2014 RENAULT SCENIC lock

PETROL INJECTION
Fault finding – Introduction17B
17B-5V12 MR-372-J84-17B000$045.mif
SAGEM 3000
Program No.: A7
Vdiag No.: 44, 48
4. FAULT FINDING PROCEDURE (continued)
Wiring check
Fault finding problems
Disconnecting the connectors and/or manipulating the wiring may temporarily remove the cause of a fault.
Electrical measurements of the voltage, resistance and insulation are generally correct, especially if the fault is not
present when analysing (stored fault).
Visual inspection
Look for damage under the bonnet and in the passenger compartment.
Carefully check the fuses, insulators and wiring harness routing.
Look for signs of oxidation.
Physical inspection
While manipulating the wiring, use the diagnostic tool to note any change in fault status from stored to present.
Make sure that the connectors are properly locked.
Apply light pressure to the connectors.
Twist the wiring harness.
If there is a change in status, try to locate the source of the fault.
Inspection of each component
Disconnect the connectors and check the appearance of the clips and tabs, as well as their crimping (no crimping on
the insulating section).
Make sure that the clips and tabs are properly locked in the sockets.
Check that no clips or tabs have been dislodged during connection.
Check the clip contact pressure using an appropriate model of tab.
Resistance check
Check the continuity of entire lines, then section by section.
Look for a short circuit to earth, to + 12 V or with another wire.
If a fault is detected, repair or replace the wiring harness.
JSAA741.0

PETROL INJECTION
Fault finding – System operation17B
17B - 8V12 MR-372-J84-17B000$090.mif
SAGEM 3000
Program No.: A7
Vdiag No.: 44, 48
Engine immobiliser
The immobiliser function is managed by the UCH and engine management computers.
Before any driver request (card + button press), the engine management and UCH computers exchange
authentication CAN frames to determine whether or not to start the engine.
After more than five consecutive failed authentication attempts, the engine management computer goes into
protection (anti-scanning) mode and no longer tries to authenticate the UCH computer. It only leaves this mode when
the following sequence of operations is carried out:
– the ignition is left on for at least 60 seconds,
– ignition is switched off,
– the injection computer self-supply cuts out when it should (the time varies according to engine temperature).
After this, only one authentication attempt is allowed. If it too fails, the sequence of operations described above must
be repeated.
If the engine management computer still fails to unlock, contact the Techline.
Impact detected
If an impact has been registered by the injection computer (Impact detected), switch off the ignition for 10 seconds
then switch it back on to start the engine. Then clear any faults.
WARNING
Disconnect the injection computer when carrying out any welding work on the vehicle.
JSAA741.0

PETROL INJECTION
Fault finding – Interpretation of faults17B
17B-62V12 MR-372-J84-17B000$360.mif
SAGEM 3000
Program No.: A7
Vdiag No.: 44, 48
DF091
PRESENT
OR
STOREDVEHICLE SPEED SIGNAL
1.DEF : error in speed signal from the ABS
NOTESConditions for applying the fault finding procedure to stored faults:
The fault is declared present with the engine running.
Special note:
–OBD warning light illuminated.
Run a multiplex network test (see88B, Multiplex).
If the fault is still present, carry out fault finding on the ABS - ESP system (see38C, Anti-lock braking system).
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.
JSAA741.0

PETROL INJECTION
Fault finding – Interpretation of faults17B
17B-69V12 MR-372-J84-17B000$360.mif
SAGEM 3000
Program No.: A7
Vdiag No.: 44, 48
DF101
PRESENT
OR
STOREDELECTRONIC STABILITY PROGRAM MULTIPLEX CONNECTION
1.DEF : CAN connection fault
NOTESConditions for applying the fault finding procedure to stored faults:
The fault is declared present after an attempt is made to start the engine.
Run a multiplex network test (see88B, Multiplex).
If the fault is still present, carry out fault finding on the ABS - ESP system (see38C, Anti-lock braking system).
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.
JSAA741.0

PETROL INJECTION
Fault finding – Interpretation of statuses17B
17B - 140V12 MR-372-J84-17B000$540.mif
SAGEM 3000
Program No.: A7
Vdiag No.: 44, 48
ET054
IDLING SPEED REGULATION
NOTESThere must be no present or stored faults.
Check the parameters PR032, PR058, PR064, PR118, PR119 and PR030.
Check that all these parameters are completely correct.
IDLING SPEED
TOO LOW
Check:
– the engine oil level (too high  splashing),
– that the exhaust pipe is not blocked (catalytic converter damaged),
– the cleanliness and conformity of the air filter,
– that the air inlet circuit is not blocked,
– that the throttle valve is not clogged,
– the condition and conformity of the spark plugs,
– the fuel circuit sealing,
– the fuel pressure and flow (see MR 364 Mechanics, 17B, Petrol injection),
– the condition and cleanliness of the injectors,
– the cylinder compression's,
– the timing adjustment,
– the hydraulic tappets if there is camshaft noise (see MR 364 Mechanics, 11A, Top and front of engine).
Repair the defective component if necessary.
JSAA741.0

