MULTIMEDIA
Fault finding - Introduction
86C
86C-2V5 MR-372-J84-86C050$052.mif
186C
ITS
Program No.: 0020
Vdiag No.: 04MULTIMEDIA
Fault finding - Introduction
1. SCOPE OF THIS DOCUMENT
This document presents the fault finding procedure applicable to all computers with the following specifications:
2. PREREQUISITES FOR FAULT FINDING
Documentation type
Fault finding procedures (this document):
–Assisted fault finding (integrated into the diagnostic tool), Dialogys.
Wiring Diagrams:
–Visu-Schéma (CD-ROM), paper.
Type of diagnostic tools
–CLIP + multiplex line sensor
Special tooling required
3. REMINDERS
Procedure
To run fault finding on the vehicle's computers, switch on the ignition in fault finding mode (forced + after ignition
feed).
Proceed as follows:
–vehicle card in reader,
–press and hold start button (longer than 5 seconds) with start-up conditions not fulfilled,
–connect the diagnostic tool and perform the required operations.
To cut off the + after ignition feed, proceed as follows:
–disconnect the diagnostic tool,
–press the Start button twice briefly (less than 3 seconds),
–check that the computer warning lights on the instrument panel have gone out to confirm that the + after ignition
feed has been cut off. Vehicle: Scenic II ph2
Function concerned: Navigation, integrated
hands-free telephone, receiver, CD playerName of computer: ITS
Program No.: 0020
Vdiag No.: 04
Special tooling required
Multimeter
Elé. 1681Universal bornier
Note:
The left-hand and right-hand xenon bulb computers are powered when the dipped headlights are lit.
Fault finding can only be run after the ignition is switched on in fault finding mode (forced + after ignition feed)
and the dipped headlights are lit.
TDB_V04_PRELIITSJ84ph2V1.0
MR-372-J84-86C050$052.mif
MULTIMEDIA
Fault finding - Fault finding charts
86C
86C-45V5 MR-372-J84-86C050$936.mif
ITS
Program No.: 0020
Vdiag No.: 04MULTIMEDIA
Fault finding - Fault finding charts
ALP 1 No dialogue with the computer
NOTESSwitch on the + after ignition feed to enter fault finding mode with the computer.
Use the Wiring Diagrams Technical Note, Scenic II.
Check the condition and connection of the battery connections.
Check the condition of the fuses.
Check the battery voltage.
Try the diagnostic tool on another vehicle.
Check:
–the connection between the diagnostic tool and the diagnostic sensor (wiring in good condition),
–the connection between the diagnostic sensor and the diagnostic socket (wiring in good condition).
Check for + 12 V on the 34HU connection of the navigation computer (component code 662).
Check for + 12 V battery feed on connection BP32, for + 12 V after ignition feed on connection AP43 and for
an earth on the NAM connection and on the MAM connection of the diagnostic socket (component code 225).
If any connection is faulty and if there is a repair method (see Technical Note 6015A, Repairing electrical wiring,
Wiring: Precautions for repair), repair the wiring; otherwise, replace the wiring.
Check for + 12 V battery feed on connection BCP3 and an earth on connection MX of component 662.
If any connection is faulty and if there is a repair method (see Technical Note 6015A, Repairing electrical wiring,
Wiring: Precautions for repair), repair the wiring; otherwise, replace the wiring.
Disconnect the 32-track connector of component 662 and the connector of component 1657 to check
the insulation, continuity and absence of interference resistance of the following connections:
●connection code 34GA,
●connection code 34DZ,
between components 662 and 1657;
●connection code 107X,
●connection code 107W,
between components 1657 and 225;
●connection code BCP3,
between components 662 and 260;
●connection code MX,
between component 662 and earth MX.
If any connection is faulty and if there is a repair method (see Technical Note 6015A, Repairing electrical wiring,
Wiring: Precautions for repair), repair the wiring; otherwise, replace the wiring.
AFTER REPAIRCarry out a complete check with the diagnostic tool.
ITS_V04_ALP1ITSJ84ph2V1.0
MR-372-J84-86C050$936.mif
