INFO’ DIAG
DIAGNOSTIC TOOLS
CITROËN
LEXIA
PROXIA
CD 39
CITROËN SELLING DEALERS :
AFTER SALES DIVISION
-
PDI technicians
-
Campaign co-ordinators
TECHNICAL
SERVICES
N° 411
AUTHORISED REPAIRERS :
-
Service Managers
12/12/2007
- Consultant technicians
THE CONTENTS OF THIS BULLETIN SHOULD BE MADE KNOWN TO ALL PERSONNEL
WHO, DIRECTLY OR INDIRECTLY, USE LEXIA / PROXIA DIAGNOSTIC TOOLS.
TITLE:
Activation of software circuit-breakers on certain BSI electrical outputs of Bi VAN/CAN
vehicles still in production.
OBSERVATION / SUBJECT… :
This note is only applicable (from December 2007) to Bi VAN-CAN vehicles still
produced worldwide by Citroën:
•
Xsara Picasso Bi VAN-CAN (from software V25.00),
•
Berlingo 2 (from software BSI V24.00),
•
C2 China (from software BSI V45.00),
•
C3 Mercosur (from software BSI V45.00).
REMEDY:
Follow the procedure and explanations outlined in this document.
Page 1 / 7
OBSERVATION
The BSI software of Berlingo 2, Xsara Picasso Bi VAN-CAN, C2 China and C3
Mercosur vehicles will gradually be incorporating electronic and software circuitbreakers.
NOTE:
This function can be activated simply by updating the BSI software.
These circuit-breakers, which can be re-armed a maximum of 9 times, protect the
electronics of 10 BSI power outputs.
There are two inhibition levels when the circuit is broken.
•
Temporary inhibition:
When a short-circuit to earth is confirmed (intermittent or permanent fault), the
defective output short-circuits (output inhibited) and a fault code is memorised
permanently in the BSI. To re-arm the defective output (manual re-arming), follow
the procedure outlined in the section "REMEDY / Procedure to re-arm one or more
outputs".
This re-arming can only be carried out if the inhibition is not permanent.
•
Permanent inhibition:
Once a circuit breaker has been re-armed manually 9 times (temporary inhibition),
subsequent confirmation of short-circuit to earth on the same output (fault
memorisation), will short-circuit this output permanently and the “Internal fault on
BSI computer: output not in service” associated with faults on the output(s)
concerned will be memorised in the BSI.
To resume normal operation of the BSI, follow the procedure outlined in the section
“REMEDY / Procedure to re-arm one or more permanently inhibited outputs”.
NOTE:
The re-arming counter (number) per output can be consulted by means of the
LEXIA/PROXIA tool (see section “Tool menus” in this document).
Page 2 / 7
LIST OF FAULTS CONCERNED
Conditions of appearance and
associated downgraded modes
Manual re-arming 9 times followed
by confirmation of a short-circuit to
earth of an output
(fault memorisation)
Internal fault on BSI
computer: output not in The associated function is no
longer available.
service
Heading
Components to be checked
See associated fault code(s).
This fault is necessarily linked to
one or more of the 10 faults below.
Boot lighting fault Danger: Short-circuit to
earth
Front courtesy light fault
- Danger: Short circuit
to earth
Rear windscreen
opening control fault Danger: Short circuit to
earth
Boot opening control
fault - Danger: Short
circuit to earth
Air conditioning
compressor control fault
- Danger: Short circuit
to earth
Front and rear RH
sidelight fault - Danger:
Short circuit to earth
Front and rear LH
sidelight fault - Danger:
Short circuit to earth
Confirmation of a short-circuit to
earth and no boot lighting
Confirmation of a short-circuit to
earth and no front courtesy light.
Confirmation of a short-circuit to
earth and impossible to open rear
windscreen.
Confirmation of a short-circuit to
earth and impossible to open the
boot
Confirmation of a short-circuit to
earth and no activation of air
conditioning compressor or no more
cold.
Confirmation of a short-circuit to
earth and no activation of RH
sidelights.
Confirmation of a short-circuit to
earth and no activation of LH
sidelights.
Rear fog lamp(s) fault - Confirmation of a short-circuit to
Danger: Short circuit to earth and no activation of rear fog
earth
lamp(s).
LH direction indicator
fault - Danger: Short
circuit to earth
RH direction indicator
fault - Danger: Short
circuit to earth
Confirmation of a short-circuit to
earth and no activation of LH
direction indicators.
