S3000 A7 vdiag 44 RENAULT SCENIC 2014 J95 / 3.G Petrol Injection - Sagem3000 Workshop Manual

PETROL INJECTION
Fault finding – Introduction17B
17B-2V12 MR-372-J84-17B000$045.mif
117B
SAGEM 3000
Program No.: A7
Vdiag No.: 44, 48PETROL INJECTION
Fault finding – Introduction
1. SCOPE OF THIS DOCUMENT
This document presents the fault finding method 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 (CD-ROM), paper.
Type of diagnostic tools
–CLIP
Special tooling required
3. REMINDERS
Procedure
To run fault finding on the vehicle's computers, switch on the ignition in fault finding mode (forced + after ignition
feed).
Proceed as follows:
– with the vehicle card in the card reader,
– press and hold Start button (longer than 5 seconds) with start-up conditions not fulfilled,
– connect the diagnostic tool and perform the required operations.
To cut off the + after ignition feed, proceed as follows:
– disconnect the diagnostic tool,
– press the Start button twice briefly (less than 3 seconds),
– Check that the + after ignition feed has been cut off by checking that the computer warning lights on the instrument
panel have gone out. Vehicle(s): Mégane II / Mégane Sport / Scénic II
Function concerned: Petrol injectionName of computer: Sagem S3000
Program no.: A7
Vdiag No.: 44, 48
Special tooling required
Multimeter
Elé. 1497Bornier
Elé. 1681Universal bornier
Note:
The left-hand and right-hand xenon bulb computers are powered when the dipped headlights are lit.
Fault finding procedures can only be carried out on them after the ignition has been switched on in fault finding
mode (+ after ignition imposed) and the dipped headlights are on.
S3000_V44_PRELI/S3000_V48_PRELI
MR-372-J84-17B000$045.mif

PETROL INJECTION
Fault finding – System operation17B
17B - 7V12 MR-372-J84-17B000$090.mif
SAGEM 3000
Program No.: A7
Vdiag No.: 44, 48PETROL INJECTION
Fault finding – System operation
1. SYSTEM OPERATION
Composition
The injection system consists of the:
– accelerator potentiometer,
– accelerator pedal switch,
– TDC sensor,
– atmospheric pressure sensor,
– air temperature sensor,
– coolant temperature sensor,
– freon pressure sensor,
– upstream oxygen sensor,
– downstream oxygen sensor,
– cruise control switch,
– steering column switch,
– cruise control on/off switch,
– brake lights switch,
– fuel vapour absorber,
– injection computer,
– motorised throttle valve,
– four injectors,
– four pencil coils,
– + turbocharging pressure sensor,
– coolant pump
– turbocharging solenoid valve.
Computer
SAGEM S3000 flash EEPROM 128-track computer controlling the injection and the ignition.
Multipoint injection in sequential mode.
Connections to the other computers:
– Protection and Switching Unit (UPC)
– Passenger Compartment Control Unit (UCH),
– Automatic Transmission Electronic Control Unit (AUTO ECU).
JSAA741.0
MR-372-J84-17B000$090.mif

PETROL INJECTION
Fault finding – System operation17B
17B - 9V12 MR-372-J84-17B000$090.mif
SAGEM 3000
Program No.: A7
Vdiag No.: 44, 48
2. OPERATIONAL SAFETY
Warning lights illumination
The S3000 injection system manages the illumination of three warning lights and the issuing of warning messages
according to the severity of the faults detected, to inform the customer and to direct fault finding.
The injection computer manages the illumination of warning lights and warning messages displayed on the instrument
panel. These warning lights illuminate during the starting phase and in the event of an injection fault or engine
overheating.
The warning light illumination signals reach the instrument panel via the multiplex network.
Warning light illumination principle
During the starting phase (START button pressed) the OBD (On Board Diagnostic) warning light comes on for
approximately 3 seconds then goes out.
If there is an injection fault (severity 1), the INJECTION FAULT written message lights up followed by the SERVICE
warning light. It indicates a reduced level of operation and a limited safety level.
The driver should carry out repairs as soon as possible.
Components involved:
– motorised throttle valve,
– accelerator pedal potentiometer,
– inlet manifold pressure sensor,
–computer,
– actuator feed,
– computer feed.
If there is a serious injection fault (severity 2), the red engine symbol and the word STOP appear (display with
information display only), with the ENGINE OVERHEATING written message followed by the STOP warning light
and a buzzer. If this happens, the vehicle must be stopped immediately.
When a fault causing excessive pollution in the exhaust fumes is detected, the orange OBD warning light, an engine
symbol, will be lit:
–flashing in the event of a fault which might irreparably damaged the catalytic converter (destructive misfire). If this
happens you must stop the vehicle immediately,
–constantly in the case of non-compliance with the anti-pollution standards (pollutant misfire, catalytic converter
fault, oxygen sensor faults, inconsistency between the oxygen sensors and canister fault).
Mileage travelled with fault
This parameter serves to measure the distance travelled with one of the injection fault warning lights on: level 1 fault
warning light (amber), coolant temperature overheating warning light, or OBD warning light.
The counter can be reset to 0 using the diagnostic tool.
JSAA741.0

