Page 20 of 91

86A-20V2 MR-413-X44-86A100$030.mif
86A
R01-08
Vdiag No.: A4
Role of main components
The radio computer manages the various multimedia system functions according to user requests and transmits
audio data to the vehicle via the speakers.
The radio uses an amplified aerial system to improve radio reception.
The aerial amplifier is incorporated into the roof aerial.
The speakers reproduce the radio system's sound inside the vehicle.
The microphone allows the telephone to be used in hands-free mode via a Bluetooth connection.
The tweeters reproduce the high-frequency sounds of the radio system.
The multimedia interface unit (Display or Multimedia connection unit) receives various signals from the vehicle CAN
(speed, status of exterior lights) and retransmits them for the radio via the Multimedia CAN.
The multimedia interface unit (Display or Multimedia connection unit) transmits the activation signal to the radio and
to the other computers that participate in the multimedia function when the user activates the radio button.
The display shows various multimedia information such as the radio information, the time, etc.
The radio control satellite allows various functions of the radio to be accessed.
RADIO
Fault finding – Role of components
Page 22 of 91

86A-22V2 MR-413-X44-86A100$050.mif
86A
R01-08
Vdiag No.: A4
The radio includes the following functions:
•Radio reception (AM, FM).
•CD/MP3 playing.
The system offers the following possibilities:
•Choose FM radio stations using the presets, the list or manual selection.
•Have access to an automatically updated FM radio list.
•Listen to CDs and MP3s.
•Control the radio using the radio control satellite.
•Have access to optimised audio and acoustic telephone configurations for each vehicle.
•Modify various acoustic parameters (base, treble, front/rear balance, etc.).
•Benefit from a connection for a CD changer.
•Possibility of connecting a peripheral with a USB port, Jack socket, etc.
•Anti-theft protection.
Computer activation system
The radio has an activation system.
The radio is switched on under the following conditions:
•by pressing the radio ON/OFF button,
•when the engine is started, the radio is switched on automatically.
The radio is switched off under the following conditions:
•The ignition is switched off.
•Door opened (Clio III)
•1 minute after a door is opened (New Twingo)
•By pressing the radio ON/OFF button (Clio III and New Twingo).
•In the last case, if the vehicle engine is running, the radio will be switched off from a user point of view, but will be
considered operational from an electrical point of view. If the ignition is switched off, the radio will be off.
The computer activation system is managed by the UCH, which activates the display with a timed + battery supply.
The activated display in turn activates all of the computers involved in the multimedia function
RADIO
Fault finding – Function
Page 28 of 91
86A-28V2 MR-413-X44-86A100$110.mif
86A
R01-08
Vdiag No.: A4
Tool faultAssociated
DTCDiagnostic tool title
DF001930DFront right-hand speaker
DF002930FFront left-hand speaker
DF003930BRear right-hand speaker
DF004 9311Rear left-hand speaker
DF0069315FM1 amplifier
DF022936ACD changer
DF0239368CD changer
DF024936BCD changer
DF028935CComputer
DF0299344Computer
DF0309341Computer configuration
DF032934AComputer
DF033934BComputer
DF03993F0Battery voltage
DF04093D4No audio CD changer signals
DF04393D5No audio CD changer signals
DF0469341Locked unit
DF05593CFButton jammed
DF0579358Disc error
DF058936CCD changer overheating
DF0649327Activation signal
DF0809341Excessive temperature
DF08193CECD changer button jammed
RADIO
Fault finding – Fault summary table
Page 41 of 91

86A-41
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
DF040
DF043
PRESENT
OR
STOREDNO AUDIO CD CHANGER SIGNALS
1.DEF: No communication with the CD changer
NOTESUse the Wiring Diagrams Technical Note for Clio III or New Twingo.
Check for a CD changer in the vehicle.
Check the consistency between the configuration of the radio and the vehicle equipment by reading configuration
LC005 External components and correct if necessary, using SC002 Computer configuration.
Look for any signs of damage to the wiring harness, check the condition and connection of the connectors and
connections of components 261 and the CD changer.
If the connectors or connections are faulty and if there is a repair procedure (see Technical Note 6015A,
Electrical wiring repair, Wiring: Precautions for repair), repair the connector or the wiring, otherwise replace
the wiring.
If the vehicle is equipped with a CD changer, it was fitted as an accessory. Please refer to the handbook delivered
with the product.
If the checks are correct, replace the CD changer.
If the fault persists, contact your Techline.
R108_VA4_DF040/R108_VA4_DF043
Page 53 of 91

86A-53V2 MR-413-X44-86A100$130.mif
RADIO
Fault finding – Conformity check86A
R01-08
Vdiag No.: A4
FUNCTION: MULTIMEDIA
SUB-FUNCTION: AUDIO
NOTESOnly carry out this conformity check after a complete check with the diagnostic tool.
The values shown in this conformity check are given as a guide.
Application conditions: Engine stopped, ignition on, and the radio switched on.
FunctionParameter or status checked
or actionDisplay and notes Fault finding
Audio testAC004:Test right front
speaker line
This command is used to
successively activate
each speaker.In the event of an
inconsistency, consult the
interpretation of fault DF001
Front right-hand speaker.
AC005:Test left front
speaker lineIn the event of an
inconsistency, consult the
interpretation of fault DF002
Front left-hand speaker.
AC006:Test right rear
speaker lineIn the event of an
inconsistency, consult the
interpretation of fault DF003
Rear right-hand speaker.
AC007:Test left rear
speaker lineIn the event of an
inconsistency, consult the
interpretation of fault DF004
Rear left-hand speaker.