oil pressure RENAULT SCENIC 2008 J84 / 2.G Automatic Transmission Siemens TA2000 Workshop Manual

AUTOMATIC TRANSMISSION
Fault finding – System operation23A
23A-9V4 MR-372-J84-23A050$132.mif
SIEMENS TA2000
Vdiag No.: 10-11-15
MODULAR CONNECTOR
AMultifunction switch
BHydraulic electronic interface
COil pressure sensor
DTurbine speed sensor
EExchanger flow lock-up solenoid valveFemale connection
(connector leading to switch, interface) sensors,
exchanger flow lock-up solenoid valve)Male connection
(connector coming from computer)

AUTOMATIC TRANSMISSION
Fault finding – System operation23A
23A-10V4 MR-372-J84-23A050$132.mif
SIEMENS TA2000
Vdiag No.: 10-11-15
COMPUTER INPUTS AND OUTPUTS
INPUTS OUTPUTS
Diagnostic socket
Automatic
transmission
computer
Solenoid valve control
+ battery feed
+ after ignition feed + warning lights display
Intersystem signals + diagnostic
socketIntersystem signal + diagnostic
socket
Driver actions (brake light switch,
gear selector, multifunction
switch)Gear lever lock

AUTO sensors (turbine speed, oil
pressure, oil temperature)Reversing lights
Earth
Wire connection
Multiplexed connections

AUTOMATIC TRANSMISSION
Fault finding – Fault summary table23A
23A - 15V4 MR-372-J84-23A050$264.mif
SIEMENS TA2000
Vdiag No.: 10-11-15AUTOMATIC TRANSMISSION
Fault finding – Fault summary table
* EVS: Sequence solenoid valvesTool fault Diagnostic tool title
DF002 Computer
DF003 Analogue sensor feed
DF005 Oil pressure sensor circuit
DF009 Multifunction switch prohibited position
DF012 Solenoid valve feed
DF016 Lockup solenoid valve circuit
DF017 Exchanger flow rate solenoid valve circuit
DF018 Lockup slip
DF023 Gearbox oil temperature sensor circuit
DF029 Multifunction switch in unstable position
DF036 Pressure regulating solenoid valve circuit
DF038 Turbine speed sensor circuit
DF048 Vehicle speed signal
DF049 Pressure regulation
DF055 Injection →→ → →
automatic transmission connection
DF064 Display circuit
DF085 EVS*1 sequence solenoid valve circuit
DF086 EVS*2 sequence solenoid valve circuit
DF087 EVS*3 sequence solenoid valve circuit
DF088 EVS*5 sequence solenoid valve circuit
DF089 EVS*4 sequence solenoid valve circuit
DF093 Sequential gear lever circuit
DF095 Shift lock electromagnet circuit
DF109 Engine torque multiplex signal
DF112 *EVS6* sequence solenoid valve circuit
DF114 Pedal position multiplex signal
MR-372-J84-23A050$264.mif

AUTOMATIC TRANSMISSION
Fault finding – Interpretation of faults23A
23A-19V4 MR-372-J84-23A050$330.mif
SIEMENS TA2000
Vdiag No.: 10-11-15
DF005
PRESENT
OR
STOREDOIL PRESSURE SENSOR CIRCUIT
CO.0 : Open circuit or short circuit to earth
NOTESConditions for applying the fault finding procedure to stored faults:
The fault appears after a timed period of 10 seconds with the engine running
at 2000 rpm.
Special notes:
Use bornier Elé. 1681 for all operations on the computer connectors.
Disconnect the battery.
Disconnect the modular connector, and check the cleanliness and condition of the connections.
Disconnect the computer. Check the cleanliness and condition of the connections.
Check the insulation, continuity and the absence of interference resistance to earth, to + 12 V of the following
connection:
●Connection code 5U between components 119 and 781.
●Connection code 5W between components 119 and 781.
●Connection code 5V between components 119 and 781.
If the connection(s) are faulty and if there is a repair method (see Technical Note 6015A, Electrical wiring repair,
Wiring: Precautions for repair), repair the wiring, otherwise replace the wiring.
Reconnect the modular connector.
Measure the resistance of component 781 between connections 5V and 5W on the computer connector
(female connector).
If the connection or connections are faulty and there is a repair procedure (see Technical Note 6015A, Electrical
wiring repair, Wiring: Precautions for repair), repair the wiring, otherwise replace it.
Replace the sensor if the resistance is not approximately 20 kΩΩ Ω Ω
.
AFTER REPAIRDeal with any other faults. Clear the fault memory.
Switch off the ignition and carry out a road test followed by a test with the
diagnostic tool.
DP0TA2000_V10_DF005/DP0TA2000_V11_DF005/DP0TA2000_V15_DF005