PETROL INJECTION
Fault finding – Interpretation of faults17B
17B-26V12 MR-372-J84-17B000$315.mif
SAGEM 3000
Program No.: A7
Vdiag No.: 44, 48
DF011
PRESENT
OR
STOREDSENSOR SUPPLY VOLTAGE NO. 1
1.DEF : voltage outside tolerances
2.DEF : internal electronic fault
NOTESPriority for dealing with a combination of faults:
Deal with the other faults first.
Conditions for applying the fault finding procedure to stored faults:
The fault is declared present after:
– the ignition is switched on.
– loss of dialogue between the inter-systems (ESP, CC/SL),
– power loss when accelerating.
Special note:
–level 1 fault warning light illuminated,
– Throttle valve defect mode types 1 and 2.
Check the cleanliness and condition of the throttle valve connections.
Check the cleanliness and condition of the pedal potentiometer connections.
Disconnect the battery and the injection computer.
Check the cleanliness and condition of the connections.
Repair if necessary.
Sensor feed No. 1 is reserved for the following components:
– motorised throttle valve,
– coolant temperature sensor,
– pedal potentiometer gang 1,
– upstream and downstream oxygen sensors,
– motorised throttle potentiometer gangs 1 and 2.
If, with sensors disconnected the voltage is still less than 4.9 V or greater than 5.1 V:
– check the insulation from earth of the + 5 V line of each of its sensors.
Use the "Universal bornier" to check the insulation and continuity of the following connections:
Computer, connector B, track G2 Track 2 of the throttle valve
Computer, connectorA, track G2 Track 3 of the pedal potentiometer gang 1
Repair if necessary.
If the fault is still present, there is a computer fault. Contact the Techline.
AFTER REPAIRDeal with any faults declared by the diagnostic tool.
Clear the computer memory.
Carry out a road test followed by another check with the diagnostic tool.
S3000_V44_DF011/S3000_V48_DF011JSAA741.0

PETROL INJECTION
Fault finding – Interpretation of faults17B
17B-27V12 MR-372-J84-17B000$315.mif
SAGEM 3000
Program No.: A7
Vdiag No.: 44, 48
DF012
PRESENT
OR
STOREDSENSOR SUPPLY VOLTAGE No. 2
1.DEF : voltage outside tolerances
2.DEF : internal electronic fault
NOTESPriority for dealing with a combination of faults:
Deal with the other faults first.
Conditions for applying the fault finding procedure to stored faults:
The fault is declared present after:
– the ignition is switched on.
– loss of power when accelerating,
– loss of inter-systems (ESP, CC/SL).
Special note:
–level 1 fault warning light illuminated.
– throttle valve defect mode types 4 and 6.
Check the cleanliness and condition of the throttle valve connections.
Check the cleanliness and condition of the pedal potentiometer connections.
Disconnect the battery and the injection computer.
Check the cleanliness and condition of the connections.
Repair if necessary.
Sensor feed no. 2 is reserved for the following components:
– turbocharger pressure sensor,
– pedal potentiometer gang 2,
– coolant pressure sensor,
– Inlet manifold pressure sensor.
If, with the sensors disconnected, the voltage is still less than 4.9 V or greater than 5.1 V:
– check the insulation from earth of the + 5 V line of each of its sensors.
Using the Universal bornier, check the insulation and continuity on the following connection:
Computer, connectorA, track F2 Track 2 of the pedal potentiometer gang 2
Repair if necessary.
If the fault is still present, contact the Techline.
AFTER REPAIRDeal with any faults declared by the diagnostic tool.
Clear the computer memory.
Carry out a road test followed by another check with the diagnostic tool.
S3000_V44_DF012/S3000_V48_DF012JSAA741.0

