ignition RENAULT MEGANE SCENIC 1995 Service Service Manual

INJECTION
Operating wiring diagram
17
E7J engine
COMPUTER TRACK ALLOCATION
TrackALLOCATION
1Power earth
2Electronic earth
3Vehicle speed information
4+ before ignition (permanent) computer memory
5Canister bleed signal (sequential earth period)
6Pump relay control (via track N° 2)
7Locking relay control (via track N° 2)
8Diagnostic line for erasing the memory and power assisted steering pressostat information
9Throttle position potentiometer information (pin N° 4 on 222)
10Heater relay command
11TDC sensor signal (track B)
12Rev counter information at instrument panel
13Connection with injection fault warning light on instrument panel
14Air temperature information
15Coolant temperature information
16+ 5 V feed for absolute pressure sensor and throttle potentiometer
17Common earth for absolute pressure sensor, throttle potentiometer and coolant temperature
sensor
18Emission of diagnostic signal to diagnostic socket
19Main computer feed via injection locking relay
20Air conditioning compressor command
21Injector control via earth
22Not used
23+ or - feed to idle speed micromotor (pin N° 1)
24+ or - feed to idle speed micromotor (pin N° 2)
17-41

INJECTION
Operating wiring diagram
17
E7J engine
TrackALLOCATION
25No load information input
26Not used
27Power module command
28TDC sensor signal input (track A)
29Immobiliser coded line input via decoder unit
30+ 12 V information when ignition turned on
31Pinking sensor noise signal input
32+ 12 V after ignition information
33Voltage information dependent on manifold pressure seen by sensor (on track B)
34Air conditioning compressor operation request input
35Voltage from oxygen sensor input
17-42

INJECTION
Operating wiring diagram
17
K7M engine
COMPUTER TRACK ALLOCATION
TrackALLOCATION
1Not used
2Power earth n° 1
3Power earth n° 2
4Command for injector n° 2 and n° 3 via earth
5Air conditioning on - off information and request for compressor operation authorisation
(0 - 12 V)
6Heated windscreen information (0 - 12 V)
7Park / Neutral / torque reduction information (0 - 5 V) (K7M 703)
8Pinking sensor signal
9Stepping motor control (0 - 12 V)
10EGR solenoid valve control (0 - 12 V) (K7M 703)
11Bi-directional diagnostic line K used for entry into fault finding mode
(looking for computer), emission of diagnostic signals from computer, application of command
modes (G..*), erasing the memory (G0**)
and ending fault finding (G13*)
12Vehicle speed information
13Power assisted steering pressostat information
14Not used
15Coolant temperature sensor information
16Manifold pressure information transcribed by absolute pressure sensor
17Voltage information from oxygen sensor
18Earth
19Throttle position potentiometer information
20Air temperature sensor information
21Not used
22Not used
23Not used
24+ 12 V after ignition
17-44

INJECTION
Operating wiring diagram
17
TrackALLOCATION
25Not used
26Not used
27Not used
28Command for coil for cylinders 1 and 4
29Command for coil for cylinders 2 and 3
30Command for injector n° 1 and n° 4 via earth (n° 1 flywheel end)
31Pinking sensor screened cable
32+12 V before ignition
33TDC sensor signal (track B)
34TDC sensor signal (track A)
35Stepping motor command (0 - 12 V)
36Stepping motor command (0 - 12 V)
37Immobiliser coded line input
38Uni-directional diagnostic line L for entry into diagnostic mode only
(looking for computer)
39Not used
40Stepping motor command (0 - 12 V)
41Throttle angle information for automatic transmission computer
42RCO control (sequential earth period for canister bleed solenoid valve RCO)
43Command for injection fault warning light on instrument panel
44Common earth for pinking sensor and coolant temperature sensor and absolute pressure sensor
45+ 5 V feed for absolute pressure sensor and throttle position potentiometer
46Common earth for air temperature sensor and throttle position potentiometer
47Not used
48Command (via earth) for fuel pump relay and engine speed information
49Not used
K7M engine
17-45

INJECTION
Operating wiring diagram
17
COMPUTER TRACK ALLOCATION
TrackALLOCATION
1Not used
2Power earth n° 1
3Power earth n° 2
4Command for injector n° 3 via earth
5Heated windscreen information (0 - 12 V)
6Air conditioning on - off information and request for compressor operation authorisation
(0 - 12 V)
7Park / Neutral / torque reduction information (0 - 5 V) (F3R 751)
8Pinking sensor signal
9Not used
10Not used
11Bi-directional diagnostic line K used for entry into fault finding mode
(looking for computer), emission of diagnostic signals from computer, application of command
modes (G..*), erasing the memory (G0**)
and ending fault finding (G13*)
12Vehicle speed information
13Fuel flow information for on board computer
14Not used
15Coolant temperature sensor information
16Manifold pressure information transcribed by absolute pressure sensor
17Voltage information from oxygen sensor
18Oxygen sensor earth
19Throttle position potentiometer information
20Air temperature sensor information
21Not used
22Not used
23Not used
24+ 12 V after ignition
F3R engine
17-48

