Page 4 of 236
13B - 4
DIESEL INJECTION
Fault finding - Introduction13B
V10 MR-372-J84-13B150$047.mif
EDC16 INJECTION
Program No.: C1
Vdiag No.: 44, 48 and 4C
4. FAULT FINDING PROCEDURE
Perform a pre-diagnostic on
the system*
Print the system fault finding log
(available on CLIP and in the
Workshop Repair Manual or
Technical Note)
Connect CLIP
no
Dialogue with
computer?
yes
Read the faults
no
Faults
present
yes
Deal with present faults
Deal with stored faults
no
The cause is
still presentFault
solved
yes
* Check the battery charge, the condition of the
fuses and the level in the tank.
See ALP no. 1
Conformity check
no
The cause is
still presentFault
solved
Use Fault Finding Charts
(ALPs)
no
The cause is
still presentFault
solved
Contact the Techline with the
completed fault finding log
Page 203 of 236

13B-203
MR-372-J84-13B150$846.mif
V10
13B
EDC16 INJECTION
Program No.: C1
Vdiag No: 44, 48 and 4CDIESEL INJECTION
Fault finding - Fault finding chart
ALP 1 No dialogue with the computer
NOTESBefore dealing with this customer complaint, check that there are no faults,
and the conformity (or otherwise) of the parameters and statuses using
the diagnostic tool.
If the customer complaint is not eliminated, perform the following checks.
Check the conformity of the vehicle type, and the domain selected on the tool.
Check that the tool is not faulty by trying to establish dialogue with a computer on another vehicle.
Disconnect the injection computer, and check the condition of the contacts:
no oxidation, no damage to pins, etc.
Check the condition and confirmity of UPC fuse F5D 5A.
Replace it if necessary.
Check the continuity and the absence of interference resistance of the following connections:
Injection computer 48-track brown connector B track M2
Injection computer black 32-track connector A track G1
Injection computer black 32-track connector A track G4
Injection computer black 32-track connector A track H4
Injection computer black 32-track connector A track H1Track 1 UPC black PPM1 connector
Track 4 UPC grey PPH1 connector
Vehicle earth
Vehicle earth
Vehicle earth
Repair if necessary.
Check the supply to the diagnostic socket:
+ before ignition feed on track 16,
+ after ignition feed on track 1,
Earth on track 4 and 5.
Repair if necessary.
If the fault is still present, contact the Techline.
AFTER REPAIRCarry out a road test followed by a complete check with the diagnostic tool.
EDC16_V44_ALP1 / EDC16_V48_ALP1 / EDC16_V4C_ALP1
MR-372-J84-13B150$846.mif
Page 206 of 236

13B-206
MR-372-J84-13B150$846.mif
V10
DIESEL INJECTION
Fault finding - Fault finding chart13B
ALP 2
CONTINUED
Refer to the engine
immobiliser fault finding
procedure in the UCH fault
finding.
Check the timing setting, and
the position of the high
pressure pump sprocket.
Check the cylinder
compressions.
Check the cylinder balance
using the Clip function,
Compression test physical
measurement icon.
ET003 not correct or
immobiliser warning
light permanently
illuminated
YESFrom the STATUS menu on your fault finding tool, check the conformity of
the immobiliser system: ET003 Engine immobiliser should be INACTIVE.
ET003 correct (Immobiliser code
warning light switched off)
Check the battery charge and the condition and tightness of the terminals.
Ensure that engine speed reaches 250 rpm when the starter motor is
operated. This is displayed on the parameter screen.
Check the engine earths.
Check the conformity of the inertia switch (according to equipment).
Check the presence and conformity of fuel in the tank. Run test 5 Diesel
fuel conformity check.
Check for the 12 V after relay feed on tracks G1 and M2 of connector B
on the engine management computer (via injection relay).
Check the engine fuses (and their mountings, wires and terminals).
test
Operate the starter:
Does the pressure increase in the rail:
Rail pressure = ~ 170 bar at ~ 250 rpm?
NO
Run a fault finding check on the regulator and high pressure pump by
applying the interpretation of command AC011 Rail pressure regulator.
AFTER REPAIRCarry out a road test followed by a complete check with the diagnostic tool.
EDC16 INJECTION
Program No.: C1
Vdiag No: 44, 48 and 4C