brake RENAULT SCENIC 2009 J84 / 2.G Engine And Peripherals EDC16 Workshop Manual

DIESEL INJECTION
Fault finding – System operation13B
13B - 13V3 MR-372-J84-13B250$135.mif
EDC16
PROGRAM No: C1
Vdiag No.: 51
Passenger Compartment Heating Resistor Management:
In order to reduce the time required to heat up the passenger compartment, the vehicle is fitted with Passenger
Compartment Heating resistors (RCH). These passenger compartment heating resistors are run and controlled by
the UCH. The injection computer authorises or prohibits the operation of the passenger compartment heating
resistors according to the operating phases and engine power needs.
Cruise control/speed limiter management:
The vehicle cruise control function, when activated, allows you to keep the vehicle speed at a selected value
regardless of the driving conditions encountered.
Using the control buttons, the driver can increase or reduce the speed of the vehicle.
If the driver wishes to exceed the cruising speed, he may:
–depress the accelerator pedal and exceed the cruising speed (the vehicle will return to the initial cruising speed
once the driver takes his foot off the pedal),
–press the system control buttons.
The cruise control function can be deselected either by:
–the system control buttons,
–deactivating the cruise control switch,
–when system events are detected, such as the brake pedal or clutch being depressed,
–when system errors are detected such as an inconsistent vehicle speed.
The cruise function can also be temporarily disabled when the driver wants to increase speed by depressing the
accelerator pedal. The cruising speed is resumed when the driver releases the accelerator pedal.
The vehicle will then attempt to reach the cruising speed at a controlled acceleration rate.
It is possible to reactivate the vehicle speed control and resume the last cruising speed after deactivation (computer
supply not cut off).
When activated (using the selection switch) the vehicle speed limiter function limits the vehicle speed to a
preselected value. The driver controls the vehicle in the normal way using the accelerator pedal until the limit speed
is reached.
If an attempt is made to exceed this speed, the system ignores the pedal request and controls the vehicle speed in
the same way as the cruise control function, provided that the driver keeps the accelerator pedal sufficiently
depressed.
Like the cruise control function, the limit speed can be modified by pressing or pressing and holding the control
buttons.
For safety reasons, it is possible to exceed the limit speed by depressing the accelerator pedal and exceeding the
pedal position limit value. The vehicle speed is then totally controlled as a function of pedal position until the speed
falls back below the limit speed when the speed limiter function will once again be reactivated.
If the driver wishes to exceed the cruising speed, he may:
–exceed the accelerator pedal's kickdown point,
–increase the limit speed by pressing or pressing and holding the limit speed switch.
The speed limiter function can be deselected either:
–the system control buttons,
–by switching off the speed limiter switch,
–when system events are detected, such as the brake pedal or clutch being depressed,
–when system errors are detected such as an inconsistent vehicle speed.

DIESEL INJECTION
Fault finding – Allocation of computer tracks13B
13B - 17V3 MR-372-J84-13B250$180.mif
EDC16
PROGRAM No: C1
Vdiag No.: 51DIESEL INJECTION
Fault finding – Allocation of computer tracks
1 - black connector A, 32 tracks 1 - black connector A, 32 tracks (continued)
Track Description
A1Not used
A2Cruise control on/off switch
A3Passenger compartment L1 multiplex
line network signal
A4Passenger compartment H1 multiplex
line network signal
B1Air conditioning inhibition control
B2Engine speed signal
B3Not used
B4K line diagnostic socket output
C1Not used
C2Not used
C3Speed limiter on/off switch
C4Clutch contact input
D1Protection and Switching Unit supply
(+ after ignition feed)
D2Cruise control programming control
D3Cruise control programming feedback
signal
D4Fuel flow signal
E1Not used
E2Air conditioning cycle control
E3Not used
E4Normally-closed brake switch input
F1Not used
F2Accelerator potentiometer load 2
supply
F3Accelerator potentiometer load 2 signal
F4Accelerator potentiometer load 2 earth
Track Description
G1Protection and Switching Unit supply
(+ BAT 1 after relay)
G2Accelerator potentiometer load 1
supply
G3Not used
G4Battery earth
H1Battery earth
H2Accelerator potentiometer load 1 signal
H3Accelerator potentiometer load 1 earth
H4Battery earth
MR-372-J84-13B250$180.mif

