Page 71 of 128

AUTOMATIC TRANSMISSION
Fault finding – Conformity check23A
23A - 71V4 MR-372-J84-23A050$462.mif
SIEMENS TA2000
Vdiag No.: 10-11-15
SUB-FUNCTION: LOCKUP/UNLOCKING
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
1Rotation speedsPR006:Engine speed 0 rpmIn the event of a
fault, consult the
interpretation of this
parameter.
PR007: Turbine speed0 rpmIn the event of a
fault, consult the
interpretation of this
parameter.
PR128:Engine/turbine speed
difference0 rpmIn the event of a
fault, consult the
interpretation of this
parameter.
2Oil pressure PR003:Oil pressure X < 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.
3Torque
converterET071:Torque converterINACTIVEIn the event of a
fault, refer to the
interpretation of this
status.
4Oil temperaturePR004:Gearbox oil
temperature - 10 < X < 150 ˚C
- 40 < X < 140 ˚C
ET010:Oil too hot signalYES/NOYES, if the oil
temperature is
> 140 ˚C
5Driving modeET079:Economy modeYES, if driving is
economical
NO, if driving is
'sporty'None.
Page 74 of 128

AUTOMATIC TRANSMISSION
Fault finding – Conformity check23A
23A - 74V4 MR-372-J84-23A050$462.mif
SIEMENS TA2000
Vdiag No.: 10-11-15
SUB-FUNCTION: CREEPING AT IDLE SPEED
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
1Oil pressurePR003:Oil pressureX < 0.2 barIn the event of a
fault, consult the
interpretation of this
parameter.
2Oil temperaturePR004:Gearbox oil
temperature-40 ˚C < X < 140 ˚C In the event of a
fault, consult the
interpretation of this
parameter.
3Engine speedPR006:Engine speed0 rpmIn the event of a
fault, consult the
interpretation of this
parameter.
4Engine speedPR007:Turbine speed0 rpmIn the event of a
fault, consult the
interpretation of this
parameter.
5Engine/turbine
speed differencePR128:Engine/turbine
speed difference0 rpmIn the event of a
fault, consult the
interpretation of this
parameter.
Page 76 of 128

AUTOMATIC TRANSMISSION
Fault finding – Status summary table23A
23A - 76V4 MR-372-J84-23A050$528.mif
SIEMENS TA2000
Vdiag No.: 10-11-15AUTOMATIC TRANSMISSION
Fault finding – Status summary table
*SV: solenoid valveTool status Diagnostic tool title
ET001Solenoid valve supply
ET003Brake light switch (opening)
ET004Brake light switch (closure)
ET010Oil too hot signal
ET012Gear lever position
ET013Gear engaged
ET020Exchanger flow control SV* control
ET021Sequence solenoid 1 control
ET022Sequence solenoid 2 control
ET023Sequence solenoid valve 3 control
ET024Sequence solenoid valve 4 control
ET025Sequence solenoid valve 5 control
ET026Sequence solenoid valve 6 control
ET071Torque converter
ET079Economy mode
ET083Old oil
ET097Manual mode
ET108Torque reduction
ET123Multifunction switch S2
ET124Multifunction switch S3
ET125Multifunction switch S4
ET126Multifunction switch P/N
ET127Lower sequential lever switch
ET128Upper sequential lever switch
ET142Brake pedal pressed
ET155Third gear hold contact
ET157Gear lever unlocking
MR-372-J84-23A050$528.mif
Page 80 of 128
AUTOMATIC TRANSMISSION
Fault finding – Interpretation of statuses23A
23A-80V4 MR-372-J84-23A050$594.mif
SIEMENS TA2000
Vdiag No.: 10-11-15
ET010
OIL TOO HOT SIGNAL
NOTESThere must be no present or stored faults.
This status means the oil temperature is above the normal operation temperature.
The status displays NO if the gearbox oil temperature is below 140˚C.
The status changes to YES when the gearbox oil temperature rises above 140˚C.
If the correct status is not displayed, use the interpretation of fault DF177 Automatic transmission overheating.
AFTER REPAIRRepeat the conformity check from the start.
DP0TA2000_V10_ET010/DP0TA2000_V11_ET010/DP0TA2000_V15_ET010
Page 84 of 128

