2008 RENAULT SCENIC ESP

AUTOMATIC TRANSMISSION
Fault finding – Introduction23A
23A - 3V4 MR-372-J84-23A050$066.mif
SIEMENS TA2000
Vdiag No.: 10-11-15
To cut off + after ignition, proceed as follows:
–Disconnect the diagnostic tool.
–Press the Start button twice briefly (less than 3 seconds).
–Ensure that the + after ignition feed has been cut off by checking that the computer indicator lights on the
instrument panel have gone out.
Faults
Faults are declared either present or stored (depending on whether they appeared in a certain context and
disappeared since, or whether they remain present but have not been diagnosed within the current context).
The present or stored status of faults should be taken into consideration when the diagnostic tool is switched on
after the + after ignition feed (without any system components being active).
For a present fault, apply the procedure described in the Interpretation of faults section.
For a stored fault, note the faults displayed and apply the instructions in the Notes section.
If the fault is confirmed when the instructions in the Notes section are applied, the fault is present. Deal with the fault
If the fault is not confirmed, check:
–the electrical lines which correspond to the fault,
–the connectors for these lines (for oxidation, bent pins, etc.),
–the resistance of the component detected as faulty,
–the condition of the wires (melted or split insulation, wear).
Conformity check
The aim of the conformity check is to check data that does not produce a fault on the diagnostic tool because the
data is inconsistent. Therefore, this stage is used to:
–carry out fault finding on faults that do not have a fault display, and which may correspond to a customer
complaint.
–check that the system is operating correctly and that there is no risk of a fault recurring after repairs.
This section gives the fault finding procedures for statuses and parameters and the conditions for checking them.
If a status is not behaving normally or a parameter is outside the permitted tolerance values, consult the
corresponding fault finding page.
Customer complaints - Fault finding chart
If the test with the diagnostic tool is OK but the customer complaint is still present, the fault should be processed by
customer complaint. Note:
The left and right-hand xenon bulb computers are supplied when the dipped headlights are lit.
Therefore fault finding can only be carried out on them after the ignition has been switched on in fault finding mode
(forced + after ignition feed) and the dipped headlights have been switched on.
A synopsis of the general procedure to follow is provided on the following page in the form of a flow chart.

AUTOMATIC TRANSMISSION
Fault finding – Introduction23A
23A - 5V4 MR-372-J84-23A050$066.mif
SIEMENS TA2000
Vdiag No.: 10-11-15
4. FAULT FINDING PROCEDURE (continued)
Wiring check
Fault finding problems
Disconnecting the connectors and/or manipulating the wiring harness may temporarily remove the cause of a fault.
Electrical measurements of the voltage, resistance and insulation are generally correct, especially if the fault is not
present when analysing (stored fault).
Visual inspection
Look for damage under the bonnet and in the passenger compartment.
Carefully check the fuses, insulators and wiring harness routing.
Look for signs of oxidation.
Tactile inspection
While manipulating the wiring harness, use the diagnostic tool to note any change in fault status from stored or
present.
Check that the connectors are correctly locked.
Apply light pressure to the connectors.
Twist the wiring harness.
If there is a change in status, try to locate the source of the fault.
Inspection of each component
Disconnect the connectors and check the appearance of the clips and tabs, as well as the crimping (no crimping on
the insulating section).
Check that the clips and tabs are correctly locked in the sockets.
Make sure that no clips or tabs have been dislodged during connection.
Check the clip contact pressure using an appropriate model of tab.
Check the continuity/insulation
Check the continuity of entire lines, then section by section.
Look for a short circuit to earth, to + 12 V or to another wire.
If a fault is detected, repair or replace the wiring harness.

