88B - 20
MULTIPLEXING
Fault finding - Fault Finding Chart
88B
V4 MR-372-J84-88B050$900_eng.mif
MULTIPLEXING
Fault finding - Fault Finding Chart
ALP 1 No dialogue with computers
NOTESVehicle computer power supply for fault finding:
insert the vehicle card in the card reader.
Press and hold (over 5 seconds) the Start button in the absence of start conditions (for
example: selecting a gear).
Connect the diagnostic tool and perform the required operations.
IMPORTANT
To supply the discharge bulb computers, switch on the dipped headlights.
Use Technical Note Wiring diagram, Scénic II ph2.
Try the diagnostic tool on another vehicle.
Make sure the tool has a more recent update than CD 64.
Check:
–The connection between the diagnostic tool and socket (connection and cable in good condition).
–The computers' power supply.
–The engine compartment and passenger compartment fuses.
MR-372-J84-88B050$900_eng.mif
