gearbox RENAULT SCENIC 2009 J84 / 2.G Automatic Transmission AJ0 BVA Workshop Manual

AUTOMATIC TRANSMISSION
Fault finding - Role of components
23A
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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 - Replacement of components
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Vdiag No.: 04, 05AUTOMATIC TRANSMISSION
Fault finding - Replacement of components
*sig.: signal
*EVS1 = shift solenoid valve 1
*EVS2 = shift solenoid valve 2
*LS = line pressure regulation solenoid valveTool fault Diagnostic tool title Defect modes
DF023Transmission oil temperature sensor
circuit–in the event of open circuit or short circuit+:
If the fault occurs while driving, the
transmission engages fixed 5
th gear.
Restarting is in 3rd gear.
–in the event of short circuit-:
No defect mode.
DF038Turbine speed sensor circuit If the fault occurs while driving:
Gear fixed. Restarting is in fixed 3
rd gear.
DF067Lever switch circuit No defect mode.
DF084Multiplex network If the fault occurs while driving, the
transmission engages fixed 5
th gear.
Restarting is in 3rd gear.
DF085EVS1 shift solenoid valve circuit – in the event of open circuit or short circuit+:
Fixed 5
th gear engaged.
Restarting is in 5th gear.
–in the event of short circuit-:
No defect mode.
DF086ESV2* shift solenoid valve circuit Fixed 5
th gear engaged.
Restarting is in 3rd gear.
DF091"LS"* pressure regulation solenoid
valve circuitNo defect mode.
DF093Manual sequential controls circuit No defect mode.
DF095Gear lever lock electromagnet circuit No defect mode.
DF097Converter lockup No defect mode.
DF108Effective average torque multiplex
signalIf the fault occurs while driving, the gearbox
engages fixed 5
th gear. Restarting is in 3rd
gear.
DF171Vehicle speed sensor circuit If the fault occurs while driving:
Gear fixed. Restarting is in fixed 3
rd gear.
DF178Accelerator pedal position No defect mode.
DF183No UCH multiplex signal. No defect mode.
DF186No injection multiplex signal If the fault occurs while driving, the gearbox
engages fixed 5
th gear.
Restarting is in 3rd gear.
DF230Signal: multiplex speed vehicle invalid No defect mode.
MR-372-J84-23A000$270.mif

AUTOMATIC TRANSMISSION
Fault finding - Replacement of components
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Vdiag No.: 04, 05
Tool fault Diagnostic tool title Defect modes
DF236Invalid engine speed multiplex signal No defect mode.
DF238Signal: raw engine torque multiplex
signal*If the fault occurs while driving, the gearbox
engages fixed 5
th gear.
Restarting is in 3rd gear.
DF256Erratic gear jumping – If caused by brake 2 solenoid valve, system
switches to fixed 3
rd or 5th gear safe mode.
–If caused by clutch 2 solenoid valve, system
switches to fixed 2
nd or 6th gear safe mode.
–If caused by clutch 3 solenoid valve, system
switches to fixed 2
nd, 3rd or 5th gear safe
mode.
–If caused by clutch 1 solenoid valve, system
switches to fixed 3
rd, 5th or 6th gear safe
mode.
In all cases, restarting is in 3
rd gear.
DF273Clutch 1 solenoid valve circuit If the fault occurs while driving, the
transmission engages fixed 5
th gear.
Restarting in fixed 5th gear (no more gear
changes).
DF274Clutch 2 solenoid valve circuit – in the event of open circuit or short circuit+:
No defect mode.
–in the event of short circuit-:
If the fault occurs while driving, the
transmission engages fixed 5
th gear.
Restarting in fixed 3rd gear (no more gear
changes)
DF275Clutch 3 solenoid valve circuit – in the event of open circuit or short circuit+:
No defect mode.
–in the event of short circuit-:
If the fault occurs while driving, the
transmission engages fixed 5
th gear.
Restarting in fixed 5th gear (no gear change)
DF289Automatic transmission multiplex
signalNo defect mode.
DF290Multiplexed ABS signal No defect mode.
DF298Gear shifts – If caused by brake 2 solenoid valve, system
switches to fixed 6
th gear safe mode.
–If caused by clutch 2 solenoid valve, system
switches to fixed 5
th gear safe mode.
Restarting in 3rd gear.
–If caused by clutch 3 solenoid valve, system
switches to fixed 5
th gear safe mode.

