Page 169 of 273

DIESEL INJECTION
Fault finding – Conformity check13B
13B - 169V3 MR-372-J84-13B250$540.mif
EDC16
PROGRAM NO.: C1
Vdiag No.: 51
STARTING
NOTESOnly check conformity after a complete check using the diagnostic tool. The values
shown in this conformity check are given as a guide.
Test Conditions: ENGINE AT IDLE SPEED, COOLANT TEMPERATURE > 80 ˚C.
Order FunctionParameter or Status
checked or ActionDisplay and Notes Fault finding
1Power supplyET001:Computer + after
ignition feedPRESENTIn the event of a fault,
carry out a full fault finding
procedure on the charging
circuit.
2StartingET238:SynchronisationDONEIn the event of a fault, refer
to fault interpretation
DF195 Camshaft/engine
speed sensor
consistency.
ET076:StartingAUTHORISEDIf status ET076 is
PROHIBITED, carry out a
complete fault finding
procedure on the
multiplex network.
3Engine
operation.ET038:EngineRUNNINGNone
4Power supplyPR071:Computer feed
voltage9 V < voltage < 16 VIn the event of a fault,
consult the interpretation
of fault DF047 Computer
supply voltage.
PR358:Sensor reference
voltage3.4 V < voltage < 3.8 VNone
Page 170 of 273
DIESEL INJECTION
Fault finding – Conformity check13B
13B - 170V3 MR-372-J84-13B250$540.mif
EDC16
PROGRAM NO.: C1
Vdiag No.: 51
PROTECTION
NOTESOnly check conformity after a complete check using the diagnostic tool. The values
shown in this conformity check are given as a guide.
Test Conditions: ENGINE AT IDLE SPEED, COOLANT TEMPERATURE > 80 ˚C.
Order FunctionParameter or Status
checked or ActionDisplay and Notes Fault finding
1Engine
immobiliserET341:Immobiliser code
programmedYESIf status ET341 is locked
on NO (see 87B,
Passenger
compartment
connection unit).
ET003:Engine
immobiliserINACTIVEIf status ET003 is locked
on ACTIVE (see 87B,
Passenger
compartment
connection unit).
2Vehicle impactET077:Impact detectedNOIn the event of a fault, refer
to the interpretation of
fault DF069 Impact
detected signal.
3StartingET076:StartingAUTHORISED:
injection authorises
startingIf status ET076 is
PROHIBITED (see 87B,
Passenger
compartment
connection unit).
Page 171 of 273

DIESEL INJECTION
Fault finding – Status summary table13B
13B - 171V3 MR-372-J84-13B250$585.mif
EDC16
PROGRAM NO.: C1
Vdiag No.: 51DIESEL INJECTION
Fault finding – Status summary table
Tool status Diagnostic tool title
ET001+ After ignition computer feed
ET003Engine immobiliser
ET004Air conditioning authorisation
ET007Preheating unit control
ET014Monitor cooling fan 1
ET015Monitor cooling fan 2
ET021High speed fan assembly request
ET022Low speed fan assembly request
ET038Engine
ET042Cruise control/speed limiter
ET076Starting
ET077Impact detected
ET079Air conditioning present
ET088Compressor actuation request
ET104Injector code use
ET111Set number of passenger compartment heating resistors (RCH)
ET112Passenger compartment heating resistor cut-off
ET123Brake contact signal no. 2
ET233Clutch pedal
ET238Synchronisation
ET341Immobiliser code programmed
ET405Clutch pedal switch
ET415Deactivation of cruise control/speed limiter
ET589Electric coolant pump control (turbocharger)
ET651EGR programming cut-off
ET703Cruise control/speed limiter buttons
ET704Brake switch no. 1
ET705Brake switch no. 2
MR-372-J84-13B250$585.mif
Page 172 of 273

DIESEL INJECTION
Fault finding – Interpretation of statuses13B
13B - 172V3 MR-372-J84-13B250$630.mif
EDC16
PROGRAM NO.: C1
Vdiag No.: 51DIESEL INJECTION
Fault finding – Interpretation of statuses
ET001
COMPUTER + AFTER IGNITION FEED
NOTESSpecial notes:
Only perform these tests if the statuses do not correspond with the system
programming functions.
ABSENT
NOTESIgnition on
Check the condition and conformity of supply fuse F5D (5A) of the Protection and Switching Unit.
Repair if necessary.
Check for an earth on the following connections:
Injection computer black, 32-track connector A,
Track G4Battery earth
Injection computer black 32-track connector A,
Track H4Battery earth
Injection computer black 32-track connector A,
Track H1Battery earth
Repair if necessary.
Check for + 12 V on track D1 of connector A of the injection computer.
If there is no voltage, check the continuity and insulation to earth of the following connection:
Injection computer black 32-track connector A,
track D1Track 1 of the UPC black connector
Repair if necessary.
PRESENT
NOTESIgnition on
Check that there is not a + 12 V with ignition switched off on track D1 of connector A of the injection computer.
Repair if necessary.
AFTER REPAIRCarry out a road test followed by another check with the diagnostic tool.
EDC16_V51_ET001
MR-372-J84-13B250$630.mif
Page 173 of 273
DIESEL INJECTION
Fault finding – Interpretation of statuses13B
13B - 173V3 MR-372-J84-13B250$630.mif
EDC16
PROGRAM NO.: C1
Vdiag No.: 51
ET003
ENGINE IMMOBILISER
NOTESSpecial notes:
Only perform these tests if the statuses do not correspond with the system
programming functions.
ACTIVE
INACTIVE
AFTER REPAIRCarry out a road test followed by a complete test with the diagnostic tool.
EDC16_V51_ET003
(See 87B Passenger compartment connection unit).
(See 87B Passenger compartment connection unit).
Page 174 of 273