PETROL INJECTION
Fault finding – Interpretation of faults17B
17B-53V12 MR-372-J84-17B000$360.mif
SAGEM 3000
Program No.: A7
Vdiag No.: 44, 48
DF080
PRESENT
OR
STORED
CAMSHAFT DEPHASER CIRCUIT
CO : open circuit
CC.0 : short circuit to earth
CC.1 : short circuit to + 12 V
1.DEF : programming deviation
2.DEF : programming inconsistency
3.DEF : camshaft dephaser position fault
4.DEF : dephaser automatic control outside the limits
5.DEF: non-compliance with emission control standards
NOTESIf faults DF046 or DF084 are present or stored, deal with them first.
If faults DF154 Engine speed sensor circuit, DF119 Camshaft sensor signal and
DF080 are all present, ignore DF080 and deal with the other 2 faults first.
Conditions for applying the fault finding procedure to stored faults:
The fault is considered present after a change in the engine speed.
See Technical Note 6506A, Injection fault finding, camshaft dephaser.
If the fault is still present, contact the Techline.
AFTER REPAIRApply the Stored fault diagnostic application conditions:
– If the fault is present, continue to deal with the fault.
– If the fault is stored, ignore it.
Deal with any other faults.
Clear the stored faults.
S3000_V44_DF080/S3000_V48_DF080JSAA741.0

PETROL INJECTION
Fault finding – Interpretation of faults17B
17B-75V12 MR-372-J84-17B000$360.mif
SAGEM 3000
Program No.: A7
Vdiag No.: 44, 48
DF119
PRESENT
OR
STOREDCAMSHAFT SENSOR SIGNAL
1.DEF : camshaft tooth event
2.DEF : dephasing measurement out of range
NOTESIf faults DF084 or DF046 are present or stored, deal with them first.
In the event of a combination of faults DF154 Flywheel signal sensor circuit,
DF080 Camshaft dephaser circuit and DF119, ignore fault DF080 and deal with
the other 2 faults first.
Conditions for applying the fault finding procedure to stored faults:
The fault is declared present after a road test.
Check the cleanliness and the condition of the camshaft sensor connectors.
Check the condition and the cleanliness of the camshaft sensor.
With the ignition on, check for + 12 V on the camshaft sensor connector
(see the connector track number in the appropriate wiring diagram).
If +12V is not present:
– disconnect the battery,
– disconnect the connector marked PPM1 in the Protection and Switching Unit,
– check the cleanliness and condition of the connections,
– Use the Universal bornier to check the continuity of the following connection:
Protection and Switching Unit connector PPM1 track 2 Camshaft sensor
Reconnect the Switching Protection Unit connector and reconnect the battery.
With the ignition on, if there is still no +12V at the camshaft sensor connector, there is a fault in the Protection
and Switching Unit.
Contact the Techline.
Disconnect the battery.
Disconnect the computer. Check the cleanliness and condition of the connections.
Use the universal bornier to check the insulation and continuity of the following connections:
Computer track E2, connector C Camshaft sensor
Computer track F1, connector C Camshaft sensor
(see connector track numbers in the corresponding wiring diagram).
If the fault is still present, there is definitely a fault with the camshaft sensor target.
Refer to the relevant section in the Workshop Repair Manual.
AFTER REPAIRApply the Stored fault diagnostic application conditions:
– If the fault is present, continue to deal with the fault.
– If the fault is stored, ignore it.
Deal with any other faults.
Clear the stored faults.
S3000_V44_DF119/S3000_V48_DF119JSAA741.0

