2011 RENAULT SCENIC ABS

13B - 181
DIESEL INJECTION
Fault finding - Parameter summary table13B
V10 MR-372-J84-13B150$611.mif
EDC16 INJECTION
Program No.: C1
Vdiag No.: 44, 48 and 4C
Tool parameter Diagnostic tool title
PR061Exterior air temperature
PR063Fuel temperature
PR064Coolant temperature
PR071Computer feed voltage
PR073Air flowmeter feed voltage
PR076Refrigerant sensor voltage
PR077EGR valve position sensor voltage
PR079Atmospheric pressure sensor voltage
PR080Rail pressure sensor voltage
PR081Inlet temperature sensor voltage
PR082Fuel pressure sensor voltage
PR084Coolant temperature sensor voltage
PR089Vehicle speed
PR125Power absorbed by the air conditioning compressor *
PR128First EGR valve offset
PR129Last EGR valve offset
PR130Cruise control setpoint
PR131EGR air flow variation
PR132Air flow
PR146Inlet air flow
PR147Pedal potentiometer voltage gang 1
PR148Pedal potentiometer voltage gang 2
PR157Fuel flow setpoint
PR171Air flow setpoint for EGR
PR190Engine idle speed setpoint.
PR213Rail pressure loop difference
PR358Sensor reference voltage
PR364Cylinder no. 1 fuel flow correction
PR365Cylinder no. 4 fuel flow correction
PR405Cylinder no. 2 fuel flow correction
PR406Cylinder no. 3 fuel flow correction
* AC: Air conditioning

13B - 183
DIESEL INJECTION
Fault finding - Interpretation of parameters13B
V10 MR-372-J84-13B150$658.mif
EDC16 INJECTION
Program No.: C1
Vdiag No: 44, 48 and 4C
PR037
REFRIGERANT PRESSURE
NOTESThere must be no present or stored faults.
Perform this fault finding procedure after an inconsistency is displayed in the
Parameters menu or after a customer complaint (no air conditioning, etc.).
Step 1
– Start the engine, switch on the air conditioning and increase the engine speed to 1,500 rpm:
– Display PR037 Refrigerant pressure in the Cold loop function on the diagnostic tool:
If the pressure is greater than ~27bar, go to step 2.
If the pressure does not rise, or remains below normal:
– Ensure that the air conditioning compressor and the relay are operating correctly.
– Check the conformity of the refrigerant pressure sensor by comparing* the value displayed by the tool (PR192)
with the reading given by the charging station high pressure gauge.
If the pressure difference = ±1.5bar, (or 1500 mbar):
Check the continuity and the absence of interference resistance on the connections between:
Injection computer, grey 24-track connector C,
track C3Track A of the refrigerant pressure sensor
Injection computer, brown 48-track connector
B, track F1Track C of the refrigerant pressure sensor
Injection computer, brown 48-track connector
B, track F3Track B of the refrigerant pressure sensor
If these connections are not faulty, replace the refrigerant pressure sensor.
If there is no difference, the refrigerant pressure sensor is correct: go to step 2.
Step 2
– Perform fault finding on the air conditioning.
*Note:
The diagnostic tool displays the absolute pressure, the charging station high pressure gauge displays the relative
pressure.
The normal difference between the two is equal to atmospheric pressure, i.e. ~1,000mbar.
AFTER REPAIRRepeat the conformity check from the start.
EDC16_V44_PR037/EDC16_V48_PR037/EDC16_V4C_PR037

13B - 184
DIESEL INJECTION
Fault finding - Interpretation of parameters13B
V10 MR-372-J84-13B150$658.mif
EDC16 INJECTION
Program No.: C1
Vdiag No: 44, 48 and 4C
PR038
RAIL PRESSURE
NOTESPerform this fault finding procedure:
– after the interpretation of fault DF053 Rail pressure regulation function,
– after an inconsistency for PR038 noted in the Parameters menu,
– after the interpretation of the fault finding procedure for AC011 Rail pressure
regulator,
– following a customer complaint (starting faults, poor performance, stalling, etc.).
Check the continuity and the absence of interference resistance on the following connections:
Injection computer, brown 48-track connector
B, track G3Track 2 of the rail pressure sensor connector
Injection computer brown 48-track
connector B, track A4Track 3 of the rail pressure sensor connector
Injection computer, brown 48-track connector
B, track C4Track 1 of the rail pressure sensor connector
If all these connections are correct, check for fuel pressure sensor power supply:
+ 5 V Track 3 of the rail pressure sensor connector
Earth Track 1 of the rail pressure sensor connector
Repair if necessary.
Check the sealing of the low and high-pressure diesel circuits (visual inspections, odour) pump housing,
overpressure valve, pipes, rail and injector unions, injector wells, etc.
If all of the previous checks are correct, switch the ignition on, wait for more than 1 minute and display PR038 Rail
pressure.
If the value is less than 50 bar, the rail pressure sensor is correct. If it is greater than this value, replace the rail
pressure sensor and tighten it to 35 ± 5 Nm.
AFTER REPAIRRepeat the conformity check from the start.
EDC16_V44_PR038/EDC16_V48_PR038/EDC16_V4C_PR038