AUTOMATIC TRANSMISSION
Fault finding – Interpretation of statuses23A
23A-84V4 MR-372-J84-23A050$594.mif
SIEMENS TA2000
Vdiag No.: 10-11-15
* EV: Solenoid valve.ET020
EXCHANGER FLOW CONTROL SOLENOID VALVE*
NOTESThere must be no present or stored faults.
The exchanger flow control solenoid valve is ACTIVE when the gearbox oil temperature exceeds 100˚C
and the engine speed exceeds 2000 rpm.
Otherwise the solenoid valve remains inactive.
Run command AC024 Actuator sequential control and check that the activation status changes from INACTIVE
to ACTIVE.
When powered, if the solenoid valve is ACTIVE the voltage should be 0 V.
When powered, if the solenoid valve is INACTIVE the voltage should be 12 V.
Reconnect the computer.
Activate the solenoid valves with command AC024 Actuator sequential control and check the solenoid valve
current.
If the current is 260 mA, the solenoid valve is working properly.
If the current is weaker, check the computer connections and harness up to the exchanger flow solenoid valve.
If the status of the command fails to change, use the interpretation of fault DF017 Exchanger flow solenoid valve
circuit.
If the fault is still present after the fault finding procedure for fault DF017 Exchanger flow solenoid valve circuit
has been followed, contact your Techline.
AFTER REPAIRRepeat the conformity check from the start.
Make sure that shifting up and down through each gear works properly.
DP0TA2000_V10_ET020/DP0TA2000_V11_ET020/DP0TA2000_V15_ET020
Page 100 of 128
AUTOMATIC TRANSMISSION
Fault finding – Parameter summary table23A
23A - 100V4 MR-372-J84-23A050$660.mif
SIEMENS TA2000
Vdiag No.: 10-11-15
Tool parameter Diagnostic tool title
PR001Coolant temperature
PR003Oil pressure
PR004Gearbox oil temperature
PR006Engine speed
PR007Turbine speed
PR008Computer feed voltage
PR128Engine/turbine speed difference
PR135Standard pedal position
PR138Reference pressure
PR146Difference between reference and pressure
Page 102 of 128

AUTOMATIC TRANSMISSION
Fault finding – Parameter interpretation23A
23A - 102V4 MR-372-J84-23A050$726.mif
SIEMENS TA2000
Vdiag No.: 10-11-15
PR003
OIL PRESSURE
NOTESThere must be no present or stored faults.
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.
Use the Universal bornier Elé. 1681 to check the insulation, continuity and the absence of interference resistance
on the following connections:
●Connection code 5U between components 119 and 781.
●Connection code 5W between components 119 and 781.
●Connection code 5V between components 119 and 781.
●Connection code 5AZ, between components 119 and 754.
●Connection code 5BA between components 119 and 754.
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.
Reconnect the modular connector.
Measure the resistance of component 781 between the following connections:
●Connection code 5U.
●Connection code 5W.
The value should be approximately 20 kΩ.
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.
If the value is not correct, replace the sensor.
Measure the resistance of component 754 between the following connections:
●Connection code 5AZ.
●Connection code 5BA.
The value should be approximately 1 Ω ± 0.2 Ω at 20 ˚C.
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.
If the value is not correct, the solenoid valve or the electric/hydraulic interface harness is damaged.
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.
AFTER REPAIRRepeat the conformity check from the start.
DP0TA2000_V10_PR003/DP0TA2000_V11_PR003 /DP0TA2000_V15_PR003
Page 103 of 128

AUTOMATIC TRANSMISSION
Fault finding – Parameter interpretation23A
23A - 103V4 MR-372-J84-23A050$726.mif
SIEMENS TA2000
Vdiag No.: 10-11-15
PR003
CONTINUED
See the Taking line pressure section of the Workshop Repair Manual.
Set up the pressure gauge for a line pressure reading.
With a warm engine and the gearbox oil temperature between 60 and 80 ˚C, check the difference between the line
pressure sensor (PR003) and the pressure gauge under the following conditions:
–with the engine stopped, the pressure gauge should indicate a residual pressure of about 0.2 bar.
If the sensor reading differs by more than 0.2 bar, replace the sensor.
–with the engine running at about 1200 rpm the pressure gauge reading should reach 7 bar.
If the sensor reading differs by more than 0.8 bar, replace the sensor.
Warm engine with gearbox oil temperature between 60 and 80 ˚C.
Take the line pressure readings under the following conditions:
–with the gear lever in P or N and engine speed at 2000 rpm the pressure should be between 2.6 and 3.2 bar.
–with the gear lever at R and engine speed at 2000 rpm, the pressure should be above 4 bar.
–with the gear lever at D and engine speed at 2000 rpm, the pressure in first gear should be greater than 7 bar.
If the values are not correct, there is a fault inside the gearbox.
AFTER REPAIRRepeat the conformity check from the start.