AUTOMATIC TRANSMISSION
Fault finding - Replacement of components
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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
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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
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AUTOMATIC TRANSMISSION
Fault finding - Interpretation of parameters
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Vdiag No.: 04, 05AUTOMATIC TRANSMISSION
Fault finding - Interpretation of parameters
PR004
TRANSMISSION OIL TEMPERATURE
PARAMETER
DEFINITIONThis parameter shows the gearbox oil temperature in ˚C.
NOTESSpecial notes:
Only perform these tests if the parameters do not correspond with the system operation
programming.
No faults should be present or stored.
Conformity check with engine running, engine coolant temperature > 80 ˚C
With the engine running at idle speed, the gearbox oil temperature varies in accordance with the engine coolant
temperature.
- 40 ˚C > PR004 > 150 ˚C
In the event of a fault, consult the interpretation of fault DF023 Gearbox oil temperature sensor.
Sensor electrical conformity
Disconnect the connector of component 119, measure the resistance of the oil temperature sensor
(on the connector of component 119) 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.
In the event of a fault, consult the interpretation of fault DF023 Gearbox oil temperature sensor.
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
AJ0_V04_PR004/AJ0_V05_PR004
MR-372-J84-23A000$765.mif

AUTOMATIC TRANSMISSION
Fault finding - Interpretation of parameters
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Vdiag No.: 04, 05
PR007
TURBINE SPEED
Note:
Parameter PR007 "Turbine speed" applies to the following sub-functions:
"Gear changes".
"Torque activation".
PARAMETER
DEFINITIONThis parameter shows the gearbox turbine speed in rpm.
NOTESSpecial notes:
Only perform these tests if the parameters do not correspond with the system operation
programming.
No faults should be present or stored.
Conformity check with engine stopped and ignition on
PR007 = 0 rpm
In the event of a fault, consult the interpretation of fault DF038 Turbine speed sensor circuit.
Conformity check with engine running, engine coolant temperature > 80 ˚C
PR007 "Turbine
speed"PR006 "Engine
speed"PR004 "Gearbox
oil temperature"ET013 "Gear
engaged"ET012 "Gear lever
position"
0 rpm≈ 800 rpm 25 ˚C 1 D
≈ 660 rpm≈ 800 rpm 25 ˚CDISENGAGE
(clutch
disengagement)D
In the event of a fault, consult the interpretation of fault DF038 Turbine speed sensor circuit.
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
AJ0_V04_PR007/AJ0_V05_PR007

AUTOMATIC TRANSMISSION
Fault finding - Interpretation of parameters
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Vdiag No.: 04, 05
PR106
EFFECTIVE ENGINE TORQUE
Note:
Parameter PR106 "Effective engine torque" applies to the following sub-functions:
"Gear changes".
"Torque activation".
PARAMETER
DEFINITIONThis parameter indicates the effective engine torque in Nm. This signal is supplied to
the gearbox computer by the injection computer.
NOTESSpecial notes:
Only perform these tests if the parameters do not correspond with the system operation
programming.
No faults should be present or stored.
Conformity check with engine ignition on and engine running at idle speed.
PR006 "Engine
speed"PR007 "Turbine
speed"PR106 "Effective
engine torque"PR153 "Slow
torque"PR154 "Fast
torque"
0 rpm 0 rpm 140 Nm 360 Nm - 32 Nm
≈ 802 rpm≈ 704 rpm≈ 34 Nm≈ 360 Nm≈ - 30 Nm
In the event of a fault, carry out a multiplex network test (see 88B, Multiplexing).
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
AJ0_V04_PR106/AJ0_V05_PR106