2009 RENAULT SCENIC oil change

AUTOMATIC TRANSMISSION
Fault finding - Role of components
23A
23A - 9V3 MR-372-J84-23A000$135.mif
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Vdiag No.: 04, 05AUTOMATIC TRANSMISSION
Fault finding - Role of components
Role of main automatic transmission components
Automatic transmission computer:
The gearbox computer is used to manage the entire system.
Its role is to define the optimum operating mode for the automatic transmission (modify the torque transmitted to the
drive wheels by the automatic transmission), inform the driver (instrument panel, information display, buzzer) and
communicate with the other computers.
To carry out this function, the transmission computer takes account of:
–the operation of the gearbox,
–signals exchanged with other computers,
–driver requests.
Transmission oil temperature sensor:
Its role is to inform the automatic transmission computer of the transmission oil temperature.
Transmission input speed sensor:
Its role is to inform the automatic transmission computer of the turbine speed.
Transmission output speed sensor:
Its role is to inform the automatic transmission computer of the vehicle speed.
Brake light switch:
Its role is to inform the automatic transmission computer that the driver has depressed the brake pedal.
Multifunction switch:
Its role is to inform the automatic transmission computer of the gear lever position.
Shift-lock:
The role of this function is to lock the lever in position "P" and to immobilise the vehicle when stationary.
Solenoid valves:
The solenoid valves are fitted in the factory and cannot be removed from the hydraulic distributor to ensure optimum
gearbox operation, therefore they cannot be replaced separately.
The automatic transmission has two types of solenoid valve:
–2 "all or nothing" solenoid valves,
–6 "progressive" solenoid valves.
Of these 8 solenoid valves, 7 are used to control gear changes in automatic and manual modes, and one solenoid
valve controls the oil pressure in the automatic transmission hydraulic distributor.
Instrument panel display:
The purpose of this function is to manage the transmission of multiplex line signals required for the instrument panel
display.
On the instrument panel:
–a fault warning light,
–a message on the instrument panel in case of irregularity,
–an information display: gear lever position/gear engaged/brake pedal depressed indicator light/lever position in P
or N request indicator light.
On the gear lever:
–Position: P / R / N / D / M+/-,
–Shift-lock: lever lock.
MR-372-J84-23A000$135.mif

AUTOMATIC TRANSMISSION
Fault finding - Role of components
23A
23A - 13V3 MR-372-J84-23A000$225.mif
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Vdiag No.: 04, 05
"Automatic transmission management" FUNCTION:
Purpose of this function:
This function enables the automatic transmission computer to define the gear change programs.
Position of multifunction switch and its associated tracks on the computer:Multifunction switch:
Internal switches
(see table below)
"Automatic
transmission
management"
function:Modes: automatic or
manual
Oil temperature
sensor: Oil
temperatureGear upshifts or
downshifts in
manual position
Shift pattern control
(on lever)
M+, M-Gear lever position:
P, R, N, D
Position
TrackPRND
2
1
3
4
56

AUTOMATIC TRANSMISSION
Fault finding - Role of components
23A
23A - 16V3 MR-372-J84-23A000$225.mif
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Vdiag No.: 04, 05
"PRESSURE CONTROL" FUNCTION:
Purpose of this function:
The purpose of this function is to regulate the oil pressure inside the transmission hydraulic distributor.
"Lever selection"
function
"Pressure
control"
function Oil temperature
Line pressure solenoid
valve
Vehicle speed
Turbine speed
–Accelerator pedal
position
–Engine speed
–Engine torqueCAN
"Gear change" function

AUTOMATIC TRANSMISSION
Fault finding - Role of components
23A
23A - 17V3 MR-372-J84-23A000$225.mif
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Vdiag No.: 04, 05
"CONVERTER lock-up" FUNCTION:
Aim of this function: The aim of this function is to lock up the converter.
–lock-up/release definition:
The converter is a hydraulic clutch which provides a hydraulic connection between the engine and the automatic
transmission pressure plate.
The purpose of the lock-up function is to lock the turbine and the converter casing together, transforming a hydraulic
connection into a mechanical connection. The role of the lock-up function is to prevent slipping losses.
EVS2*: sequence solenoid valve 2."Lever selection"
function
"Converter
lock-up"
functionLock-up and brake 1
solenoid valve
Solenoid valve EVS2*
Oil temperature
Vehicle speed
Turbine speed
Brake pedal action
"Torque management"
function
–Accelerator pedal
position
–Engine speed
–Engine torqueCAN
"Gear change" function

