Page 163 of 273

DIESEL INJECTION
Fault finding – Conformity check13B
13B - 163V3 MR-372-J84-13B250$540.mif
EDC16
PROGRAM NO.: C1
Vdiag No.: 51
COLD LOOP
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
1EnginePR055:Engine speedGives the engine's
speed in rpmIn the event of a fault, refer
to the interpretation for
fault DF005 Engine
speed sensor circuit.
2Driver controlET088:Compressor
actuation requestACTIVE if air
conditioning requestIf the air conditioning is
authorised or the
compressor is actuated
(see 62A Air
conditioning). ET004:Air conditioning
authorisationYES if air
conditioning request
3Air conditioning
speedPR053:Speed requested
by air
conditioning875 rpm
according to the
computer programThis parameter is only
valid when the engine has
been started
4OutputPR125:Power absorbed
by the air
conditioning
compressorIndicates the power
absorbed by the air
conditioning
compressorThis parameter is only
valid when the engine has
been started
5Engine coolingET021:Low speed fan
assembly
requestACTIVE if air
conditioning request
If the fan assemblies are
supplied with ignition on,
the injection system may
be in defect mode.
Carry out a system fault
test and refer to the
interpretation of any
faults. ET022:High speed fan
assembly
requestINACTIVE
ET014:Monitor cooling
fan 1RUNNING if air
conditioning
requested
ET015:Monitor cooling
fan 2STOPPED
Page 164 of 273

DIESEL INJECTION
Fault finding – Conformity check13B
13B - 164V3 MR-372-J84-13B250$540.mif
EDC16
PROGRAM NO.: C1
Vdiag No.: 51
COLD LOOP (CONTINUED)
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
6Coolant
temperaturePR064:Coolant
temperatureShows the engine
coolant temperature
in ˚C
Default value: 119 ˚CIn the event of a fault, refer
to the interpretation of
DF001 Coolant
temperature sensor
circuit.
7Vehicle speedPR089:Vehicle speedGives the vehicle
speed in mph. This
parameter is
transmitted by the ABS
computer. This signal is
transmitted to the
injection on the
multiplex network.In the event of a fault, test
the multiplex network.
For the interpretation of
possible faults (see 38C,
Anti-lock braking
system).
8RefrigerantPR037:Refrigerant
pressure1 < X < 27 barIn the event of a fault, refer
to the fault finding
procedure for fault DF049
Refrigerant sensor
circuit. PR076:Refrigerant
sensor voltage0 V < X < 5 V
Page 165 of 273

DIESEL INJECTION
Fault finding – Conformity check13B
13B - 165V3 MR-372-J84-13B250$540.mif
EDC16
PROGRAM NO.: C1
Vdiag No.: 51
HEATING
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
1Coolant
temperaturePR064:Coolant
temperatureShows the engine coolant
temperature in ˚C
Default value: 119 ˚CIn the event of a fault, refer
to the interpretation of
DF001 Coolant
temperature sensor
circuit.
2Passenger
Compartment
Heating
Resistors (RCH)ET111:Set number of
Passenger
Compartment
Heating
ResistorsDepending on the
requirements of the
injection system
(e.g. torque reduction,
power requirements), the
injection computer sets
the number of activated
passenger compartment
heating resistors
(no more or no fewer than
required)
ET111 = NOIf there is a fault,
(see 87B, Passenger
compartment
connection unit).
ET112:Passenger
Compartment
Heating
Resistor cut-offStatus ET112 shows
whether the injection
computer has requested
the passenger
compartment heating
resistors to be cut out
ET112 = NO
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 191 of 273

