by means of the ventilation selector coupled to a switch.
The cold air request is authorised or denied depending on the pressure measured. If this pressure is outside the
operating limits, the cold loop program is not activated.
The air conditioning system is authorised by the injection computer 2 to 8 seconds after the engine is started.
Management of the thermoplungers:
To improve cold starting, the vehicle is fitted with thermoplungers. These thermoplungers are managed and
controlled by the injection computer, according to the operating phases, primarily to accelerate the increase in
engine coolant temperature.
The maximum number of thermoplungers that can be actuated is four and their actuation depends mainly on the
coolant temperature and the air temperature.
See configuration reading LC056 Thermoplungers: WITH or WITHOUT.
When necessary, they are actuated by the injection system only during particle filter regeneration by means
of a special unit.
The maximum number of thermoplungers that can be managed is four and their activation depends mainly on the
coolant temperature (< 15°C) and air temperature (< 5°C).

13B-25V12 MR-372-J84-13B300$050.mif
DIESEL INJECTION
Fault finding – Replacement of components13B
EDC16CP33
Program No.: C4
Vdiag No.: 04, 08, 18, 1C,
20, 24, 26, 28, 34, 38, 44,
4C, 54, 58, 5C, 60, 62, 74
REPLACING THE INJECTORS
After one or more injectors have been replaced, enter the IMA codes again and then run command SC036
Reinitialise programming.
To do this, record the IMA code(s) etched on the injector bodies, and enter the codes into the computer using
command SC002 Enter injector codes, and follow the instructions given by the diagnostic tool. Run command
SC036 Reinitialise programming and select injectors, then follow the procedure. Note:
The "IMA" code (individual injector correction) is a calibration with corrective values unique to each injector,
and is used to adjust their flow accurately (injector classification). This correction takes into account mechanical
variances and the variances of the piezo actuator. An injector's class is determined by measurements taken at
different pressures on a test bench. The IMA class identification (7-character alphanumeric code) is then
engraved on the collar of the injector.
The IMA codes must be read from left to right:
– Foolproofing for reading the IMA codes is carried out using the low pressure return connector and/or the
electrical connector on the injector.
– This reading direction is valid when these connectors are located to the left of the cotech.
The IMA codes are read from left to right (see illustration in MR 402 (Vel Satis ph2), MR 395 (Laguna II ph2),
MR 364 (Mégane II ph2), MR 370 (Scénic II ph2), MR 405 (Espace IV ph2) Mechanical, 13B Diesel injection,
Diesel injector, Removal – Refitting)
Note: When entering characters, confusion can arise between:
– Figure 1 and the letters I and L,
– Figure 2 and the letter Z,
– Figure 5 and the letter S,
– Figure 6 and the letter G,
– Figure 8 and the letter B.
After programming or reprogramming the computer, it is essential to enter the 4 injector codes before confirming
the entry.
These individual corrective values are then written to the computer EEPROM, which can then control the injectors,
taking into account their manufacturing variation.
IMPORTANT:
Engines can only operate correctly if the correct IMA* codes have been entered. If no code has been
entered, or if an invalid code has been entered, fault DF066 Injector code(s) is present and the engine will
run in defect mode (engine speed limited significantly). If another injector's code has been entered, the
system will accept it but will make the wrong correction. This could lead to engine damage, loss of
performance and excessive pollution.
Always use the correct injector codes for the engine cylinder/computer.
Note:
On the M9R engine (Renault - Nissan partnership engine), cylinder no. 1 is located at the timing end.