Confirmation of a short-circuit to
earth and no activation of RH
direction indicators.
- Control harness(es) and
connectors.
- Lamp holder(s).
- Control harness(es) and
connectors.
- Rear windscreen opening
actuator.
- Control harness(es) and
connectors.
- Boot opening actuator.
- Control harness(es) and
connectors.
- Air conditioning compressor.
- Control harness(es) and
connectors (Vehicle, towing and
trailer harness).
- Lamp holder(s) (Vehicle and
trailer).
ATTENTION: the addition of a
power consumer to this line
(adaptable trailer harness) can
cause this fault to be indicated.
- Control harness(es) and
connectors (Vehicle, towing and
trailer harness).
- Lamp holder(s) (Vehicle and
trailer).
Page 3 / 7
REMEDY
Procedure to re-arm one or more outputs:
ATTENTION:
- This procedure must only be carried out after the short circuit(s) have been repaired
(re-arming maximum 9 times before compulsory replacement of BSI).
If several faults are memorised at the same time, it is imperative to remedy them before
starting the re-arming procedure (see section “Special case” in this document).
- The displayed fault code(s) are memorised permanently even if the short circuit is
intermittent. Therefore the circuit diagnostic must not be limited to searching for an
permanent fault.
IMPORTANT: For vehicles equipped with a towing harness, if a fault related to
lighting/signalling is memorised, do not forget to test the towing and trailer harness.
1) Find the origin of the fault(s) and repair or replace the defective component(s).
2) With the vehicle at a standstill, switch off the ignition and close the driver’s door.
3) Open the driver’s door.
4) Switch the ignition on and off (without starting the engine).
5) In the next minute, simultaneously request operation of the front windscreen wiper
and flash the headlamps.
6) Keep the controls activated for around 3 seconds until a confirmation signal is
emitted by the audible warnings.
7) Check the operation of the previously defective output(s).
Page 4 / 7
Procedure to re-arm one or more permanently inhibited outputs:
ATTENTION:
It is imperative to repair the memorised output fault(s) before replacing the BSI.
To resume normal operation, the operations must be carried out in the following order:
- Repair of short-circuit (Search for an outright or intermittent fault).
- Replacement of BSI.
TOOL MENUS
Route to access the readout of BSI faults (Lexia and Proxia tools):
•
Global test
•
BSI
•
Fault readout
Route to access the readout of re-arming counters (Lexia and Proxia tools):
•
Global test
•
BSI
•
Parameter measurements
•
Power supplies
•
Status of certain power outputs
NOTE:
The “Status of certain power outputs” menu will be available from CD41 for Berlingo 2
and Xsara Picasso Bi VAN-CAN vehicles and from CD42 for other vehicles.
Page 5 / 7
SPECIAL CASE
ATTENTION:
Four outputs (see fault list below) controlled by the same electronic component have a
particular function.
If one of these four outputs registers a short-circuit to positive, no fault on the output
concerned will be memorised in the BSI, however the other three outputs will be
considered wrongly as being short-circuited to earth (memorisation of 3 faults and shortcircuiting of the 3 outputs).
In this special case, ignore the three indicated faults and instead search for and repair
the short circuit to positive on the fourth output (not listed in the list of BSI fault codes).
Fault on the outputs concerned:
1) Front courtesy light fault - Danger: Short circuit to earth
2) Air conditioning compressor control fault - Danger: Short circuit to earth
3) Boot lighting fault - Danger: Short circuit to earth
4) Boot opening control fault - Danger: Short circuit to earth
Example 1: The BSI shows faults 1, 2 and 3 => Search firstly for a Short-circuit to
positive on the boot opening control circuit.
Example 2: The BSI shows faults 1, 2 and 4 => Search firstly for a Short-circuit to
positive on the boot lighting control circuit.
Page 6 / 7
IMPORTANT:
ATTENTION, if the vehicle is equipped with a trailer harness, the latter must be of
Citroën make. Failing this, there is a risk that some BSI outputs may short-circuit
temporarily or permanently (BSI not in service) after a trailer is connected to the vehicle.
The original towing harnesses are equipped with power relays on the rear fog lamp
outputs (only Xsara Picasso) and LH and RH sidelights outputs (all vehicles concerned
by the note) to ensure that the BSI outputs concerned are not overloaded.
Page 7 / 7