DIESEL INJECTION
Fault finding – Interpretation of statuses13B
13B - 174V3 MR-372-J84-13B250$630.mif
NO
EDC16
PROGRAM NO.: C1
Vdiag No.: 51
ET004
AC AUTHORISED
NOTESSpecial notes:
Only perform these tests if the statuses do not correspond with the system
programming functions.
YES
The air conditioning authorisation only changes to YES if:
–the air conditioning request has been made by the driver (air conditioning switch in
AC or AUTO position with minimum ventilation),
–the engine is not under full load,
–the air conditioning system is not faulty.
Status ET004 remains at NO under the following conditions:
–Vehicle stopped with the ignition on,
–faults present in the air conditioning circuit,
–no air conditioning request made by the driver,
–engine under full load.
If status ET004 remains NO then the air conditioning should be authorised; check:
–that the air conditioning compressor is activated correctly,
–the air conditioning system supply fuses,
–the presence of refrigerant in the air conditioning circuit,
–that the refrigerant fluid pressure value is consistent at idle speed.
If the fault is still present, check the climate control computer faults (see 62C, Air
conditioning).
AFTER REPAIRCarry out a road test followed by a complete test with the diagnostic tool.
EDC16_V51_ET004
Page 175 of 273

DIESEL INJECTION
Fault finding – Interpretation of statuses13B
13B - 175V3 MR-372-J84-13B250$630.mif
NO
EDC16
PROGRAM NO.: C1
Vdiag No.: 51
ET007
PREHEATING UNIT CONTROL
NOTESSpecial notes:
Only perform these tests if the statuses do not correspond with the system
programming functions.
YES
When the vehicle is started from cold, the injection computer controls the pre-
postheating unit so that the vehicle can be started.
Status ET007 becomes YES a few seconds after the ignition is switched on and during
pre/postheating.
If the vehicle does not start and status ET007 becomes YES, check:
–the F2 (70A) supply fuse on the preheating unit, located on the power supply fuse
plate in the engine connection unit, below the Protection and Switching Unit,
–the resistance of the heater plugs.
Replace any plug whose resistance is not below 2 Ω.
If the vehicle starts and status ET007 remains YES during the engine operating phase,
refer to the interpretation of faults:
–DF017 Preheating relay control circuit.
–DF025 Preheating unit diagnostic connection.
After the engine is started and the preheating phase, the injection computer should stop
the pre-postheating unit operating.
Status ET007 should become NO.
In the event that the vehicle does not start and status ET007 remains NO, check the
continuity and absence of interference resistance of the following connections:
Injection computer Track A4 grey
32-track connector CTrack 9 preheating unit
Injection computer Track E2 grey
32-track connector CTrack 8 preheating unit
Repair if necessary.
If the fault is still present, refer to the interpretation of faults:
–DF017 Preheating relay control circuit.
–DF025 Preheating unit diagnostic connection.
AFTER REPAIRCarry out a road test followed by a complete test with the diagnostic tool.
EDC16_V51_ET007
Page 176 of 273

DIESEL INJECTION
Fault finding – Interpretation of statuses13B
13B - 176V3 MR-372-J84-13B250$630.mif
EDC16
PROGRAM NO.: C1
Vdiag No.: 51
ET014
CHECK COOLING FAN 1
NOTESSpecial notes:
Only perform these tests if the statuses do not correspond with the system
programming functions.
NOTE:
Status ET014 test and status ET022 GMV1 low speed request change their status at the same time.
RUNNING
The low-speed engine fan unit is supplied in three scenarios:
–the engine coolant temperature is above 89 ˚C;
–the air conditioning is operating
–the injection computer has system faults that could lead to the engine overheating.
When the low-speed engine fan is supplied:
–status ET014 GMV 1 test becomes RUNNING status ET022 Low speed GMV
request becomes ACTIVE.
If the low speed GMV does not work (see 87G, engine compartment connection unit).
The low-speed engine fan assembly stops when:
–the engine coolant temperature is below 89 ˚C;
–the air conditioning is not switched on by the driver.
STOPPED
IMPORTANTWARNING
If the UPC does not detect the injection computer frames, the low speed engine
fan is supplied until the battery is completely discharged.
In the event that the low-speed engine fan assembly is faulty, the high-speed
engine fan assembly will then be activated.
AFTER REPAIRCarry out a road test followed by a complete test with the diagnostic tool.
EDC16_V51_ET014