13B-31
AFTER REPAIRDeal with any other faults. Clear the fault memory.
Switch off the ignition until the end of the power-latch phase, and carry out a road test
followed by a check with the diagnostic tool.
V12 MR-372-J84-13B300$071.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
DF001
PRESENT
OR
STOREDCOOLANT TEMPERATURE SENSOR CIRCUIT
CC.0: Short circuit to earth
CO.1: Open circuit or short circuit to +12 V
NOTESPriorities when dealing with a number of faults:
– DF046 Battery voltage.
Conditions for applying the fault finding procedure to a stored fault:
If the fault is declared present after:
– the ignition is switched on,
– starting the engine,
– a road test.
Special notes:
If the fault is present:
– the thermoplungers are no longer controlled,
– the coolant temperature: PR064 Coolant temperature is fixed at 119°C (with the
engine running),
– the preheating phase lasts longer than 4 seconds,
– the low-speed fan assembly is continuously supplied,
– the high speed fan assembly is continuously supplied (for Vdiag 20, 24, 58, 5C, 26,
28, 60, 62),
– smoke may be emitted from the exhaust,
– noise may be heard when hot starting.
The level 1 warning light is illuminated.
The EOBD (European On Board Diagnostic) warning light is lit (for Vdiag 20, 24, 58,
5C, 26, 28, 60, 62)
Use bornier Elé.1681 for any operations on the computer connectors.
Use the Wiring Diagram Technical Note, Laguna II ph2, Vel Satis ph2, Espace IV
ph2, Mégane II ph2, Scénic II ph2.
EDC16CP33_V18_DF001 / EDC16CP33_V1C_DF001 / EDC16CP33_V54_DF001 / EDC16CP33_V20_DF001 / EDC16CP33_V58_DF001 /
EDC16CP33_V5C_DF001 / EDC16CP33_V24_DF001 / EDC16CP33_V04_DF001 / EDC16CP33_V08_DF001 / EDC16CP33_V44_DF001 /
EDC16CP33_V4C_DF001 / EDC16CP33_V34_DF001 / EDC16CP33_V38_DF001 / EDC16CP33_V74_DF001 / EDC16CP33_V28_DF001 /
EDC16CP33_V62_DF001/ EDC16CP33_V26_DF001 / EDC16CP33_V60_DF001
DIESEL INJECTION
Fault finding – Interpretation of faults

13B-32
AFTER REPAIRDeal with any other faults. Clear the fault memory.
Switch off the ignition until the end of the power-latch phase, and carry out a road test
followed by a check with the diagnostic tool.
V12 MR-372-J84-13B300$071.mif
DIESEL INJECTION
Fault finding – Interpretation of faults13B
EDC16CP33
Program No.: C4
Vdiag No.: 04, 08, 18, 1C,
20, 24, 26, 28, 34, 38, 44,
4C, 54, 58, 5C, 60, 62, 74
DF001
CONTINUED 1
CC.0NOTESNone.
Check the condition of the coolant temperature sensor connector (see Wiring Diagram Technical Note, Laguna
II ph2, Vel Satis ph2, Espace IV ph2, Mégane II ph2, Scénic II ph2, component code 244).
Check the condition of the engine management computer connector (see Wiring Diagram Technical Note,
Laguna II ph2, Vel Satis ph2, Espace IV ph2, Mégane II ph2, Scénic II ph2, 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.
Measure the resistance between connections 3C and 3JK of component 244.
If the resistance is less than 87 Ω, replace the sensor
Check the insulation to earth of the following connections:
•3C and 3JK between components 120 and 244.
If the connection or connections are faulty and if there is a repair method (see Technical Note 6015A, Electrical
wiring repair, Wiring: Precautions for repair), repair the wiring, otherwise replace the wiring.
If the fault is still present, contact the Techline.

13B-33
AFTER REPAIRDeal with any other faults. Clear the fault memory.
Switch off the ignition until the end of the power-latch phase, and carry out a road test
followed by a check with the diagnostic tool.
V12 MR-372-J84-13B300$071.mif
DIESEL INJECTION
Fault finding – Interpretation of faults13B
EDC16CP33
Program No.: C4
Vdiag No.: 04, 08, 18, 1C,
20, 24, 26, 28, 34, 38, 44,
4C, 54, 58, 5C, 60, 62, 74
DF001
CONTINUED 2
CO.1NOTESNone.
Check the condition of the coolant temperature sensor connector (see Wiring Diagram Technical Note, Laguna
II ph2, Vel Satis ph2, Espace IV ph2, Mégane II ph2, Scénic II ph2, component code 244).
Check the condition of the engine management computer connector (see Wiring Diagram Technical Note,
Laguna II ph2, Vel Satis ph2, Espace IV ph2, Mégane II ph2, Scénic II ph2, 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.
Measure the resistance between connections 3C and 3JK of component 244.
If the resistance is greater than 83 kΩ, replace the sensor
Check the insulation from + 12 V of the following connections:
•3C and 3JK between components 120 and 244.
Check the continuity of the following connections:
•3C between components 120 and 244,
•3JK between components 120 and 244.
If the connection or connections are faulty and if there is a repair method (see Technical Note 6015A, Electrical
wiring repair, Wiring: Precautions for repair), repair the wiring, otherwise replace the wiring.
If the fault is still present, contact the Techline.