AUTOMATIC TRANSMISSION
Fault finding – Interpretation of faults23A
23A-26V4 MR-372-J84-23A050$330.mif
SIEMENS TA2000
Vdiag No.: 10-11-15
DF018
PRESENT
OR
STOREDCONVERTER LOCKUP SLIPPAGE
NOTESCarry out injection system fault finding and check that it is operating correctly.
If the following faults are present or stored, deal with them first:
–DF003 Analogue sensor supply.
–DF005 Oil pressure sensor circuit
–DF016 Converter lock-up solenoid valve circuit.
–DF036 Pressure modulating solenoid valve circuit.
–DF038: Turbine speed sensor circuit.
–DF049 Gearbox oil pressure regulation.
Conditions for applying the fault finding procedure to stored faults:
The fault is reported present after driving in fixed 3
rd gear with speed stabilisation for
more than 3 minutes.
To check that there are no faults with the converter lock-up solenoid valve, use the interpretation of fault
DF016 Converter lock-up solenoid valve circuit.
To check that there are no faults with the turbine speed sensor, apply the interpretation of fault DF038 Turbine
speed sensor circuit.
Check gearbox oil grade and level.
If an operation is necessary (see MR 364 Mechanical, 23A, Automatic transmission, Filling-Levels
(for Mégane II) and MR 370 Mechanical, 23A, Automatic transmission, Draining-Filling (for Scénic II)).
Check that the transmission is not leaking oil.
AFTER REPAIRDeal with any other faults. Clear the fault memory.
Switch off the ignition and carry out a road test followed by a test with the diagnostic
tool.
DP0TA2000_V10_DF018/DP0TA2000_V11_DF018/DP0TA2000_V15_DF018

AUTOMATIC TRANSMISSION
Fault finding – Interpretation of faults23A
23A-27V4 MR-372-J84-23A050$330.mif
SIEMENS TA2000
Vdiag No.: 10-11-15
DF018
CONTINUED
Carry out a conformity check to detect any possible faults.
Check the setting point of the converter (see MR 364 Mechanical, 23A, Automatic transmission, Checking the
setting point of the converter (for Mégane II and Scénic II)
If the setting point value is not correct, carry out the following checks:
–Check the oil pressure using PR003 Oil pressure:
–Warm engine with gearbox oil temperature between 65 and 90˚C.
–Take the line pressure reading under the following 3 conditions:
Important
The vehicle must be stationary: handbrake on and brake pedal depressed, no accessories operating
(e.g.: air conditioning)
1Engine speed idling:
Shift the gear lever to R, N and D, the pressure reading must be greater than 2.5 bar.
2Engine speed at 1200 rpm:
–gear lever in R position, the pressure reading must be greater than 4 bars.
–gear lever in D position, the pressure reading in first gear must be greater than 5.5 bars.
3Engine speed at 2200 rpm:
–gear lever in R position, the pressure reading must be greater than 11 bars.
–gear lever in D position, the pressure reading in first gear must be greater than 11 bars.
If the line pressure value read under one of these 3 conditions is incorrect, replace the line pressure sensor.
If the line pressures recorded under these 3 conditions are good, then the pressure sensor is operating correctly.
Replace the pressure regulating solenoid valve.
If the fault is still present after the pressure regulating solenoid valve has been replaced, replace the hydraulic
distributor and during refitting, take into account Technical Note 4194A Automatic transmission indicator strip
flashing for the adjustment of the ball detent blade.
If the fault is still present, contact the Techline
AFTER REPAIRDeal with any other faults. Clear the fault memory.
Switch off the ignition and carry out a road test followed by a test with the diagnostic
tool.

AUTOMATIC TRANSMISSION
Fault finding – Interpretation of faults23A
23A-35V4 MR-372-J84-23A050$330.mif
SIEMENS TA2000
Vdiag No.: 10-11-15
DF049
PRESENT
OR
STOREDGEARBOX OIL PRESSURE REGULATION
1.DEF : Pressure regulation
NOTESCarry out injection system fault finding and check that it is operating correctly.
If the following faults are present or stored, deal with them first:
–DF003 Sensor feeds.
–DF005 Oil pressure sensor circuit.
–DF023 Gearbox oil temperature sensor circuit.
–DF036 Pressure modulating solenoid valve circuit.
–DF038: Turbine speed sensor circuit.
Conditions for applying the fault finding procedure to stored faults:
The fault is declared present after a road test.
To make sure there are no problems with the pressure lock-up solenoid valve, use the interpretation of fault DF036
Pressure regulating solenoid valve circuit.
Check gearbox oil grade and level.
If an operation is necessary (see MR 364 Mechanical, 23A, Automatic transmission, Filling-Levels
(for Mégane II) and MR 370 Mechanical, 23A, Automatic transmission, Draining-Filling (for Scénic II)).
Check that the gearbox is not leaking oil.
Carry out a conformity check to detect any possible faults.
AFTER REPAIRDeal with any other faults. Clear the fault memory.
Switch off the ignition and carry out a road test followed by a test with the diagnostic
tool.
DP0TA2000_V10_DF049/DP0TA2000_V11_DF049/DP0TA2000_V15_DF049