PETROL INJECTION
Fault finding – Interpretation of faults17B
17B-79V12 MR-372-J84-17B000$360.mif
SAGEM 3000
Program No.: A7
Vdiag No.: 44, 48
DF128
PRESENT
OR
STOREDBRAKE SWITCH 2 CIRCUIT
1.DEF : fault on both brake pedal contacts
NOTESPriority for dealing with a combination of faults:
Apply the procedure for dealing with fault DF127 Gang 1 switch circuit first if it is
present or stored.
Conditions for applying the fault finding procedure to stored faults:
The fault is declared present:
– with the engine running,
– With the brake pedal depressed,
– With the cruise control ON with a cruising speed set.
Run a multiplex network test (see88B, Multiplex).
If the fault is still present, run fault finding on the UCH system (see87A, UCH).
AFTER REPAIRDeal with any faults declared by the diagnostic tool.
Clear the computer memory.
Carry out a road test followed by another check with the diagnostic tool.
S3000_V44_DF128JSAA741.0

PETROL INJECTION
Fault finding – Interpretation of faults17B
17B-80V12 MR-372-J84-17B000$360.mif
SAGEM 3000
Program No.: A7
Vdiag No.: 44, 48
DF154
PRESENT
OR
STOREDFLYWHEEL SIGNAL SENSOR CIRCUIT
1.DEF : flywheel target fault
2.DEF : no speed signal or interference signal
NOTESPriority for dealing with a combination of faults:
In the event of a fault DF154, DF119 Camshaft sensor signal and DF080 Camshaft
dephaser circuit, ignore fault DF080 and deal with the other 2 faults first.
Conditions for applying the fault finding procedure to stored faults:
The fault is declared present after the starter motor has been running for 10 seconds
or at an engine speed above 600 rpm.
Special note:
–OBD warning light illuminated.
Check the cleanliness, condition and the assembly of the flywheel.
Repair if necessary.
If the flywheel has been replaced or removed, the flywheel target has to be reinitialised, then reprogrammed.
Programming reinitialisation:
Run command RZ005.
Carrying out the flywheel target programming:
Accelerate up to 4000 rpm in third gear then decelerate, foot off the pedal, to power take-up speed*.
Then repeat immediately.
In rare cases, fault DF125 Torquemeter programming may appear.
(*This is the moment when, during deceleration with no load, the engine drops to idle speed and recovers torque).
S3000_V44_DF154/S3000_V48_DF154JSAA741.0

PETROL INJECTION
Fault finding – Interpretation of faults17B
17B - 81V12 MR-372-J84-17B000$405.mif
SAGEM 3000
Program No.: A7
Vdiag No.: 44, 48PETROL INJECTION
Fault finding – Interpretation of faults
DF398
PRESENT
OR
STOREDFUEL CIRCUIT OPERATING FAULT
1.DEF : petrol circuit fault
NOTESPriority for dealing with a combination of faults:
Apply the procedure for dealing with faults DF081 Solenoid valve canister bleed and
DF085 Fuel pump relay first if they are present or stored.
Conditions for applying the fault finding procedure to stored faults:
The fault is declared present after an attempt is made to start the engine.
Special note:
–OBD warning light comes on.
Check the cleanliness, condition and fitting of the fuel vapour absorber.
Repair if necessary.
If the fault is still present, adjust the harness so that the fault status changes (present  stored).
Look for any damage to the wiring harness, and check the condition and connection of the injection computer
and fuel vapour absorber connectors.
Repair if necessary.
If the fault is still present, check for the +12V on track 1 of the fuel vapour absorber.
If the +12V is not present, check the following connection for insulation, continuity and the absence of
interference resistance:
Fuel vapour absorber track 1 track 2 of connector PPM1 on the Protection and Switching Unit
Repair if necessary.
If the fault is still present, disconnect the battery and the injection computer.
Check the insulation, continuity and the absence of interference resistance on the following connection:
Computer, connectorC, track E1petrol vapour absorber track 2
Repair if necessary.
If the fault is still present, measure the resistance between tracks 1 and 2 of the fuel vapour absorber bleed
solenoid valve.
Replace the bleed solenoid valve for the fuel vapour absorber if the resistance is not 26 ±4 at 23 °C.
If the fault is still present, check the insulation, continuity and the absence of interference resistance on the
following connections:
Computer, connectorC, track D1 track 1 of the PEM connector of the Protection
and Switching Unit
Repair if necessary.
If the fault is still present, deal with the other faults, then proceed to the conformity check.
AFTER REPAIRFollow the instructions to confirm repair.
Deal with any other faults.
Clear the stored faults.
S3000_V44_DF398/S3000_V48_DF398JSAA741.0
MR-372-J84-17B000$405.mif