Page 15 of 139

AUTOMATIC TRANSMISSION
Fault finding - Fault summary table23A
23A - 15V5 MR-372-J84-23A100$290.mif
SIEMENS TA2005
Vdiag No.: 14-18
Tool faultAssociated
DTCDiagnostic tool title
DF147 D122Invalid anticipated torque multiplex signal
DF177 0218Automatic transmission overheating
DF183 C140No UCH multiplex signal
DF185 C121No ABS/ESP multiplex signal
DF186 C100No injection multiplex signal
DF226 0841Automatic transmission internal pressure
DF227 D403Invalid UCH brake pedal multiplex signal
DF228 D22BInvalid ABS transverse acceleration multiplex signal
DF229 D208Invalid ABS brake multiplex signal
DF230 0720Invalid vehicle speed multiplex signal
DF231 D200Absent vehicle speed multiplex signal
DF232 0603Computer
DF233 0604Computer
DF234 0605Computer
DF235 D121Invalid pedal position multiplex signal
DF236 D11FInvalid engine speed multiplex signal
DF237 D100Invalid coolant temperature signal
DF238 D12BInvalid raw engine torque multiplex signal
DF239 D120Invalid actual engine torque multiplex signal
DF240 D220Invalid front right-hand wheel speed multiplex signal
DF241 D221Invalid front left-hand wheel speed multiplex signal
DF242 D225Invalid rear right-hand wheel speed multiplex signal
DF243 D226Invalid rear left-hand wheel speed multiplex signal
DF244 0715Turbine speed sensor signal
DF263 D12DInstantaneous maximum torque multiplex signal
Page 48 of 139

AUTOMATIC TRANSMISSION
Fault finding - Interpretation of faults
23A
23A-48V5 MR-372-J84-23A100$348.mif
SIEMENS TA2005
Vdiag No.: 14-18
DF177
PRESENT
OR
STOREDAUTOMATIC TRANSMISSION OVERHEATING
NOTESIf the following faults are present or stored, deal with them first:
–DF003 Analogue sensor supply.
–DF005 Oil pressure sensor circuit.
–DF016 Lock-up solenoid valve circuit.
–DF017 Exchanger flow solenoid valve circuit.
–DF023 Gearbox oil temperature sensor circuit.
–DF036 Pressure modulating solenoid valve circuit.
–DF131 Slipping.
–DF226 Automatic transmission internal pressure.
–DF237 Invalid coolant temperature signal.
Conditions for applying the fault finding procedure to stored faults:
The fault is declared present after a road test.
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, Oil change (for Scenic II)).
Check that the water-oil exchanger is not blocked.
Measure the resistance of component 754 between the following connections:
●connection code 5BC,
●connection code 5BB.
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 the wiring.
The resistance should be between:
2660 Ω < R < 2360 Ω at 20˚C and 327 Ω < R < 290 Ω at 80˚C.
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.
DP0TA2005_V14_DF177/DP0TA2005_V18_DF177
Page 64 of 139
AUTOMATIC TRANSMISSION
Fault finding - Interpretation of faults
23A
23A-64V5 MR-372-J84-23A100$406.mif
SIEMENS TA2005
Vdiag No.: 14-18
DF237
PRESENT
OR
STOREDINVALID COOLANT TEMPERATURE SIGNAL
1.DEF: Multiplex frames absent or values invalid (fault with the computer generating
the signal or multiplex line connection fault)
NOTESNone.
Run a multiplex network test (see 88B, Multiplex).
If the fault is still present, carry out fault finding on injection system (see 17B, Petrol injection or 13B, Diesel
injection).
If the problem 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.
DP0TA2005_V14_DF237/DP0TA2005_V18_DF237
Page 73 of 139

Fault finding - Conformity check23A
23A - 73V5 MR-372-J84-23A100$464.mif
SIEMENS TA2005
Vdiag No.: 14-18AUTOMATIC TRANSMISSION
Fault finding - Conformity check
MAIN SCREEN
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
1Engine speedPR006:Engine speed0 rpmIn the event of a
fault, consult the
interpretation of this
parameter.
2Turbine speedPR007:Turbine speed0 rpmIn the event of a
fault, consult the
interpretation of this
parameter.
3Power supplyPR008:Computer feed
voltage10 V < X < 13 VIn the event of a
fault, consult the
interpretation of this
parameter.
4Gearbox oil
temperaturePR004:Gearbox oil
temperature- 40 ˚C < X < 140 ˚CIn the event of a
fault, consult the
interpretation of this
parameter.
5Coolant
temperaturePR001:Coolant
temperature- 40 ˚C < X < 120 ˚CIn the event of a
fault, consult the
interpretation of this
parameter.
6Oil pressurePR003:Oil pressureX < 0.2 barIn the event of a
fault, consult the
interpretation of this
parameter.
DP0TA2005_V14_CCONF/DP0TA2005_V18_CCONF
MR-372-J84-23A100$464.mif
Page 108 of 139
Fault finding - Parameter summary table23A
23A - 108V5 MR-372-J84-23A100$638.mif
SIEMENS TA2005
Vdiag No.: 14-18AUTOMATIC TRANSMISSION
Fault finding - Parameter summary table
Tool parameter Diagnostic tool title
PR001Coolant temperature
PR003Oil pressure
PR004Gearbox oil temperature
PR006Engine speed
PR007Turbine speed
PR008Computer feed voltage
PR105Vehicle speed
PR118Gearbox oil pressure sensor voltage
PR123Calculated engine torque
PR124Accel. pedal position for downshifting
PR126Current turbine speed
PR128Engine/turbine speed difference
PR135Standard pedal position
PR136Raw pedal position
PR138Reference pressure
PR146Difference between reference and oil pressure
MR-372-J84-23A100$638.mif
Page 109 of 139
Fault finding - Interpretation of parameters23A
23A - 109V5 MR-372-J84-23A100$696.mif
SIEMENS TA2005
Vdiag No.: 14-18AUTOMATIC TRANSMISSION
Fault finding - Interpretation of parameters
PR001
COOLANT TEMPERATURE
NOTESSpecial notes:
Only apply the checks if the parameter is inconsistent.
Run a multiplex network test (see 88B, Multiplex).
If parameter PR001 Coolant temperature is absent, refer to the interpretation of the parameter (see MR 366
Megane, 17B, Petrol injection or 13B, Diesel injection).
AFTER REPAIRRepeat the conformity check from the start.
DP0TA2005_V14_PR001/DP0TA2005_V18_PR001
MR-372-J84-23A100$696.mif