13B-34
AFTER REPAIRDeal with any other faults. Clear the fault memory.
Switch off the ignition until the end of the power-latch phase, and carry out a road test
followed by a check with the diagnostic tool.
V12 MR-372-J84-13B300$071.mif
DIESEL INJECTION
Fault finding – Interpretation of faults13B
EDC16CP33
Program No.: C4
Vdiag No.: 04, 08, 18, 1C,
20, 24, 26, 28, 34, 38, 44,
4C, 54, 58, 5C, 60, 62, 74
DF002
PRESENT
OR
STOREDAIR TEMPERATURE SENSOR CIRCUIT
CC.0: Short circuit to earth
CO.1: Open circuit or short circuit to +12 V
NOTESPriorities when dealing with a number of faults:
– DF046 Battery voltage.
Conditions for applying the fault finding procedure to a stored fault:
If the fault is declared present after:
– the ignition is switched on,
– starting the engine,
– a road test.
Special notes:
If the fault is present:
–The EOBD (European On Board Diagnostic) warning light is lit.
– the thermoplungers are inhibited,
– the inlet air temperature is in defect mode, PR059 Inlet air temperature = 20°C (with
the engine running).
The air temperature sensor is integrated into the air flowmeter.
Use bornier Elé. 1681 for all operations on the engine management computer
connectors.
Use the Wiring Diagram Technical Note, Laguna II ph2, Vel Satis ph2, Espace IV
ph2, Mégane II ph2, Scénic II ph2.
EDC16CP33_V18_DF002 / EDC16CP33_V1C_DF002 / EDC16CP33_V54_DF002 / EDC16CP33_V20_DF002 / EDC16CP33_V58_DF002 /
EDC16CP33_V5C_DF002 / EDC16CP33_V24_DF002 / EDC16CP33_V04_DF002 / EDC16CP33_V08_DF002 / EDC16CP33_V44_DF002 /
EDC16CP33_V4C_DF002 / EDC16CP33_V34_DF002 / EDC16CP33_V38_DF002 / EDC16CP33_V74_DF002 / EDC16CP33_V28_DF002 /
EDC16CP33_V62_DF002/ EDC16CP33_V26_DF002 / EDC16CP33_V60_DF002

13B-35
AFTER REPAIRDeal with any other faults. Clear the fault memory.
Switch off the ignition until the end of the power-latch phase, and carry out a road test
followed by a check with the diagnostic tool.
V12 MR-372-J84-13B300$071.mif
DIESEL INJECTION
Fault finding – Interpretation of faults13B
EDC16CP33
Program No.: C4
Vdiag No.: 04, 08, 18, 1C,
20, 24, 26, 28, 34, 38, 44,
4C, 54, 58, 5C, 60, 62, 74
DF002
CONTINUED 1
CC.0NOTESNone.
Check the condition of the air flowmeter connector (see Wiring Diagram Technical Note, Laguna II ph2, Vel
Satis ph2, Espace IV ph2, Mégane II ph2, Scénic II ph2, component code 799).
Check the condition of the engine management computer connector (see Wiring Diagram Technical Note,
Laguna II ph2, Vel Satis ph2, Espace IV ph2, Mégane II ph2, Scénic II ph2, 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.
Measure the resistance between connections 3ABQ and 3DW of component 799.
If the resistance is less than 87 Ω,replace the air flowmeter
With the flowmeter disconnected, check the insulation to earth of the following connections:
•3ABQ and 3DW, between components 120 and 799.
If the connection or connections are faulty and if there is a repair method (see Technical Note 6015A, Electrical
wiring repair, Wiring: Precautions for repair), repair the wiring, otherwise replace the wiring.
If the fault is still present, contact the Techline.