2009 RENAULT TWINGO RS Electrical Equipment - Radio Workshop Manual

86A-17
MR-413-X44-86A000$819_eng.mif
V1
RADIO
Fault finding chart86A
ALP 2The radio does not work (no sound) when the
“ON” button is pressed
Press the radio's “ON” button.
YES
Is the display working? (backlighting)
NO
Check the radio's fuse F48 (15A) (see Wiring
Diagrams Technical Note for New Twingo,
code 1016).
Is the fuse sound?
YES
Check the continuity of connections BCP4 and
MAO (see Wiring Diagrams Technical Note
for New Twingo, code 261).
Is the wiring harness sound?
YES
Replace the radio.
YES
NOCheck the insulation to earth of connection
BCP4 between components 1016 and 261. If
the insulation is correct, replace the fuse, or if
it is faulty and if there is a repair procedure
(see Technical Note 6015A, Repairing
electrical wiring, Wiring: Precautions for
repair), repair the wiring, otherwise replace it.
NOIf there is a repair procedure (see Technical
Note 6015A, Repairing electrical wiring,
Wiring: Precautions for repair), repair the
wiring, otherwise replace it.
A

86A-18
MR-413-X44-86A000$819_eng.mif
V1
RADIO
Fault finding chart86A
*FADER: control used to distribute the sound between the front and rear of the vehicle.
ALP 2
CONTINUED 1
Is the volume set to “0” or muted?
NO
Is the "Fader"* set fully to the
rear speaker position?
NO
Speaker connector disconnected. Check that the
speaker tracks (34A to 34H) have no short circuit
or are not earthed using a multimeter (see
Wiring Diagrams Technical Note for New
Twingo, codes 189 to 190, 365 to 366 and
1597 to 1598).YESCheck insulation to earth of connection 107D
(for vehicles fitted with a hands-free kit).
If the insulation is not correct and if there is a
repair procedure (see Technical
Note 6015A, Repairing electrical wiring,
Wiring: Precautions for repair), repair the
wiring, otherwise replace it.
YESSet the fader to “0”.
B
A

86A-19
MR-413-X44-86A000$819_eng.mif
V1
RADIO
Fault finding chart86A
ALP 2
CONTINUED 2
Is there a short circuit on one of the lines?
YES
Check the defective speaker using a multimeter.
Is the speaker short-circuited?
YES
Replace the faulty speaker.NOReplace the radio.
Replace the radio.
B
NOUsing a multimeter, check the continuity and
insulation of the wiring.
Is the wiring harness sound?
YESNO
If there is a repair procedure (see Technical
Note 6015A, Repairing electrical wiring,
Wiring: Precautions for repair), repair the
wiring, otherwise replace it.

86A-20
MR-413-X44-86A000$819_eng.mif
V1
RADIO
Fault finding chart86A
ALP 3The radio does not switch on automatically or switches off
after 20 minutes
Check that the system is operating correctly.
–Switch to + after ignition position.
–Switch on the radio.
–Switch off the + after ignition feed; the radio
should switch off.
–Switch on + after ignition feed again; the
radio should switch on.
Has the fault disappeared?
NO
Check the + accessories feed with a
multimeter.
Is there + 12 V on connection SP2 of the radio
(component 261)?
YES
Replace the radio.
YESEnd.
NOCheck supply fuse F29 (15A) (see Wiring
Diagrams Technical Note for New Twingo,
code 1016).
A

86A-21
MR-413-X44-86A000$819_eng.mif
V1
RADIO
Fault finding chart86A
ALP 3
CONTINUED
Check the insulation to earth of connection SP2
between components 261 and 1016.
Is the insulation correct?
YES NO
Replace the fuse.
Does the radio operate after the fuse has been
replaced?
YES
The fault has been rectified.
NOIs the fuse sound?
YES
Check the continuity of connection SP2
between components 1016 and 261.
Is the continuity good?
YES
Replace the radio.
If there is a repair procedure (see Technical
Note 6015A, Repairing electrical wiring,
Wiring: Precautions for repair), repair the
wiring, otherwise replace it.
NOA

86A-22
MR-413-X44-86A000$819_eng.mif
V1
RADIO
Fault finding chart86A
ALP 4The radio is switched on, but the display and control satellite do
not operate
NOTESFor radio versions with remote display.
The radio operates but the display does not
light up.
Check the functions of the display that are not
connected to the radio by switching on the “+
side lights feed” (screen backlighting and
exterior temperature).
Does the backlighting or exterior temperature
display work?
YES
Check the continuity and insulation of the wiring
between the radio and the display using a
multimeter (see Wiring Diagrams Technical
Note for New Twingo, code 261).
NODisconnect the aerial amplifier
(component 886).
Does the screen light up?
YES NO
C
BA

86A-23
MR-413-X44-86A000$819_eng.mif
V1
RADIO
Fault finding chart86A
ALP 4
CONTINUED 1
NOTESFor radio versions with remote display.
Are the tests OK?
YES NO
Disconnect then reconnect the display. If the fault
is still present, replace the display.
Check the continuity and insulation of
connection 34AM.
Are the tests OK?
NO YES
Replace the aerial amplifier.
If there is a repair procedure (see Technical
Note 6015A, Repairing electrical wiring,
Wiring: Precautions for repair), repair the
wiring, otherwise replace it.
B
C

86A-24
MR-413-X44-86A000$819_eng.mif
V1
RADIO
Fault finding chart86A
ALP 4
CONTINUED 2
NOTESFor radio versions with remote display.
Check for 12 V between connections BCP4 and
MAM of component 653.
Is there a voltage of 12 V?
YES
Check for 12 V on connection SP2 of
component 653.
Is there a voltage of 12 V?
NO YES
Continuity fault on connection SP2 between
components 653 and 1016. If there is a repair
procedure (see Technical Note 6015A,
Repairing electrical wiring, Wiring:
Precautions for repair), repair the wiring,
otherwise replace it.
NOCheck for 12 V between connection BCP4
and the chassis earth.
Is there a voltage of 12 V?
YES NO
Continuity fault on connection BCP4 between
components 653 and 1016. If there is a repair
procedure (see Technical Note 6015A,
Repairing electrical wiring, W iring:
Precautions for repair), repair the wiring,
otherwise replace it.
Continuity fault on the earth MAM of
component 653 on the chassis. If there is a
repair procedure (see Technical Note 6015A,
Repairing electrical wiring, Wiring:
Precautions for repair), repair the wiring,
otherwise replace it.
Replace the display (see MR 411
Mechanical, 86A, Radio, Display:
Removal - Refitting).
A