AUTOMATIC TRANSMISSION
Fault finding – Interpretation of faults23A
23A-36V4 MR-372-J84-23A050$330.mif
SIEMENS TA2000
Vdiag No.: 10-11-15
DF049
CONTINUED
●Check the oil pressure with the engine switched off using PR003 Oil pressure: if the pressure is greater than
0.2 bars, replace the pressure sensor.
●Warm engine with gearbox oil temperature between 65 and 90˚C.
●Take the line pressure reading under the following 3 conditions:
IMPORTANT
The vehicle must be stationary: handbrake on and brake pedal depressed, no accessories operating
(e.g.: air conditioning)
1Engine speed idling:
Shift the gear lever to R, N and D. The pressure reading must be greater than 2.5 bars.
2Engine speed at 1200 rpm:
–gear lever in R position, the pressure reading must be greater than 4 bars.
–gear lever in D position, the pressure reading in first gear must be greater than 5.5 bars.
3Engine speed at 2200 rpm:
–gear lever in R position, the pressure reading must be greater than 11 bars.
–gear lever in D position, the pressure reading in first gear must be greater than 11 bars.
If the line pressure value read under one of these 3 conditions is incorrect, replace the line pressure sensor.
If the line pressures recorded under these 3 conditions are good, then the pressure sensor is operating correctly.
Replace the pressure regulating solenoid valve.
If the fault is still present after the pressure regulating solenoid valve has been replaced, replace the hydraulic
distributor and during refitting, take into account Technical Note 4194A Automatic transmission indicator strip
flashing for the adjustment of the ball detent blade.
If the fault is still present, contact the Techline.
AFTER REPAIRDeal with any other faults. Clear the fault memory.
Switch off the ignition and carry out a road test followed by a test with the diagnostic
tool.

AUTOMATIC TRANSMISSION
Fault finding – Conformity check23A
23A - 65V4 MR-372-J84-23A050$462.mif
SIEMENS TA2000
Vdiag No.: 10-11-15
SUB-FUNCTION: CHANGING GEAR
NOTESOnly carry out this conformity check after a complete check with the diagnostic tool
(no present or stored faults).
Application conditions: engine stopped, ignition on.
The values indicated in this conformity check are given as examples.
Order FunctionParameter or Status
checked or ActionDisplay and Notes Fault finding
1Gear lever
positionET012:Gear lever positionP if selector is in
position P
N if selector is in
position N.
R if selector is in
position R.
D if selector is in
position D.
M if selector is in
position M.
M+ if selector is in
position M+.
M- if selector is in
position M-. In the event of a
fault, refer to the
interpretation of this
status.
2GearET013:Gear engaged"N" for neutral
"1" for 1
st unlocked
"2" for 2
nd unlocked
"R" for reverseIn the event of a
fault, refer to the
interpretation of this
status.
3Engine speedPR006:Engine speed0 rpmIn the event of a
fault, consult the
interpretation of this
parameter.
4Oil pressurePR003:Oil pressureX < 0.2 bar In the event of a
fault, consult the
interpretation of this
parameter.

AUTOMATIC TRANSMISSION
Fault finding – Conformity check23A
23A - 68V4 MR-372-J84-23A050$462.mif
SIEMENS TA2000
Vdiag No.: 10-11-15
SUB-FUNCTION: PRESSURE CONTROL
NOTESOnly carry out this conformity check after a complete check with the diagnostic tool
(no present or stored faults).
Application conditions: engine stopped, ignition on.
The values indicated in this conformity check are given as examples.
Order FunctionParameter or Status
checked or ActionDisplay and Notes Fault finding
1Gearbox ratioET013: Gear engagedN for neutral position
1 for 1
st unlocked
2 for 2nd unlocked
R for reverse gear
positionIn the event of a
fault, refer to the
interpretation of this
status.
2Engine speedPR006:Engine speed0 rpmIn the event of a
fault, consult the
interpretation of
fault DF115.
3Oil pressurePR003: Oil pressureX < 0.2 barIn the event of a
fault, consult the
interpretation of this
parameter.
PR138:Reference pressure21 bar None.
PR146:Difference between
reference and oil
pressureX = PR138 - PR003 None.
4Oil temperaturePR004:Gearbox oil
temperature- 40 < X < 140 ˚CIn the event of a
fault, consult the
interpretation of this
parameter.