PETROL INJECTION
Fault finding – Interpretation of statuses17B
17B - 143V12 MR-372-J84-17B000$540.mif
SAGEM 3000
Program No.: A7
Vdiag No.: 44, 48
ET055
CONTINUED
Check:
– the condition of the air filter,
– that the air inlet circuit is not blocked,
– the condition and conformity of the spark plugs,
– the sealing between the throttle valve and inlet manifold,
– the manifold pressure sensor sealing,
– the fuel vapour absorber bleed, which must not be jammed open,
– the fuel vapour absorber bleed system sealing,
– the brake servo system sealing,
– the turbocharger safety valve circuit sealing,
– the cylinder head oil vapour recovery system sealing,
– the sealing between the inlet manifold and cylinder head,
– the exhaust pipe sealing between the cylinder head and catalytic converter.
– the fuel flow rate and pressure.
If the idling speed is not stable, check:
– the timing adjustment,
– the hydraulic tappets if there is camshaft noise (seeMR 364 Mechanical, 11A, Top and front of engine),
– the cylinder compression's.
Drive the vehicle to check the repair.
Repair the defective components.
AFTER REPAIRRepeat the conformity check from the start.
JSAA741.0

PETROL INJECTION
Fault finding – Interpretation of statuses17B
17B - 147V12 MR-372-J84-17B000$540.mif
SAGEM 3000
Program No.: A7
Vdiag No.: 44, 48
ET415
CRUISE CONTROL/SPEED LIMITER DEACTIVATION
NOTESSpecial notes:
Apply the conformity check to see if the statuses are consistent with the system
operating programs.
Note:
Cruise control can be activated when the vehicle speed exceeds 18 mph (30 km/h).
Status ET415 shows various factors that cause deactivation of the cruise control/speed limiter function, due to a
driver demand or the external environment (example STATUS 1).
IMPORTANT
Clear the fault memory by running command RZ007 Fault memory, to reset this status to WITHOUT.
NONEThis status is present on the diagnostic tool if:
The computer has been reinitialised.
The computer has been reprogrammed
STATUS 1Traction control request
If the vehicle is fitted with a traction control system, the cruise control function is
deactivated every time the ABS computer calls for traction control.
Status ET415 becomes STATUS 1 when driving with the cruise control active (ET042
Cruise control/Speed limiter: CRUISE CONTROL) and traction control is requested.
This deactivates cruise control.
Reinitialise status ET415 on the injection computer by running command RZ007
“Fault memory”.
If status ET415 becomes STATUS 1 with no traction control request (see 38C, Anti-lock
braking system).
AFTER REPAIRDeal with any other faults. Clear the fault memory.
Switch off the ignition and carry out a road test followed by a test with the diagnostic
tool
1JSAA741.0

PETROL INJECTION
Fault finding – Interpretation of parameters17B
17B - 159V12 MR-372-J84-17B000$675.mif
SAGEM 3000
Program No.: A7
Vdiag No.: 44, 48
PR032
INLET PRESSURE
NOTESThere must be no present or stored faults.
Check the cleanliness and condition of the manifold pressure sensor and its connections.
Repair if necessary.
Disconnect the battery and the injection computer.
Check the cleanliness and condition of the connections.
Using the Universal bornier, check the insulation and continuity of the following connections:
Computer, connectorB, track H2 track 1 of the manifold pressure sensor.
Computer, connectorB, track H3 track 3 of the manifold pressure sensor
Computer, connectorB, track H4 track 2 of the manifold pressure sensor
Repair if necessary.
If the fault is still present, replace the manifold pressure sensor.
If the fault is still present, carry out the following checks:
The inlet line must be perfectly sealed, from the throttle valve to the cylinder head.
Check:
– the condition of the air filter,
– that the air inlet circuit is not blocked,
– the sealing between the throttle valve and inlet manifold,
– the manifold pressure sensor sealing,
– the fuel vapour absorber bleed, which must not be jammed open,
– the fuel vapour absorber bleed system sealing,
– the brake servo system sealing,
– that there are no leaks in the turbocharger safety valve circuit,
– the cylinder head oil vapour recovery system sealing,
– the sealing between the inlet manifold and cylinder head,
– the exhaust pipe sealing between the cylinder head and catalytic converter.
Repair if necessary.
AFTER REPAIRRepeat the conformity check from the start.
JSAA741.0