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Diag nostic
FAILURES LOCATING BASED ON CLIENT CLAIM
(algorithm for damage locating)
A LP1. MISSING COMMUNICATION CLIP TESTER / E.C.U DECODER
RECOMMENDATION Check if the lines K a nd L are not perturbed by another computer
of the vehicle.
Check the condition of the F03, F04 fuses from cockpit fuse box.
Be sure the CLIP t ester is not the cause of t he failure, by trying the communication with
another computer of the vehicle.
Check the tension of the battery (U>12,3V). If it is necessary, charge the battery.
Check the correct c onnection of the E.C.U. decoder to the wiring.
Check the supply of the E.C.U. decoder : - mass at pin A8; - supply (+IC) at pin A9.
Be sure that the diagnostic socket is correctly supplied.
Check the continuity and the isolation of the electric wiring on the pins’ line corresponding to:
E.C.U. decoder A3 7 diagnostic socket
A4 15
If the dialogue CLIP tester – E.C.U. decoder cannot be established, then replace the decoder.
When the communication with the tester is established, solve the
AFTER REPAIRING failures displayed by CLIP.
Perform a conformity checking.
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Diag nostic
ALP2. CONTACT SET ON THE ANTI STARTING INDICATOR BLINKS
(THE ENGINE IS NOT STARTING)
RECOMMENDATION -
Set the contact on.
Connect the CLIP tester.
Is there any communication with the E.C.U.
decoder ?
S ee ALP1.
Check the fuse F03 for anti starting bushing
supply.
Is it good?Replace the fuse.
Set the c ontact on and check if the state 4D
becomes ACTIVE ?
Is th e state 19 D PASSIVE ?
Perform « Procedure for replacement
E.C.U. decoder and memorising anti
starting code » if the starter is new ;
if it’s not new, replace it.
Set the contact off. The anti starting indicator
will start to blink after 10 seconds.(ACTIVE
an ti starting ).
Set again the contact and check: the failure
« Defective communication decoder bushing ».
Does exist such a failure ?
Study « DEFECTIVE
COMMUNICATION BUSHING
– DE CODER » from the chapter
DIAGNOSTIC.
Study « STATE 4D : SUPPLY +12
V » from chapter DIAGNOSTIC.
Try the engine starting with the second key.
Is the engine starting ?Replace the first key.Yes
Ye s
Yes
Yes
Yes
Yes
No No
No
No
No
No
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Diag nostic
No
Is the anti starting bushing correctly fixed on
the steering column and is it correctly connected
?Position the bushing and fix its
connection.
Check the continuity and the isolation related
to the mass and the +12 V wiring.
Pin2 mass
Pin3 supply +IC
Pin4 pin A2 of the
E.C.U. decoder.
Is the wiring in good condition?
Fix the electric wiring.
Disconnect the E.C.U. decoder and check the
presence of +12 V at pin A2 of the wiring.
Is there any tension?Replace the anti starting bushing.
Connect t he E.C.U. decoder. Perform the
impulse detection t est with t he t ester CLIP
branched to the pin A2 of the E.C.U. decoder.
S et the contact on and check t he presence of
an impulse. Is there any impulse?
Replace the E .C.U. decoder.
Replace the key.
No
No
No
No
Yes
Yes
Yes
No
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Diag nostic
ALP3. THE ANTI STARTING INDICATOR REMAINS PERMANENTLY LIGHTED
( even when the contact is taken off) OR IT REMAINS PERMANENTLY SWITCHED
OFF
RECOMMENDATION Check if the “Procedure E.C.U. decoder replacement” was correctly performed
Check the fuse F03 condition from the cockpit
fuse box.
Is the fuse good?
Is there the failure “DOORS BLOCKING
CONTACT”.
Check the continuity and the isolation related
to the mass, between the pin A 5 of the E.C.U.
decoder and the dashboard.(pin 6 from black
connector)
Is the wiring good?
Replace the fuse.
Analyse this failure and replace.
Fix the wiring.
Perform the following tests in order to find the
damaged element:
- if the anti starting indicator is permanently
lighted, disconnect the connector of the E.C.U.
decoder a nd check if t he indicator switches
off;
- if the anti starting system is turned off, connect
the pin A5 of t he wiring connector from the
E.C.U. decoder to an electric mass and check
if the indicator turns on.