AUTOMATIC TRANSMISSION
Fault finding - Replacement of components
23A
23A-24V3 MR-372-J84-23A000$270.mif
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Vdiag No.: 04, 05
Replacing the transmission computer:
Remove the automatic transmission computer (see MR 370 mechanical, 23A, Automatic transmission,
Automatic transmission computer, Removal - Refitting).
Refit the automatic transmission computer (see MR 370 mechanical, 23A, Automatic transmission,
Automatic transmission computer, Removal - Refitting).
Establish dialogue with the diagnostic tool.
Use command VP001 Enter VIN.
Run command VP009 Write last After-Sales Service operation date.
Do not carry out any automatic programming if replacing the automatic transmission computer. Automatic
programming is finalised when the vehicle is driven.
In order to optimise the automatic programming before delivering the vehicle to the customer, apply the
"Programming procedure" shown below.
Replacing the hydraulic distributor:
Remove the transmission hydraulic distributor (see MR 370 mechanical, 23A, Automatic transmission,
Hydraulic distributor, Removal - Refitting).
Refit the transmission hydraulic distributor (see MR 370 Mechanical, 23A, Automatic transmission, Hydraulic
distributor, Removal - Refitting).
Replacing the automatic transmission
Remove the transmission (see MR 370,Mechanical, 23A, Automatic transmission, Removal - Refitting).
Refit the transmission (see MR 370, Mechanical, 23A, Automatic transmission, Removal - Refitting).
Establish communication with the diagnostic tool.
Initialise all the programming, use the command RZ009 Self-adapting clearing (Vdiag05 only).
Run command VP009 Write last After-Sales Service operation date.
The self-programming functions are performed when the vehicle is being driven.
In order to optimise the automatic programming before delivering the vehicle to the customer, apply the
"Programming procedure" shown below.
* APV: After-SalesPROGRAMMING PROCEDURE:
Programming conditions:
The automatic gearbox oil temperature should be between 60˚C and 100˚C.
Stationary, engine running, brake pedal depressed:
Engage neutral at least 5 times to consolidate the programming.
While driving:
Engage the same gear at least 5 times (i.e. in the same conditions) to consolidate the programming.
Note:
Gear changes are slow and harsh the first few times the vehicle is driven, until the automatic transmission computer
has carried out its automatic programming.
During upshifts and downshifts, the system analyses variations in oil pressure, components (play in the brakes and
clutches, changes to spring stiffness due to ageing) and input torque, then corrects them in order to maintain the
quality of gear changes.
The system analyses the turbine speed during the 3 phases of drag reduction (selection of Neutral when stationary,
regulation during drag reduction and deselection of Neutral) and corrects this speed by adjusting the converter
lock-up solenoid valve pressure.

AUTOMATIC TRANSMISSION
Fault finding - Interpretation of faults
23A
23A - 28V3 MR-372-J84-23A000$405.mif
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Vdiag No.: 04, 05AUTOMATIC TRANSMISSION
Fault finding - Interpretation of faults
DF023
PRESENT
OR
STOREDGEARBOX OIL TEMPERATURE SENSOR CIRCUIT
1.DEF: Open circuit or short circuit
NOTESConditions for applying fault finding procedures to stored faults:
The fault is declared present after:
–in the event of open circuit or short circuit+:
–+ after ignition feed,
–oil temperature ≤ - 40 ˚C,
–vehicle speed > 6 mph (10 km/h).
–in the event of short circuit-:
–+ after ignition feed,
–oil temperature > 180 ˚C,
–vehicle speed > 6 mph (10 km/h).
–accelerator pedal > 12.5 % and engine speed > 305 rpm.
(detection time in the event of short circuit- is 10 minutes).
Effect on system:
–in the event of open circuit or short circuit+:
Gear change quality is reduced.
lock-up is inhibited.
–in the event of short circuit-:
The transmission operates as if the temperature had increased.
Customer complaint:
–in the event of open circuit or short circuit+:
If the fault occurs while driving, the transmission engages fixed 5th gear.
Restarting is in 3rd gear.
Gear change quality is reduced.
Fault warning light on
–in the event of short circuit-:
Fault warning light on
Use the Wiring Diagrams Technical Note, SCENIC II ph2.
Check that the coolant temperature (see 13B, Diesel injection, EDC16, CP33 M9R 721 Conformity check)
is ≥ - 40 ˚C (the transmission oil temperature sensor is within its operating range).
If the oil temperature ≤ - 40 ˚C, move on to step 1.
If the oil temperature is ≥ - 40 ˚C, deal with the fault; move on to step 2.
AFTER REPAIRDeal with any other faults. Clear the fault memory.
Switch off the ignition, wait 1 minute and carry out a road test followed by another
check with the diagnostic tool.
AJ0_V04_DF023/AJ0_V05_DF023
MR-372-J84-23A000$405.mif