13B - 186
DIESEL INJECTION
Fault finding - Interpretation of parameters13B
V10 MR-372-J84-13B150$658.mif
EDC16 INJECTION
Program No.: C1
Vdiag No: 44, 48 and 4C
PR063
FUEL TEMPERATURE
NOTESThere must be no present or stored faults.
NOTE
In the event of a relatively low outside temperature, the difference between the
fuel temperature and the engine temperature after cold starting may be greater
than 30 °C.
Check in the Fuel circuit tab in PR063 Fuel temperature that the value displayed is not the recovery value 100 °C.
If it is, check the fuel temperature sensor:
Check that the fuel temperature sensor is in good condition:
Repair if necessary.
Check the continuity and the absence of interference resistance on the following lines:
Brown 48-track connector B, track H2 Track 1 fuel temperature sensor
Grey 32-track connector C, track F1 Track 2 fuel temperature sensor
If the temperature read is inconsistent, check that the sensor follows the resistance as a function of temperature
calibration curve (NTC) correctly.
Replace the fuel pressure and temperature sensor if the resistance is not:
2,051 ± 123Ω at 25 °C
810 ± 47Ω at 50 °C
309 ± 17Ω at 80 °C
Replace the fuel temperature sensor if it is incorrect (an incorrect sensor is often the result of an electric shock).
AFTER REPAIRRepeat the conformity check from the start.
EDC16_V44_PR063/EDC16_V48_PR063/EDC16_V4C_PR063

13B - 187
DIESEL INJECTION
Fault finding - Interpretation of parameters13B
V10 MR-372-J84-13B150$658.mif
EDC16 INJECTION
Program No.: C1
Vdiag No: 44, 48 and 4C
PR064
COOLANT TEMPERATURE
NOTESNo fault should be present or stored:
Perform this fault finding procedure after noting an inconsistency in the Parameters
menu.
Display the PR064 Coolant temperature and check that the value displayed is not recovery value -30°C.
If this is the case, check the coolant temperature sensor:
Check the condition of the coolant temperature sensor connections.
Repair if necessary.
Check for the absence of interference resistance on the following lines:
Brown 48-track connector B, track F2 Track 3 coolant temperature sensor
Brown 48-track connector B, track H1 Track 2 coolant temperature sensor
If the temperature read is inconsistent, check that the sensor follows the resistance as a function of temperature
calibration curve (NTC) correctly.
Replace the air temperature and pressure sensor if the resistance is not:
2,252Ω ± 112Ω at 25 °C
811Ω ±39Ω at 50 °C
283Ω ±8Ω at 80 °C
Replace the coolant temperature sensor if the values read do not correspond to the ones above.
AFTER REPAIRRepeat the conformity check from the start.
EDC16_V44_PR064/EDC16_V48_PR064/EDC16_V4C_PR064

13B - 194
DIESEL INJECTION
Fault finding - Interpretation of commands13B
V10 MR-372-J84-13B150$752.mif
EDC16 INJECTION
Program No.: C1
Vdiag No: 44, 48 and 4C
AC001
PREHEATING UNIT
NOTESThis command is only carried out if fault DF025 Preheating unit fault finding
connection or DF081 Preheating relay circuit is present or stored and if no other
fault is present.
Refer to the Wiring diagrams Technical Note for the vehicle to locate the fuses and
relays concerned.
Connect the diagnostic tool and turn on the ignition.
With the preheating unit connected:
– connect the negative terminal of the voltmeter to track 8 of the preheating unit,
– connect the positive terminal of the voltmeter to the + 12 V battery,
– run command AC001 Preheating unit.
if the voltmeter does not indicate the battery voltage while the command is running (ten one-second ON/OFF
cycles), contact the Techline:
1. Check the condition of theF01 (70A) fuse which supplies the preheating unit. Replace it if necessary.
2. Check the continuity and the absence of interference resistance on the following connections:
Injection computer connector C, track E2 Track 8 of the preheating unit connector
Injection computer connector C, track A4 Track 9 of the pre-postheating unit connector
Repair if necessary.
3. Check the connections on the preheating unit, heater plugs and injection computer.
Repair if necessary.
4 Measure the resistance of the heater plugs. If the resistance is greater than 2Ω replace the faulty plug(s).
5. Check the continuity and the absence of interference resistance between:
– preheating unit track 1Heater plug for cylinder 3
– preheating unit track 2Heater plug for cylinder 4
– preheating unit track 6Heater plug for cylinder 1
– preheating unit track 7Heater plug for cylinder 2
6. Then check for +12V on track 3 of the preheating relay connector.
If the fault is still present, replace the preheating unit.
AFTER REPAIRRestart the conformity check from the beginning.
EDC16_V44_AC001/EDC16_V48_AC001/EDC16_V4C_AC001