DIESEL INJECTION
Fault finding – Fault summary table13B
13B-27V3 MR-372-J84-13B250$270.mif
EDC16
PROGRAM No.: C1
Vdiag No.: 51
Tool
faultDIAGNOSTIC
TOOL
DESCRIPTIONAssociated
DTCLEVEL 1 FAULT
WARNING
LIGHT (Orange
heater plugs On
indicator light)LEVEL 2 FAULT
WARNING
LIGHT (Red
overheating
warning light)NO
FAULT
WARNING
LIGHT ONOBD
WARNING
LIGHT ON
DF038Computer 6066.DEF/8.DEF/
12.DEF1.DEF/2.DEF/
3.DEF/4.DEF/
5.DEF/7.DEF/
10.DEF/11.DEF/
13.DEF/14.DEF... 6.DEF
DF039Inlet air
temperature
sensor circuit110 ... CC.0/CO.1 ... ...
DF040Cylinder 1
injector circuit201 CO CC.1/CC/1.DEF ... CO
DF041Cylinder 2
injector circuit202 CO CC.1/CC/1.DEF ... CO
DF042Cylinder 3
injector circuit203 CO CC.1/CC/1.DEF ... CO
DF043Cylinder 4
injector circuit204 CO CC.1/CC/1.DEF ... CO
DF046Battery voltage 560 ... ...1.DEF/
2.DEF...
DF047Computer feed
voltage615 ... ... 1.DEF ...
DF049Refrigerant
sensor circuit530 ... ... CC.1/CO.0 ...
DF050Brake switch
circuit571 ... ...1.DEF/
2.DEF...
DF051Cruise control/
speed limiter
function575 ... ...1.DEF/
2.DEF/
3.DEF...
DF053Rail pressure
regulation
function89 3.DEFCC.0/CC.1/CO/
1.DEF/2.DEF/
4.DEF/5.DEF/
6.DEF/7.DEF... ..
DF054Turbocharging
solenoid valve
control circuit33CO/CC.0/CC.1/
1.DEF/2.DEF/
3.DEF/4.DEF/
5.DEF... ... CC.0

DIESEL INJECTION
Fault finding – Interpretation of faults13B
13B-42V3 MR-372-J84-13B250$315.mif
EDC16
PROGRAM No.: C1
Vdiag No.: 51
DF008
CONTINUED 3
2.DEF
NOTESThe brake pedal has been depressed while the accelerator
is depressed and jammed.
Check the brake light switch.
This is a test procedure designed to detect an accelerator pedal that is jammed in the depressed position. It
monitors the accelerator pedal in relation to the brake pedal.
If the test procedure detects depression of the brake pedal over 600 ms, it registers a fault which is stored in the
computer. While this fault is present (both pedals depressed simultaneously) the engine switches to limp home
mode and the engine speed is set at 1,400 rpm.
Once the fault is no longer present (e.g. brake and accelerator pedals released) safe mode is deactivated and the
engine immediately regains its ability to respond to speed/torque requests.
This fault may occur even if the accelerator pedal is not jammed, if there is driver error during use:
- "Heel-and-toe" type driving,
- Vehicle with driving school option,
The procedure in this case should be to clear the fault and take another reading.
If the fault is still present, check the mechanical condition of the accelerator pedal:
–locked in full load position,
–with the pedal blocked by an external component.
Repair if necessary.
Vary the position of the pedal and refer to the conformity check in order to check the operating values of the
accelerator pedal potentiometer.
If the values displayed are inconsistent, replace the accelerator pedal potentiometer.
AFTER REPAIRDeal with any faults.
Carry out a road test followed by another check with the diagnostic tool.

DIESEL INJECTION
Fault finding – Interpretation of faults13B
13B-75V3 MR-372-J84-13B250$360.mif
EDC16
PROGRAM No.: C1
Vdiag No.: 51
DF050
PRESENT
OR
STOREDBRAKE SWITCH CIRCUIT
1.DEF : Open circuit or short circuit
2.DEF : Inconsistent signal
NOTESConditions for applying the fault finding procedure to a stored fault:
The fault is declared present after the brake pedal is depressed, or during a road test.
Special notes:
If the fault is present, the cruise control/speed limiter is deactivated.
Use bornier Ele. 1681 or Ele. 1590 for any operation on the injection computer
connectors.
WARNING
This fault may appear if the wiring harness has been damaged.
Follow the procedure described in the Wiring Check in the Introduction.
This check enables the condition and the conformity of the engine wiring harness to be checked.
1.DEF
NOTESNone
Check the brake pedal switch connections.
Check the condition and adjustment of the brake pedal switch.
Repair if necessary.
Check the conformity of the brake light switch:
Brake pedal released:continuity between tracks 3 and 4
infinite resistance between tracks 1 and 2
Brake pedal depressed:infinite resistance between tracks 3 and 4
continuity between tracks 1 and 2.
AFTER REPAIRDeal with any faults.
Carry out a road test followed by another check with the diagnostic tool.
EDC16_V51_DF050

