ESP RENAULT TWINGO 2009 2.G Electrical Equipment - Radio R01-08 Workshop Manual

86A-3V2 MR-413-X44-86A100$010.mif
RADIO
Fault finding – Introduction86A
R01-08
Vdiag No.: A4
To cut off the + after ignition feed, proceed as follows:
Faults
Faults are declared either present or stored (depending on whether they appeared in a certain context and have
disappeared since, or whether they remain present but have not been diagnosed within the current context).
The present or stored status of the faults should be taken into consideration when the diagnostic tool is used after
the + after ignition feed has been activated (without any of the system components being activated).
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 Notes section.
If the fault is confirmed when the instructions 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 on these lines (corrosion, bent pins, etc.),
–the resistance of the faulty component,
–the condition of the wires (melted or cut insulation, wear). For vehicles with radio frequency remote control/key, use the key to switch off the ignition.
For vehicles with Renault cards,
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 warning lights on the
instrument panel have gone out.

86A-4V2 MR-413-X44-86A100$010.mif
RADIO
Fault finding – Introduction86A
R01-08
Vdiag No.: A4
Conformity check
The purpose of the conformity check is to check data that does not produce a fault on the diagnostic tool when 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 repair.
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 permitted tolerance values, you should 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 dealt with by
customer complaints.
A synopsis of the general procedure to follow is provided on the following page in the form of a flow chart.

86A-6V2 MR-413-X44-86A100$010.mif
RADIO
Fault finding – Introduction86A
R01-08
Vdiag No.: A4
4. FAULT FINDING PROCEDURE (continued)
4.1 Wiring check
Fault finding problems
Disconnecting the connectors and/or manipulating the wiring may temporarily clear the cause of a fault.
Electrical measurements of voltage, resistance and insulation are generally correct, especially if the fault is not
present when the analysis is made (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.
Physical inspection
When handling the wiring, use the diagnostic tool to detect any change in the status of the faults from "stored" to
"present".
Make sure that the connectors are firmly secured.
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.
Checking earth insulation
This check is carried out by measuring the voltage (multimeter in voltmeter mode) between the suspect connection
and the 12 V or 5 V. The correct measured value is 0 V.
Checking insulation against + 12 V or + 5 V
This check is carried out by measuring the voltage (multimeter in voltmeter mode) between the suspect connection
and the earth. In the first instance, the earth may be taken on the chassis. The correct measured value should be 0 V
Continuity check
A continuity check is carried out by measuring the resistance (multimeter in ohmmeter mode), with the connectors
disconnected at both ends. The expected result must be between: 0 Ω < X < 2 Ω for every connection. The line must
be fully checked, and the intermediate connections are only included in the method if this saves time during the fault
finding procedure. The continuity check on the multiplex lines must be carried out on both wires. The measured
value must be between: 0 Ω < X < 2 Ω.
Checking the supply
This check may be carried out using a test light (21 W or 5 W depending on the maximum authorised load)

86A-25V2 MR-413-X44-86A100$080.mif
86A
R01-08
Vdiag No.: A4
Available configuration and operating mode
SC002 Computer configuration.
This configuration is used to configure the computer according to the vehicle equipment level.
Reread the configuration in the "configuration reading" menu to confirm that the modification was correctly stored
using the configuration readings.
Configuration modification procedure:
•Activate the + after ignition feed.
•Connect the diagnostic tool and switch on the radio.
•Establish dialogue with the computer.
•Select the Repair mode menu.
•Select the Configuration and programming menu.
•Select the special command SC002 Computer configuration.
•Select the connection in the drop-down menu that corresponds to the vehicle.
•Click on Confirm.
•Exit diagnostic mode (ends dialogue with the computer without switching off the tool), switch off the ignition for
30 seconds and then switch the ignition back on.
•Establish dialogue with the computer.
•Check to see that the configurations have been correctly stored in the Configuration reading menu.
RADIO
Fault finding – Configurations

86A-43
AFTER REPAIRCarry out another fault finding check on the system.
Clear the stored faults using command RZ003 Fault memory.
Deal with any other faults.
V2 MR-413-X44-86A100$120.mif
RADIO
Fault finding – Interpretation of faults86A
R01-08
Vdiag No.: A4
DF055
PRESENT
OR
STOREDBUTTON JAMMED
1.DEF: Radio front panel button jammed.
NOTESConditions for applying fault finding procedures to stored faults:
The fault is declared present after:
–The + after ignition feed is activated,
–The multimedia system is switched on using the on/off button.
The button concerned is pressed for at least 2 minutes,
Check the conformity of the radio buttons by consulting the following statuses:
–ET005 Source button,
–ET007 Info traffic button,
–ET008 Radio on/off button,
–ET009 CD eject button,
–ET010 Radio preset button 1,
–ET011 Radio preset button 2,
–ET012 Radio preset button 3,
–ET013 Radio preset button 4,
–ET014 Radio preset button 5,
–ET015 Radio preset button 6,
–ET063 MEM button,
–ET068 Volume - button,
–ET069 Volume + button,
–ET070 OK button,
–ET071 Up button,
–ET072 Down button,
–ET073 Left-hand button,
–ET074 Right-hand button,
If the one of the statuses is Pressed, press on the corresponding button so that the status becomes Released.
If the fault is still present, replace the radio (see MR 392 (Clio III) or MR 411 (New Twingo) Mechanical, 86A,
Radio, Radio: Removal - Refitting).
R108_VA4_DF055