88B - 21
MULTIPLEXING
Fault finding - Fault Finding Chart
88B
V4 MR-372-J84-88B050$900_eng.mif
ALP 1
CONTINUED 1
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.
Check that the CLIP sensor is supplied by the following connections: BP32 (+ 12 V), NAM and MAM (earths) on
the diagnostic socket. If the check is correct go to the next step according to the type of sensor used:
1. Renault fault finding sensor (with wire connection only):
displayed by the two red diodes on the sensor coming on.
Check that the CLIP sensor is supplied by the computer's USB port (red diode). If it is not, try with another cable,
another sensor or another clip in order to determine the defective component.
Make sure that the CLIP sensor is communicating properly with the vehicle's computers; this can be seen by the
two green diodes on the sensor lighting up. If not, check that the test conditions have been met (+ after ignition
feed, vehicle selection, etc.) otherwise apply the electrical checks below.
green LEDs red LEDs
multiplex line Vehicle supply through diagnostic socket
ISOSensor supply through USB port
88B - 22
MULTIPLEXING
Fault finding - Fault Finding Chart
88B
V4 MR-372-J84-88B050$900_eng.mif
ALP 1
CONTINUED 2
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.
2. Alliance fault finding sensor (with the possibility of a wireless connection):
Deal with the fault finding for each warning light in the following order of priority: from warning light 1 to warning light 3.
Description
of warning
lights
displayed on
the sensor
from left to
rightWarning light 1 shows
the supply statusWarning light 2 shows
the type and status of
the connectionWarning light 3 shows
the level of
communication with
the vehicleReserved
for the
Nissan tool
OffSensor not connected to
the vehicle or
connection faultNo connection to clip or
connection faultNo dialogue with the
computers-
GreenSensor supplied Wireless connectionGreen flashing:
communication in progress-
Orange-Connection with USB port - -
RedInitialisation fault - Communication error -
To be
checkedIf red or off:
–Fault with initialisation
or connections;
disconnect and
reconnect several
times and if there is
no conclusive result
try with another
sensor. If the sensor
works then replace
the sensorIf off:
–With a wireless
connection: Try with a
USB cable. If the
warning light is orange,
check the wireless
connection configuration
and if it is not correct,
call the Technical
Assistance (Techline).
–With a wired connection:
Try with another cable,
another clip or another
sensor in order to
determine the defective
component.If warning light 3 is off or
red and warning light 2 is
on:
–in this case, during the
multiplex network test
check that the green
warning light flashes and
that the test conditions
have been met (+ after
ignition feed, vehicle
selection, etc.) otherwise
apply the electrical
checks below.If the
warning
light is on:
Contact
Technical
Assistance
(Techline).
