Page 49 of 86

MULTIMEDIA
Fault finding - Interpretation of parameters86C
86C-48
NAV 4R
Program no.: 0000
Vdiag No.: 24
PR001
CONTINUED
Using the universal bornier, check the insulation, continuity and the absence of interference resistance on
the following connections:
Mégane:
●connection code BCP3,
between components 261, 260 and 1303.
●connection code MAO,
between component 261 and earth MAO.
Laguna:
●connection code BCP4,
between components 261 and 710.
●connection code MT,
between component 261 and MT earth.
Scénic:
●connection code BCP3,
between components 261 and 260.
●connection code MAO,
between component 261 and earth MAO.
Trafic:
●connection code BCP4,
between components 1016 and 662.
●connection code MT,
between component 662 and earth MT.
Master:
●connection code BCP4,
between components 1016 and 261.
●connection code NL,
between component 261 and earth NL.
If the connection is faulty and there is a repair procedure (see Technical Note 6015A, Electrical wiring repair,
Wiring: Precautions for repair), repair the wiring, otherwise replace it.
AFTER REPAIRRepeat the conformity check from the start.
Page 50 of 86
MULTIMEDIA
Fault finding - Interpretation of parameters86C
86C-49
NAV 4R
Program no.: 0000
Vdiag No.: 24
PR002
VEHICLE SPEED
NOTESThere must be no present or stored faults.
Use the Wiring Diagram Technical Note for the vehicle concerned.
Run fault finding on the ABS system (see 38C, Anti-lock braking system).
If there is no ABS system fault indicated, check connection 47F between components 1094 and 261 (Trafic: 662).
If the connection is faulty and there is a repair procedure (see Technical Note 6015A, Electrical wiring repair,
Wiring: Precautions for repair), repair the wiring, otherwise replace it.
If the fault is still present, contact the Techline.
AFTER REPAIRRepeat the conformity check from the start.
NAV4R_V24_PR002
Page 51 of 86

MULTIMEDIA
Fault finding - Interpretation of parameters86C
86C-50
NAV 4R
Program no.: 0000
Vdiag No.: 24
PR006
EXTERNAL TEMPERATURE
NOTESOnly apply the checks if the parameter is inconsistent.
There must be no present or stored faults.
Special notes:
On the Laguna, Trafic, Master and Master propulsion, the exterior temperature
information is supplied by the exterior temperature sensor.
On Mégane and Scénic, this information comes from the UCH.
Use the Wiring Diagram Technical Note for the vehicle concerned.
Only for Laguna, Trafic, Master and Master propulsion
Check the condition and connection of the connector of component 240 (component 239 for right-hand drive
vehicles) and the black 24-track connector of component 261 (Trafic: 662).
If the connector is faulty and there is a repair procedure (see Technical Note 6015A, Electrical wiring repair,
Wiring: Precautions for repair), repair the connector, otherwise replace the wiring.
Using the universal bornier, check the insulation, continuity and the absence of interference resistance on
the following connections:
Left-hand drive:
●47C connection code,
●47D connection code,
between components 261 (Trafic: 662) and 240.
Right-hand drive:
●47C connection code,
●connection code 47D,
between components 261 (Trafic: 662) and 239.
If the connection is faulty and there is a repair procedure (see Technical Note 6015A, Electrical wiring repair,
Wiring: Precautions for repair), repair the wiring, otherwise replace it.
AFTER REPAIRRepeat the conformity check from the start.
NAV4R_V24_PR006
Page 52 of 86

MULTIMEDIA
Fault finding - Interpretation of parameters86C
86C-51
NAV 4R
Program no.: 0000
Vdiag No.: 24
PR006
CONTINUED
If the temperature measured by the sensor does not correspond to the exterior temperature, measure the sensor
resistance between connections 47C and 47D.
The resistance should be approximately 3000 ΩΩ Ω Ω
±± ± ±
300 ΩΩ Ω Ω
at 20 °° ° °
C.
Replace the sensor if faulty.
Laguna II ph2
(see MR 395 mechanical, 84A Control - Signals, temperature sensor: Removal - Refitting)
Trafic II ph1 and ph2
(see MR 408 mechanical, 84A Control - Signals, temperature sensor: Removal - Refitting)
Master ph2 and ph3
(see MR 377 mechanical, 84A Control - Signals, temperature sensor: Removal - Refitting)
Master propulsion ph2
(see Technical Note 3818A, 84A, Control - Signals, Exterior temperature sensor: Removal - Refitting)
If the fault is still present, contact the Techline.
Only for Mégane II ph 2 and Scénic II ph2
Check the condition and connection of the connector of component 645 and the black 24-track connector of
component 261.
If the connector is faulty and there is a repair procedure (see Technical Note 6015A, Electrical wiring repair,
Wiring: Precautions for repair), repair the connector, otherwise replace the wiring.
Using the universal bornier, check the insulation, continuity and the absence of interference resistance on
connection 47Z (Mégane) or 47C (Scénic) between components 261 and 645.
If the connection is faulty and there is a repair procedure (see Technical Note 6015A, Electrical wiring repair,
Wiring: Precautions for repair), repair the wiring, otherwise replace it.
If the fault is still present, apply the fault finding procedure for the UCH system (see 87B, Passenger compartment
connection unit).
AFTER REPAIRRepeat the conformity check from the start.
Page 53 of 86