DIESEL INJECTION
Fault finding – Interpretation of faults13B
13B-76V3 MR-372-J84-13B250$360.mif
EDC16
PROGRAM No.: C1
Vdiag No.: 51
DF050
CONTINUED
Replace the switch if necessary.
Check the condition of fuse H 15A on the passenger compartment fuse and relay plate.
Replace the fuse if necessary.
Check the feeds to the switch:
+ 12 V after ignitiontrack 2 of the brake pedal switch connector
+ 12 V battery feedtrack 4 of the brake pedal switch connector
(via the UCH)
Replace the switch if necessary.
Check the continuity and insulation of the following connections:
Injection computer black 32-track
connector A, track E4Track 3 of the brake pedal switch connector
Repair if necessary.
2.DEF
NOTESNone
Check the brake pedal switch connections.
Check the condition and adjustment of the brake pedal switch.
Repair if necessary.
Check the continuity and the absence of interference resistance on the following connection:
Injection computer black 32-track connector A
track E4Track 3 of the brake switch
Repair if necessary.
Check the conformity of the switch by consulting the interpretation of statuses ET704 Brake switch no. 1 and
ET705 Brake switch no. 2.
If the fault is still present, carry out fault finding on the ABS computer.
AFTER REPAIRDeal with any faults.
Carry out a road test followed by another check with the diagnostic tool.

DIESEL INJECTION
Fault finding – Conformity check13B
13B - 141V3 MR-372-J84-13B250$450.mif
EDC16
PROGRAM NO.: C1
Vdiag No.: 51
DRIVER PARAMETERS
NOTESOnly check conformity after a complete check using the diagnostic tool. The values
shown in this conformity check are given as a guide.
Test conditions: ENGINE OFF, IGNITION ON.
Order FunctionParameter or Status
checked or ActionDisplay and Notes Fault finding
1EnginePR190:Idle speed
setpointIndicates the engine's
rotational speed
setpoint in rpm.In the event of a fault, refer to
the interpretation for fault
DF005 Engine speed
sensor circuit.
PR055:Engine speedGives the engine's
speed in rpm
2Accelerator
pedal position *PR030:Accelerator
pedal positionIndicates the
accelerator pedal
position.
If no pressure is being
applied to the pedal
PR030 = 0 %In the event of a fault, refer to
the interpretation of fault
DF008 Pedal
potentiometer circuit
gang 1 or DF009 Pedal
potentiometer circuit
gang 2.
3Sensor feedPR147:Pedal
potentiometer
voltage gang 1Accelerator pedal
released
0.70 < X < 0.80 VIn the event of a fault, refer to
the interpretation of fault
DF008 Pedal
potentiometer voltage
track 1 or DF009 Pedal
potentiometer voltage
track 2. PR148:Pedal
potentiometer
voltage gang 2Accelerator pedal
released
0.35 < X < 0.40 V
4Brake contactET704:Brake contact
no. 1
Indicates recognition of
brake pedal contacts
INACTIVEIn the event of a fault, consult
the interpretation of status
ET704 Brake switch no. 1.
ET705:Brake contact
no. 2In the event of a fault, consult
the interpretation for status
ET705 Brake switch no. 2.
5Clutch pedalET405:Clutch pedal
switchIndicates recognition of
clutch pedal contacts
RELEASED
(MANUAL)
or WITHOUT
(AUTOMATIC)In the event of a fault, consult
the interpretation of status
ET405 Clutch pedal switch.
(*) Pedal voltages - cold, ignition on (average values stated for information only).
Pedal load 0 % 25 % 50 % 100 % 120 %
Gang 1 voltage 0.74 V 1.52 V 2.09 V 3.23 V 3.67 V
Gang 2 voltage 0.37 V 0.77 V 1.06 V 1.64 V 1.87 V

DIESEL INJECTION
Fault finding – Conformity check13B
13B - 148V3 MR-372-J84-13B250$450.mif
EDC16
PROGRAM NO.: C1
Vdiag No.: 51
CRUISE CONTROL/SPEED LIMITER (CONTINUED)
*ECU: Electronic Control Unit
NOTESOnly check conformity after a complete check using the diagnostic tool. The values
shown in this conformity check are given as a guide.
Test conditions: ENGINE OFF, IGNITION ON.
Order FunctionParameter or Status
checked or ActionDisplay and Notes Fault finding
2Brake contactET704:Brake switch
No. 1- INACTIVE
- ACTIVE (brake pedal
depressed)In the event of a fault,
consult the interpretation
of status ET704 Brake
switch no. 1
3ET705: Brake switch
No. 2- ACTIVE (brake pedal
released)
- INACTIVEIn the event of a fault,
consult the interpretation
of status ET705 Brake
switch no. 2
4Clutch pedal
switchET405:Clutch pedal
switch- ACTIVE
- INACTIVEIn the event of a fault,
consult the interpretation
of status ET405 Clutch
switch.
5Cruise control
setpointPR130:Cruise control
setpointIndicates the reference
values requested by the
driver (in mph (km/h))NONE
6Vehicle speedPR089:Vehicle speed0 mph (kmh)
Shows the vehicle speed in
mph (km/h). This
parameter is transmitted
by the ABS computer or
vehicle speed ECU*. This
signal is transmitted to the
injection system on the
multiplex network.Test the multiplex
network. See fault finding
for the ABS system or the
vehicle speed ECU*.

