1995 RENAULT MEGANE SCENIC automatic transmission

AUTOMATIC TRANSMISSION
Wiring
23
Removing the wiring assembly is specific to the
AD4 A4.2.
REMOVAL
Put the vehicle on a two post lift.
Disconnect the battery.
Remove the front left hand wheel.
From the wheel arch:
Remove:
- the earth wire from the multifunction sensor,
- the multifunction sensor mounting bolt (A).
On the vehicle:
- position the lifting plate (tool made locally as
described on the next page).
99586R1
99182S
99613S
98750R1
Remove the engine torque traction link on the
gearbox side.
Remove the speed sensor (mounting bolt (B)).
Remove gear selector control ball joint (C).
Remove all the wiring assembly, taking note of its
position and mountings so that is refitted
correctly.
Disconnect the 52 track connector and the
connector in the inter engine unit. Fit the engine support tool with the support
bracket on the left hand side.
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AUTOMATIC TRANSMISSION
Wiring
23
There are two possible solutions for manufactu-
ring this plate.
1)By modifying the existing plate on the E7J en-
gine (air filter support plate mounted onto the
cylinder head).
2)By having it manufactured locally
Parts list: - 1 plate of thickness 4 or
5 mm in semi-hard steel,
-
2 HEX M8 × 20 bolts (collar
bolts).
99613S1
99585R
Disconnect the connectors from the pressure sen-
sor and the diagnostic/injection socket.
Disconnect the sealed connector switch.
Remove the wiring.
99613S2
REFITTING
Replace the wiring without securing it.
Refit:
- the speed sensor,
- the multifunction sensor.
Refit the mounting on the gearbox side.
Remove the engine support tool.
Reconnect all the components.
Secure the wiring using its clips.
LIFTING PLATE
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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
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AUTOMATIC TRANSMISSION
Wiring diagram
23
98463S
23-28

AUTOMATIC TRANSMISSION
Checking the "timing point" on the converter
23
Put the vehicle on a two post lift.
Lift the vehicle until the wheels are a few centime-
tres off the ground.
Connect the
XR25.
Put the
ISO switch on S8.
Enter the A4.2 transmission code :
D14
then #06 to display the engine speed.
Accelerate fully with the brake fully on.
The engine speed should stabilise to :
-K7M engine: 2430 rpm.
If this value is not correct, replace the converter.
A timing point which is more than 200 rpm. below
the specified value requires the automatic trans-
mission to be replaced.
NOTE : for all diagnostic questions, refer to MR
TA.A, "General".
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37
MECHANICAL ELEMENT CONTROLS
Gear selectorAUTOMATIC
TRANSMISSION
AD4