Are the answers affirmatives?
Replace the instrument panel.
Replace the E .C.U. decoder.
Perform a conformity checking.
AFTER REPAIRING Check the operation of the anti starting system.
Remove by means of the CLIP tester the possible m emorised
failures.
No
No
No
Yes
Y e s
No
Yes
Yes
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Diag nostic
ALP4. CONTACT ON THE ANTI STARTING INDICATOR BLINKS QUICKLY
(engine is not starting)
RECOMMENDATION-
S et the contact on.
Connect the CLIP tester.
Is there any communication between the
tester and E .C.U. decoder ?
Is the state 19D, ACTIVE?
Check the continuity and the isolation related
to the mass and to the + 12V of the wiring
be t we en A6 de c ode r pi n a nd i nj e c t ion
computer pin 58.
Is the wiring good?
S ee ALP1.
Check the correct memorisation of
the anti starting code by the
E.C.U. decoder ; if not, replace
the decoder.
Fix the electric wiring.
Perform the impulse detection test by means
of the CLIP tester connected to the E.C.U.
decoder A6 pin.
Set th e conta c t on a nd c he ck i mpulse s
presence.
Are there any impulses?
Replace the injection computer.
Replace E.C.U. decoder or see t he “ Kit
replacement procedure “.
Perform a conformity checking.
AFTER REPAIRING Check the operation of the anti starting system.
Remove by means of the CLIP tester the possible m emorised
failures.
No
Yes
No
Yes
Yes
No
Yes
No
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Diag nostic
ALP5. THE VEHICLE IS NOT STARTING
RECOMMENDATION-
Is there the failure “SIGNAL MISSING ON
THE CODED LINE E.C.U. DECODER –
COMPUTER INJECTION?”
There is a problem at the shock sensor.
There is an engine problem.No
Yes
Perform a conformity checking.
AFTER REPAIRING Check the operation of the anti starting system.
Remove by means of the CLIP tester the possible m emorised
failures.
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Diag nostic
ALP6. BLOCKING/UNLOCKING DOORS NOT OPERATING
RECOMMENDATION Check with the CLIP tester the absence of the failures.
If there are memorised failures, these must be removed.
Are the doors blocking mechanisms correctly
operating ?Repair the damaged mechanisms.No
Check the continuity and the isolation related to the
mass of the wiring between :
E.C.U . decoder pin B8 actuators
Pin B9 doors
Is the wiring in good condition?
Fix the wiring.No
Check the continuity and the isolation
related to the mass of the wiring between
E.C.U . pin B2 1 switch
decoder Pin B5 5 blocking doors
Is the wiring in good condition?
Repair.
Di sconnect the E.C.U. decoder, then supply
the wiring c onnector with +12 V at pin B9
and the mass at the pi n B8, than versa (+ 12
V at pin B8 and t he mass at pi n B9).
Ar e the actuators bl ocking/unlocking the
doors?
Damaged actuators.
Replace them.
Replace the E.C.U. decoder, t hen perform the “E.C.U. decoder
replacement procedure”. No
Yes
Yes
No
YesYes
AFTER REPAIRING Perform a conformity
checking.
Check the operation of the anti starting system.
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Diag nostic
ALP7. UNLOCKING DOORS NOT OPERATING BY RF REMOTE CONTROL
RECOMMENDATION Check the absence of failures with the CLIP tester.
If there are memorised failures, these must be repaired.
Are the states 11G and 11D be c om ing
A CTIVE when t he RF remote c ontrol is
activated?S ee the treatment of the states 11G
and 11D cf. chapter “Diagnostic”.No
Check the fuse F03 condition from the cockpit
fuse box.
Is it good?
Replace the fuse.No
Ye s
Yes
See the treatment of the failure
“Doors blocking contact” and the state 14 G cf. chapter
“Diagnostic”.
See ALP6.
Yes
No
AFTER REPAIRING Perform a conformity checking.
Check the operation of the anti starting system.
Activate the doors’ locking switch from the
dashboard.
Are the doors blocking/ unlocking ?
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