INJECTION
Operating wiring diagram
17
TrackALLOCATION
25Command for injector n° 2 via earth
26Command for injection fault warning light on instrument panel
27Not used
28Command for coil for cylinders 1 and 4
29Command for coil for cylinders 2 and 3
30Command for injector n° 4 via earth (timing end)
31Pinking sensor screened cable
32+12 V before ignition
33TDC sensor signal (track B)
34TDC sensor signal (track A)
35Immobiliser coded line input
36Not used
37Not used
38Uni-directional diagnostic line L for entry into diagnostic mode only
(looking for computer)
39Not used
40Not used
41Throttle angle information for automatic transmission computer
42Cylinder reference sensor information
43Engine speed information
44Common earth for pinking sensor and coolant temperature sensor and absolute pressure sensor
45+ 5 V feed for absolute pressure sensor and throttle position potentiometer
46Common earth for air temperature sensor and throttle position potentiometer
47Not used
48Command (via earth) for fuel pump relay (236)
49Not used
F3R engine
17-49

COOLING
Checking
2 - Checking the rating of the expansion bottle
cap
If fluid passes through the expansion bottle cap
valve, the cap must be replaced.
On the pump M.S. 554-07 fit tool M.S. 554-06 and
fit this to the valve to be checked.
Increase the pressure which should stabilise at the
calibration value for the cap valve, with a test to-
lerance of
± 0.1 bar.
Valve rating value:
19
1 - Checking the cooling circuit sealing
Replace the expansion bottle cap with tool
M.S.
554-01.
To this, connect tool M.S. 554-07.
Let the engine warm up then turn the ignition off.
Pump to put the circuit under pressure.
Stop pumping at 0.1 bar less than the rating value
of the expansion bottle cap.
The pressure should not drop. If it does, look for
the leak.
Slowly unscrew the union of tool M.S. 554-07 to
decompress the cooling circuit, then remove tool
M.S. 554-01 and refit the expansion bottle cap fit-
ted with a new seal.
SPECIAL TOOLING REQUIRED
M.S.554-07 Kit for checking cooling circuit sealing
M.S.554-01 Adaptor for M.S. 554-05
M.S.554-06 Adaptor for M.S. 554-05
97871R
Engine Valve colour Rating (in bar)
F8Q - E7JBrown 1.2
K7M - F3RBlue 1.6
19-3

AUTOMATIC TRANSMISSION
Use
23
DRIVING
The automatic transmission is lubricated under
pressure and therefore this only occurs if the en-
gine is running.
As a result, and with the risk of serious damage,
the following instructions must be complied with:
- never drive with the ignition off
(going down-
hill for example), we cannot stress enough how
dangerous this practice is.
- never push a vehicle (eg. : to reach a petrol
pump), except by following the instructions in
the "Towing" paragraph.
In addition, the vehicle is only driven if the engine
is running. It is therefore impossible to start the
engine of a vehicle with automatic transmission
by pushing it.
TOWING
In all cases, it is preferable to tow the vehicle on a
trailer or with the front wheels off the ground.
However, if this is not possible, the vehicle can be
towed at a speed below 25 mph (40 km/
h and
over a maximum distance of 30 miles (50 km) (le-
ver in N).
23-2

AUTOMATIC TRANSMISSION
Oil change frequencies
23
The mechanism is drained during the major service.
The oil level must be checked every 10000 miles (15 000 km) in case there is a slight oil leak.
The final drive is never drained ; it is filled for life.
The strainer is no longer replaced (NT 2261A).
Only the level may change due to a slight leak.
Oil capacity
NOTE :if the automatic transmission is replaced, only check the oil level since the transmission is supplied by
the Parts Department full of oil.
TOTAL volume
MECHANISM
5.7 l
FINAL DRIVE1 l
Fault warning light
MESSAGE FROM THE ELECTRONIC FAULT
WARNING LIGHT
Normal operation :
• The warning light is not illuminated during
normal operation whether the vehicle is being
started, engine running or when the vehicle is
stationary.
Presence of a fault :
• Vehicle stopped, engine running, or when
driving, warning light permanently illuminated
• Vehicle moving, warning light illuminates and
extinguishes without action at the ignition key.
• Vehicle moving, warning light illuminates
briefly.Oil temperature < - 20 °C or > + 140 °C
• Vehicle moving or stationary, warning light
flashes at a rate of approximately 1 flash per
second, in this case, reduce the performance
requirement by moderating acceleration.
23-6

AUTOMATIC TRANSMISSION
Wiring diagram
23
104 - Ignition switch
119 - Automatic transmission computer
120 - Injection computer
129 - ECO/PERF selector switch
160 - Stop switch
163 - Starter motor
225 - Diagnostic socket
247 - Double headlight relay
250 - Speed sensor
303 - Automatic transmission selector lighting
319 - Air conditioning control panel
535 - ECO/PERF selector switch warning light
569 - 4 speed automatic transmission kickdown
597 - Engine fuse box
645 - Passenger compartment connection unit
754 - Electrical/hydraulic interface
779 - Automatic transmission multifunction switch
780 - Automatic transmission turbine or vehicle speed sensor
781 - Line pressure sensor
R22 - Engine/automatic transmission
R34 - Engine/dashboard
MH - Engine electric earth
MJ - Front right pillar electric earth
23-27