1995 RENAULT MEGANE SCENIC diagram

DIESEL EQUIPMENT
Coolant temperature sensor
13
LOCATION
Temperature sensor (1) (black connector)
DIAGRAM
98904RDI1307
The sensor has two functions
•Thermistor (tracks 2 and 3) :
i.e. a resistance which varies with coolant
temperature. The tracks are connected to the
pre-post-heating unit.
•Temperature switch (tracks 1 and 4) :
for operating the EGR solenoid valve.SPECIFICATIONS
Thermistor
Temperature in °C ± 1
Switch status
30closed
20open
Temperature in °C ± 1Resistance Ω
252 610 to 2 990
80310 to 350
Temperature switch
13-39

ANTIPOLLUTION
Fuel vapour recirculation
14
E7J engine
CIRCUIT OPERATIONAL DIAGRAM
98170R
1Throttle body
2Canister bleed solenoid valve
3Canister
APipe from fuel tank for recirculation of fuel vapour
BBreather
CTake-off downstream of throttle
14-1

99232R
ANTIPOLLUTION
Fuel vapour recirculation
14
K7M engine
CIRCUIT OPERATIONAL DIAGRAM
1Inlet manifold
2Canister
3RCO control solenoid valve
4Fuel vapour recirculation pipe
5Oil vapour rebreathing pipe
6T piece connecting the oil vapour rebreathing pipe (5) and fuel vapour recirculation pipe (4)
7Oil vapour rebreathing and fuel vapour recirculation pipe
RPipe from fuel tank
MABreather opening
14-2

99230R
ANTIPOLLUTION
Fuel vapour recirculation
14
F3R engine
CIRCUIT OPERATIONAL DIAGRAM
1Inlet manifold
2Canister
3RCO control solenoid valve
4Fuel vapour recirculation pipe
RPipe from fuel tank
MABreather opening
14-3

ANTIPOLLUTION
Fuel vapour recirculation
14
CHECKING THE OPERATION OF THE CANISTER
BLEED VALVE
A malfunction in the system could cause the idle
speed to be unstable or the engine to stall.
Check the circuit conforms (see diagrams).
Take care to check that the pipe marked "CAN"
on the solenoid valve is connected to the canister.
Check the condition of the pipes up to the fuel
tank.
97393R4
1Inlet manifold
2Canister bleed solenoid valve
3Canister
4Fuel tankAt idle speed, check by connecting a pressure
gauge (- 3 ; +3 bars) (Mot. 1311-01) to the "CAN"
outlet on the solenoid valve, that there is no
vacuum (in the same manner, check the command
value read by the
XR25 using #23 remains at a
minimum X = 0.7 % for F3R and K7M engines). Is
there a vacuum ?
YESIgnition off, use a vacuum pump to apply a
vacuum of 500 mbars to the solenoid valve
at (C). The vacuum should not vary by more
than 10 mbars in 30 seconds.
Does the pressure vary?
YESThe solenoid valve is faulty, renew
it. Air must also be blown into the
pipe connecting the solenoid valve
to the canister to eliminate any
particles of active carbon.
NOThere is an electrical fault - check
the circuit.
NOUnder bleeding conditions (engine not at
idle speed, engine warm), there should be
an increase in the vacuum (at the same
time, the value for #23 on the XR25 should
increase forF3R and K7M engines).
The fuel tank breather pipe can also be checked.
After removing the filler cap, use a vacuum pump
to apply a vacuum to the pipe at (B). If a vacuum
can be applied to the pipe this shows that the
overfilling valve is correctly sealed.
As soon as the filler cap is replaced, however, the
vacuum should disappear quickly as the pipe is no
longer blocked and the internal degassing
chambers in the fuel tank are connected.
14-8

IGNITION
Static ignition
17
99365R
K7M engine
Electrical connector
Track Allocation
1+anti-interference
condenser
2 +after ignition
3 coil control via computer
Connector
Track number+-
123 Coil connector track identification
Inscription on connector
Test to be made
between tracksResistance
K7M engine F3R engine
1 - 2 0.5 Ω0.2 Ω
1 - 3 1 Ω1 Ω
2 - 3 1 Ω1 Ω
HT - HT10 kΩ8 kΩ
F3R - K7M
engines
DIAGRAM
PRJ99029
KEY TO COMPONENTS
120Injection computer
597Engine fuse box
663Dual output ignition coil for cylinders
1 and 4
664Dual output ignition coil for cylinders
2 and 3
679Anti-interference condenser, connected to
coil:
-664 for F3R engines
-663 for K7M engines (dotted line)
17-3

INJECTION
Operating wiring diagram
17
KEY TO OPERATIONAL WIRING DIAGRAMS (E7J, F3R, K7M)
COMPONENT NO DESCRIPTION
109
119
120
146
147
149
193 to 196
218
222
224
225
228
236
238
242
244
247
250
272
310
319
341
371
398
437
565
597
645
649
663
664
679
746
772
777
927
MF
MHOn board computer
Automatic transmission computer
Injection computer
Pinking sensor (located under the inlet manifold for E7J engine)
Absolute pressure sensor
TDC sensor
Injectors
Fuel pump
Throttle position potentiometer
Power assisted steering pressostat
Diagnostic socket
Idle speed regulation micromotor
Fuel pump relay (in engine fuse box)
Injection feed locking relay
Oxygen sensor
Coolant temperature sensor
Instrument panel
Vehicle speed sensor
Air temperature sensor
Ignition power module
Air conditioning control panel
Idle speed regulation solenoid valve
Fuel vapour recirculation solenoid valve
Exhaust gas recirculation solenoid valve (EGR)
Throttle body heater (under throttle body)
Throttle body assembly
Engine fuse box
Passenger compartment connection unit
Idle speed regulation stepping motor
Dual ignition coil n°1 (cylinders 1 and 4)
Dual ignition coil n° 2 (cylinders 2 and 3)
Radio anti-interference condenser
Cylinder reference sensor
Heater relay (in engine fuse box)
Power fuse board (near battery)
Inertia switch
Rear right hand electrical earth
Engine electrical earth (located on the cylinder block between the starter and the al-
ternator for the E7J engine)
17-39

INJECTION
Operating wiring diagram
17
E7J engine
PRJ99528
17-40