MULTIMEDIA
Fault finding - Interpretation of parameters86C
86C-52
NAV 4R
Program no.: 0000
Vdiag No.: 24
PR008
NUMBER OF SATELLITES RECEIVED
NOTESThere must be no present or stored faults.
Use the Wiring Diagram Technical Note for the vehicle concerned.
Check the condition and connection of the GPS coaxial connector of the following components (bent pins, bad
contacts, etc.):
Commercial vehicle: 662 and 886.
Mégane cabriolet: 261, 1551 and 886.
Mégane and Scénic: 886 and 261.
Laguna: 261 and 1551.
If the connector is faulty and there is a repair procedure (see Technical Note 6015A, Electrical wiring repair,
Wiring: Precautions for repair), repair the connector, otherwise replace the wiring.
Disconnect the GPS coaxial cable at the rear of component 261 (Trafic: 662) and measure the resistance between
the core and the shielding.
If the resistance is less than 30 ΩΩ Ω Ω
, disconnect the GPS coaxial cable from the cut-off plate at the rear and check
the insulation, continuity and absence of interference resistance on the GPS coaxial cable at the rear of
component 261 (Trafic: 662).
If the connections are not correct, replace the coaxial cable.
If the connections are correct, replace the GPS aerial.
Mégane II ph2
(see MR 364 mechanical, 83C On-board telematics system, Aerial: Removal - Refitting)
Laguna II ph2
(see MR 395 mechanical, 83C On-board telematics system, Aerial: Removal - Refitting)
Scénic II ph2
(see MR 370 mechanical, 83C On-board telematics system, Aerial: Removal - Refitting)
Trafic II ph1 and ph2
(see MR 408 mechanical, 83C On-board telematics system, Aerial: Removal - Refitting)
Master ph2 and ph3
(see MR 377 mechanical, 83C On-board telematics system, Aerial: Removal - Refitting)
Master propulsion ph2
(see Technical Note 3818A, 83C On-board telematics system, Navigation aerial: Removal - Refitting).
If the resistance is greater than 30 ΩΩ Ω Ω
, check the feed voltage of component 1551 (4.5 V ±± ± ±
0.5 V) at the output of
component 1551 or 886.
If the voltage is not correct, contact the Techline.
AFTER REPAIRRepeat the conformity check from the start.
NAV4R_V24_PR008
Page 54 of 86

MULTIMEDIA
Fault finding - Interpretation of parameters86C
86C-53
NAV 4R
Program no.: 0000
Vdiag No.: 24
PR008
CONTINUED
Using the universal bornier, check the insulation, continuity and the absence of interference resistance on the
following connections:
Laguna:
●connection code TB15,
●connection code 46CB,
between components 261 and 1551.
If the 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 it.
Using the universal bornier, check the insulation, continuity and the absence of interference resistance on
the following connections:
Mégane, Scénic:
●connection code 46CB,
●connection code TB15,
between components 261 and 886.
Mégane cabriolet:
●connection code 46CB,
●connection code TB15,
between components 1551 and 886.
Trafic:
●connection code 46CB,
●connection code TB15,
between components 662 and 886.
Master:
●connection code 46CB,
●connection code TB15,
between components 261 and 886.
If the 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 it.
If the fault is still present, contact the Techline.
AFTER REPAIRRepeat the conformity check from the start.
Page 55 of 86
MULTIMEDIA
Fault finding - Interpretation of parameters86C
86C-54
NAV 4R
Program no.: 0000
Vdiag No.: 24
PR009
ANGULAR POSITION
NOTESThere must be no present or stored faults.
Engine stopped, ignition on.
Use the Wiring Diagram Technical Note for the vehicle concerned.
Remove component 261 (Trafic: 662) without disconnecting the connectors.
Shake the radio/navigation computer vigorously; parameter PR009 Angular position should be above or equal
to 1 d/s.
Each time the 4R radio/navigation computer is at rest, PR009 Angular position should be very close to 0 d/s.
If the parameter does not change, contact the Techline.
AFTER REPAIRRepeat the conformity check from the start.
NAV4R_V24_PR009
Page 56 of 86

MULTIMEDIA
Fault finding - Interpretation of parameters86C
86C-55
NAV 4R
Program no.: 0000
Vdiag No.: 24
*RDS: Radio Data SystemPR010
RADIO FIELD INTENSITY
NOTESThere must be no present or stored faults.
Engine stopped, ignition on.
Tune to a known FM or AM station with the vehicle in an open area if possible.
The "Radio field intensity" corresponds to the electrical intensity of the radio signal (FM or AM) received at the
radionavigation tuner input, at the frequency currently selected. It is expressed in dB µV.
It gives an indication of the radio reception level. Below 18 dB µV, the station is considered weak and does not
appear in the list of radio stations.
A low value (< 18 dB µV) on this parameter means that:
–Either the selected station has a weak transmission in the geographical area. This may be due to the
distance from the selected station's transmitter (far from urban area, on motorways) or obstacles interfering
with the transmission of radio waves (mountainous areas, buildings, deep valleys).
–Or, if the reception conditions are good in the geographical area for the selected station, there is a fault on
the vehicle's reception system: one of the components (aerial/aerial amplifier/coaxial connection/radio aerial
connector) is faulty. In this case, refer to ALP 4.
This parameter may be used to compare two vehicles in order to determine if there actually is a vehicle fault.
Summary table of field values and their effect on radio reception:
Radio field intensityAudio
qualityRDS* decoding
(eg.: station names display)Automatic tuning/
Presence in the radio list
PR010 > 18 dBµVOK OK OK
14 dBµV < PR010 < 18 dBµVOK OKNOK
10 dBµV < PR010 < 14 dBµVOKNOK NOK
PR010 < 10 dBµVNOK NOK NOK
AFTER REPAIRRepeat the conformity check from the start.
NAV4R_V24_PR010