DIESEL INJECTION
Fault finding – Interpretation of statuses13B
13B - 191V3 MR-372-J84-13B250$630.mif
COMPLETED
EDC16
PROGRAM NO.: C1
Vdiag No.: 51
ET238
SYNCHRONISATION
NOTESSpecial notes:
Only perform these tests if the statuses do not correspond with the system
programming functions.
WARNING
Synchronisation is carried out during the engine starting phase. This is established between the camshaft position
sensor and the TDC sensor.
Once this synchronisation has been carried out, it enables the computer to identify cylinder no. 1 and to calculate
the precise position of the cylinder's Top Dead Centre.
NOT PERFORMED
When the engine is stopped but the ignition switched on, cylinder no. 1 is no longer
indicated.
Status ET238 is NOT DONE; synchronisation between the crankshaft and the camshaft
has not been carried out.
Synchronisation is carried out during the engine starting phase.
Cylinder No. 1 is indicated and synchronisation will be performed once the engine is
started.
Status ET238 is DONE.
If after several attempts to start the engine, status ET238 remains NOT DONE, refer to
the interpretation of the following faults:
–DF005 Engine speed sensor circuit.
–DF097 Camshaft sensor circuit.
If the engine does still not start, consult the Customer complaints section, ALP2
Starting faults.
AFTER REPAIRSwitch off the ignition and carry out a road test followed by a test with the diagnostic tool
EDC16_V51_ET238
Page 206 of 273

DIESEL INJECTION
Fault finding – Parameter summary table13B
13B - 206V3 MR-372-J84-13B250$675.mif
EDC16
PROGRAM NO.: C1
Vdiag No.: 51DIESEL INJECTION
Fault finding – Parameter summary table
OCR*: opening cyclic ratioTool parameter Diagnostic tool title
PR005EGR valve opening setpoint
PR006Rail pressure regulator current
PR007Rail pressure regulator current setpoint
PR008Rail pressure setpoint
PR009Turbocharging pressure setpoint
PR011Turbocharging solenoid valve position correction
PR015Engine torque
PR016Alternator flow
PR017Fuel flow
PR022EGR valve position feedback loop difference
PR030Accelerator pedal position
PR035Atmospheric pressure
PR037Refrigerant pressure
PR038Rail pressure
PR041Turbocharging pressure
PR047Turbocharging pressure OCR*
PR048OCR* rail pressure regulation valve
PR051EGR valve position feedback
PR053Speed requested by air conditioning
PR055Engine speed
PR059Inlet air temperature
PR061Exterior air temperature
PR064Coolant temperature
PR071Computer feed voltage
PR073Air flowmeter feed voltage
PR076Refrigerant sensor voltage
PR077EGR valve position sensor voltage
MR-372-J84-13B250$675.mif
Page 207 of 273

DIESEL INJECTION
Fault finding – Parameter summary table13B
13B - 207V3 MR-372-J84-13B250$675.mif
EDC16
PROGRAM NO.: C1
Vdiag No.: 51
OCR*: opening cyclic ratioTool parameter Diagnostic tool title
PR079Atmospheric pressure sensor voltage
PR080Rail pressure sensor voltage
PR081Inlet temperature sensor voltage
PR084Coolant temperature sensor voltage
PR089Vehicle speed
PR128First EGR valve offset
PR129Last EGR valve offset
PR130Cruise control setpoint
PR131EGR air flow variation
PR132Air flow
PR146Inlet air flow
PR147Pedal potentiometer voltage gang 1
PR148Pedal potentiometer voltage gang 2
PR157Fuel flow setpoint
PR171Air flow setpoint for EGR
PR190Engine idle speed setpoint.
PR213Rail pressure loop difference
PR220EGR valve OCR*
PR358Sensor reference voltage
PR364Cylinder no. 1 fuel flow correction
PR365Cylinder no. 4 fuel flow correction
PR385Exhaust pipe flow
PR405Cylinder no. 2 fuel flow correction
PR406Cylinder no. 3 fuel flow correction
PR417Air inlet valve OCR
PR420Damper valve error counter
PR672Damper valve position setpoint
Page 208 of 273
DIESEL INJECTION
Fault finding – Command summary table13B
13B -208V3 MR-372-J84-13B250$720.mif
EDC16
PROGRAM No: C1
Vdiag No.: 51DIESEL INJECTION
Fault finding – Command summary table
Tool command Diagnostic tool title
SC001Write saved data
SC002Enter injector codes
SC003Save computer data
SC036Reinitialise programming
RZ005Programming
RZ007Fault memory
RZ034Computer memory
LC009Air conditioning
LC065Water in diesel fuel sensor
LC120Cruise control
LC121Speed limiter
VP010Enter VIN
AC001Preheating unit
AC004Turbocharging solenoid valve
AC011Rail pressure regulator
AC012Damper valve
AC195Electric coolant pump