AUTOMATIC TRANSMISSION
Fault finding – Replacement of components23A
23A - 13V4 MR-372-J84-23A050$198.mif
SIEMENS TA2000
Vdiag No.: 10-11-15
For SCENIC II only
Reading automatic transmission configuration
The read-configuration commands (LCXXX) are used to display the current computer configuration in relation to the
equipment installed in the vehicle.
Writing automatic transmission configuration
The write-configuration commands (CFXXX) are used to configure the computer for the equipment installed in the
vehicle.
These three settings are important because they optimise transmission operation for the vehicle. If they are not
entered properly, automatic transmission operation may be impaired.Configuration reading Configuration
LC014 Engine torque control function WITH/WITHOUT
LC015 Electronic stability control WITH/WITHOUT
LC017 Shift lock connection fault finding WITH/WITHOUT
Configuration reading Configuration
CF322 Engine torque control function WITH/WITHOUT
CF314 Electronic stability program (ESP) WITH/WITHOUT
CF325 Shift lock connection fault finding WITH/WITHOUT

AUTOMATIC TRANSMISSION
Fault finding – Replacement of components23A
23A - 14V4 MR-372-J84-23A050$198.mif
SIEMENS TA2000
Vdiag No.: 10-11-15
For SCENIC II only
CONFIGURATIONS OF THE AUTOMATIC TRANSMISSION COMPUTER CF322: ENGINE TORQUE CONTROL
FUNCTION
–This function reduces engine torque when shifting gears.
–To apply this configuration, the vehicle must have the ignition on, engine stopped and gear lever in position P
or N.
–This function tells the computer what torque to apply to the engine when changing gears.
–Select configuration CF322 "Engine torque control function".
–Configure the computer WITH or WITHOUT.
–Exit fault finding mode.
–Switch off the ignition.
–Wait 15 seconds for the power-latch to end.
–re-read the configuration for confirmation.
CF314 "ELECTRONIC STABILITY PROGRAM (ESP)"
–This function limits over- or under-steering by braking certain wheels and controlling engine torque.
–To apply this configuration, the vehicle must have the ignition on, engine stopped and gear lever in position P
or N.
–This function lets the automatic transmission computer downshift for ESP adjustments.
–Select configuration CF314 "Electronic stability program (ESP)".
–Configure the computer WITH or WITHOUT.
–Exit fault finding mode.
–Switch off the ignition.
–Wait 15 seconds for the power-latch to end.
–re-read the configuration for confirmation.
CF325 "SHIFT LOCK CONNECTION FAULT FINDING"
–To apply this configuration, the vehicle must have the ignition on, engine stopped and gear lever in position P
or N.
–Select configuration CF325 "Shift lock connection fault finding".
–Configure the computer WITH or WITHOUT.
–Exit fault finding mode.
–Switch off the ignition.
–Wait 15 seconds for the power-latch to end.
–re-read the configuration for confirmation.

AUTOMATIC TRANSMISSION
Fault finding – Fault Finding Chart23A
23A-118V4 MR-372-J84-23A050$924.mif
SIEMENS TA2000
Vdiag No.: 10-11-15
ALP3
CONTINUED 1
Check the oil level.
Check the oil pressure value using PR003 Oil pressure:
Warm engine with gearbox oil temperature between 65 and 90˚C.
Measure the line pressure under the 3 following 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.
Do the recorded values correspond to the specified values?
Shift the gear lever into position D and monitor
PR007 Turbine speed when accelerating.Replace the pressure modulating solenoid valve and
the oil. Repeat the check after replacement.
If the fault is still present, replace the hydraulic
distributor and all the solenoid valves (see MR 364
Mechanical, 23A, Automatic transmission,
Hydraulic distributor (for Mégane II) and MR 370
Mechanical, 23A, Automatic transmission,
Hydraulic distributor (for Scénic II)).
Does the turbine speed change?

Replace the automatic transmission (see MR 364, Mechanical, 23A,
Automatic transmission, Removal-Refitting (for Mégane II) and
MR 370, Mechanical, 23A, Automatic transmission, Removal-Refitting
(for Scénic II)).
A
YESNO
NOYES
B
AFTER REPAIRCarry out a road test followed by a complete check with the diagnostic tool.