AUTOMATIC TRANSMISSION
Fault finding - Interpretation of faults
23A
23A - 30V3 MR-372-J84-23A000$405.mif
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Vdiag No.: 04, 05
DF023
CONTINUED 2
Stage 4:
Measure the resistance of the oil temperature sensor (on connector R22) between the following connections:
●Connection code 5BZ,
●Connection code 5BY.
The resistance should be between:
–4.208 ± 0.42 kΩΩ Ω Ω
at 20 ˚C,
–1.947 ± 0.19 kΩΩ Ω Ω
at 40 ˚C,
–0.988 ± 0.09 kΩΩ Ω Ω
at 60 ˚C,
Is the resistance correct?
If YES, and if the fault is still present, contact the Techline.
If NO, move on to step 5.
Stage 5:
Drain the automatic transmission (see, MR 370, Mechanical, 23A Automatic transmission, Oil change)
and remove the transmission housing (see, MR 370, Mechanical, 23A Automatic transmission, Hydraulic
distributor).
Measure the resistance of the transmission temperature sensor (on the connector of the internal wiring
harness on the transmission) between the following connections:
●Connection code 5BZ,
●Connection code 5BY.
The resistance should be between:
–4.208 ± 0.42 kΩΩ Ω Ω
at 20 ˚C,
–1.947 ± 0.19 kΩΩ Ω Ω
at 40 ˚C,
–0.988 ± 0.09 kΩΩ Ω Ω
at 60 ˚C,
Is the resistance correct?
If YES, move on to step 6.
If NO, replace the internal wiring harness on the automatic transmission.
Stage 6:
Measure the continuity and insulation of the following connections:
●Connection code 5BZ,
●Connection code 5BY.
Between components R22 and the internal connector in the transmission.
Are the continuity and insulation correct?
If YES, contact the Techline.
If NO, replace the wiring harness between connector R22 and the internal connector in the transmission.
AFTER REPAIRDeal with any other faults. Clear the fault memory.
Switch off the ignition, wait 1 minute and carry out a road test followed by another
check with the diagnostic tool.

AUTOMATIC TRANSMISSION
Fault finding - Interpretation of faults
23A
23A - 39V3 MR-372-J84-23A000$405.mif
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Vdiag No.: 04, 05
DF085
CONTINUED 2
Stage 3:
Measure the resistance of sequence solenoid valve 1 (on connector R22) between the following connections:
●Connection code 5CX.
●Connection code 5LW.
The resistance must be 28 ΩΩ Ω Ω
± 2.8 ΩΩ Ω Ω
at 20 ˚C.
Is the resistance correct?
If YES, and if the fault is still present, contact the Techline.
If NO, move on to step 4.
Stage 4:
Drain the automatic transmission (see, MR 370, Mechanical, 23A Automatic transmission, Oil change)
and remove the transmission housing (see, MR 370, Mechanical, 23A Automatic transmission, Hydraulic
distributor).
Disconnect the connector of component 754, measure the resistance of sequence solenoid valve 1
(on the connector of the internal wiring harness of the transmission) between the following connections:
●Connection code 5CX.
●Connection code 5LW.
The resistance must be 28 ΩΩ Ω Ω
± 2.8 ΩΩ Ω Ω
at 20 ˚C.
Is the resistance correct?
If YES, move on to step 5.
If NO, move on to step 6.
Stage 5:
Measure the continuity and insulation of the following connections:
●Connection code 5CX.
●Connection code 5LW.
Between components R22 and the internal connector in the transmission.
Are the continuity and insulation correct?
If YES, contact the Techline.
If NO, replace the intermediate wiring harness between connector R22 and the internal connector in the
transmission.
AFTER REPAIRDeal with any other faults. Clear the fault memory.
Switch off the ignition, wait 1 minute and carry out a road test followed by another
check with the diagnostic tool.