DIESEL INJECTION
Fault finding – Conformity check13B
13B - 149V3 MR-372-J84-13B250$450.mif
EDC16
PROGRAM NO.: C1
Vdiag No.: 51
CRUISE CONTROL/SPEED LIMITER (continued 2)
NOTESOnly check conformity after a complete check using the diagnostic tool. The values
shown in this conformity check are given as a guide.
Test conditions: ENGINE OFF, IGNITION ON.
Order FunctionParameter or Status
checked or ActionDisplay and Notes Fault finding
7Cruise control/
speed limiter
deactivationET415:Cruise control/
speed limiter
deactivationNONE: This status is present
on the diagnostic tool when:
the computer has been
reinitialised,
The computer has been
reprogrammed.
- STATUS 1: Traction control
request
- STATUS 2: Brake pedal
depressed.
- STATUS 3: Clutch pedal
depressed.
- STATUS 4: Cancel button
pressed
- STATUS 5: Cruise control or
speed limiter monitoring.
- STATUS 6: Gear lever in
neutral (manual gearbox) or
neutral position (automatic
transmission).
- STATUS 7: Inconsistency
between the request and the
vehicle speed.
- STATUS 8: Automatic
transmission in defect mode.
- STATUS 9: Vehicle speed
monitoring.
- STATUS 10: Monitoring by
injection computer.In the event of a fault,
consult the
interpretation of status
ET415 Cruise control/
speed limiter
deactivation.

DIESEL INJECTION
Fault finding – Conformity check13B
13B - 160V3 MR-372-J84-13B250$450.mif
EDC16
PROGRAM NO.: C1
Vdiag No.: 51
DRIVER PARAMETERS
NOTESOnly check conformity after a complete check using the diagnostic tool. The values
shown in this conformity check are given as a guide.
Test Conditions: ENGINE AT IDLE SPEED, COOLANT TEMPERATURE > 80 ˚C.
Order FunctionParameter or Status
checked or ActionDisplay and Notes Fault finding
1EnginePR055:Engine speedGives the engine speed of
rotation in rpmIn the event of a fault, refer
to the interpretation for fault
DF005 Engine speed
sensor circuit. PR190:Idle speed
setpointIndicates the engine's
rotational speed setpoint
in rpm.
2Accelerator
pedal position*PR030:Accelerator
pedal positionIndicates the accelerator
pedal position.
If no pressure is being
applied to the pedal
PR030 = 0 %In the event of a fault, refer
to the interpretation of fault
DF008 Pedal
potentiometer circuit
gang 1 or DF009 Pedal
potentiometer circuit
gang 2.
3Sensor feedPR147:Pedal
potentiometer
voltage
gang 1Accelerator pedal
released
0.70 < PR147 < 0.80 VIn the event of a fault, refer
to the interpretation of fault
DF008 Pedal
potentiometer voltage
gang 1 or DF009 Pedal
potentiometer voltage
gang 2. PR148:Pedal
potentiometer
voltage
gang 2Accelerator pedal
released
0.35 < PR088 < 0.40 V
4Brake contactET704:Brake contact
no. 1
Indicates recognition of
brake pedal contacts
INACTIVEIn the event of a fault,
consult the interpretation of
status ET704 Brake switch
no. 1.
ET705:Brake contact
no. 2In the event of a fault,
consult the interpretation for
status ET705 Brake
contact no. 2.
5Clutch pedalET405:Clutch pedal
switchIndicates recognition of
clutch pedal contacts
RELEASED (MANUAL)
or WITHOUT
(AUTOMATIC)In the event of a fault,
consult the interpretation of
status ET405 Clutch pedal
switch.
(*) Pedal voltages - cold, ignition on (average values stated for information only).
Pedal load 0 % 25 % 50 % 100 % 120 %
Gang 1 voltage 0.74 V 1.52 V 2.09 V 3.23 V 3.67 V
Gang 2 voltage 0.37 V 0.77 V 1.06 V 1.64 V 1.87 V