13B - 195
DIESEL INJECTION
Fault finding - Interpretation of commands13B
V10 MR-372-J84-13B150$752.mif
EDC16 INJECTION
Program No.: C1
Vdiag No: 44, 48 and 4C
AC002
EGR SOLENOID VALVE
NOTESThis command enables the exhaust gas recirculation valve function to be checked.
Measure the resistance of the exhaust gas recirculation valve between tracks 1 and 5.
– If the resistance is not: 8 Ω ± 0.5 at 20 °C, replace the EGR valve.
Check the continuity and the absence of interference resistance of the following connections:
Injection computer brown 48-track connector B track L2 track 5 of the EGR solenoid valve connector
+ 12 V (UPC)track 1 of the EGR solenoid valve connector
Step 1: Mechanical check of EGR valve:
Remove the exhaust gas recirculation valve.
Run command AC002 EGR solenoid valve.
If, during the command:
– no valve movement is evident,
– the valve does not open or close completely,
Check that there are no particles blocking the movement of the piston.
If a particle was blocking the movement of the valve, run command AC002 EGR solenoid valve again and check
the valve is operating correctly.
If the valve is operating normally, run command RZ002 EGR Adaptives to reinitialise the valve operating values.
If the valve is jammed or irrevocably seized, replace the EGR valve.
AFTER REPAIRRestart the conformity check from the beginning.
EDC16_V44_AC002/EDC16_V48_AC002/EDC16_V4C_AC002

13B - 197
DIESEL INJECTION
Fault finding - Interpretation of commands13B
V10 MR-372-J84-13B150$752.mif
EDC16 INJECTION
Program No.: C1
Vdiag No: 44, 48 and 4C
AC004
TURBOCHARGING SOLENOID VALVE
NOTESThis command is run if a fault is detected in the turbocharging circuit.
This command checks that the turbocharger and the control circuit are working properly.
Introduction
1 - Check the sealing of the high-pressure air circuit:
Pipe not joined or pierced, pressure sensor disconnected or poorly fitted (seal present), intercooler pierced.
To test the intercooler: stabilise the engine speed between 3,500 and 4,000 rpm with the vehicle stopped and
check that there are no leaks.
Check the resistance of the turbocharging limitation solenoid valve between tracks 1 and 2:
Replace the solenoid valve if the resistance is not: 15.4 Ω ± 0.7 at 20 °C.
Check the injection computer connections.
Check for continuity and the absence of interference resistance on the following connection:
Injection computer grey 32-track connector C, track E1 Track 1 turbocharging solenoid valve
Repair if necessary.
Check for the presence of +12V after relay on track 2 of the turbocharging solenoid valve.
2 - Turbocharger control circuit check
– With the engine stopped, make sure that the control rod is in the rest position.
– Start the engine and make sure that the control rod operates to the high stop.
(when the engine is switched off, the control rod should return to the idle position)
If the control rod does not move correctly, carry out the following checks:
1) Vacuum pressure command check:
– Disconnect the solenoid valve inlet hose and connect it to a pressure gauge.
– Start the engine and run it at a stable idle speed.
– If the vacuum pressure does not reach 800 mbar ± 100: check the vacuum pressure circuit from the vacuum
pump.
– Stop the engine, reconnect the inlet hoses and go to step no. 2.
2) Solenoid valve control check:
– Disconnect the solenoid valve outlet hose.
– Start the engine and run it at a stable idle speed.
– Place your hand on the solenoid valve and block the outlet union with your thumb.
– If you notice no solenoid valve vibration, check the operation of the computer output (step 5).
3) Solenoid valve operation check:
– Connect the pressure gauge to the solenoid valve outlet union.
– Start the engine and run it at a stable idle speed.
If the vacuum pressure does not reach 800 mbar ± 100, replace the solenoid valve.
AFTER REPAIRRestart the conformity check from the beginning.
EDC16_V44_AC004/EDC16_V48_AC004/EDC16_V4C_AC004