Page 137 of 236

13B - 137
DIESEL INJECTION
Fault finding - Conformity check13B
V10 MR-372-J84-13B150$470.mif
EDC16 INJECTION
Program No.: C1
Vdiag No.: 44, 48 and 4C
COLD LOOP (continued)
NOTESOnly check conformity after a complete check using the diagnostic tool. The values
shown in this conformity check are given as examples.
Test conditions: engine at idle speed, coolant temperature at > 80°.
Order FunctionParameter or Status
checked or ActionDisplay and Notes Fault finding
7 Engine coolingET022: Low speed fan
assembly
requestINACTIVE if air
conditioning not
switched onIf the motor-driven fan
assemblies are being
supplied continuously
without the air
conditioning being
active, the injection
system may be in defect
mode.
Carry out a system fault
test and consult the
interpretation of any faults. ET021: High speed fan
assembly
request
ET014: Fan assembly 1
checkRUNNING if air
conditioning is active
ET015: Fan assembly 2
checkRUNNING if
operating
temperature is
reached
8Coolant
temperaturePR064: Coolant
temperatureShows the engine
coolant temperature
in °C
Default value: 119 °CIn the event of a fault,
consult the interpretation
for DF001 "Coolant
temperature sensor
circuit".
9 Vehicle speed PR089: 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.
With ignition on
PR089 = 0 mph (km/h)In the event of a fault, test
the multiplex network.
Refer to the ABS fault
finding notes for the
interpretation of possible
faults.
Page 143 of 236

13B - 143
DIESEL INJECTION
Fault finding - Conformity check13B
V10 MR-372-J84-13B150$470.mif
EDC16 INJECTION
Program No.: C1
Vdiag No.: 44, 48 and 4C
ENGINE COOLING
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 at > 80°.
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,
consult the
interpretation of DF001
Coolant temperature
sensor circuit.
2 Fan assembliesET022:Low speed
fan assembly
requestINACTIVE if air
conditioning not
switched onIf the fan assemblies
are supplied with the
ignition on, the
injection may be in
defect mode.
Carry out a system fault
test and consult the
interpretation of any
faults. ET021:High speed
fan assembly
request
ET014:Fan assembly
1 checkRUNNING if air
conditioning is active
ET015:Fan assembly
2 checkRUNNING if operating
temperature is reached
3 Sensor feed PR084:Coolant
temperature
sensor
voltageidle speed, engine warm
PR084 = 0.54 V
Safe value: 5 VIn the event of a fault,
consult the
interpretation of DF001
Coolant temperature
sensor circuit.
Page 147 of 236

13B - 147
DIESEL INJECTION
Fault finding - Status summary table13B
V10 MR-372-J84-13B150$517.mif
EDC16 INJECTION
Program No.: C1
Vdiag No.: 44, 48 and 4CDIESEL INJECTION
Fault finding - Status summary table
*RCH: Passenger compartment heating resistorTool Status Diagnostic tool title
ET001+ After ignition computer feed
ET003Engine immobiliser
ET004Air conditioning authorisation
ET007Preheating unit control
ET014Check cooling fan 1
ET015Check cooling fan 2
ET021High speed fan assembly request
ET022Low speed fan assembly request
ET035Reverse gear signal
ET038Engine
ET042Cruise control/speed limiter
ET076Starting
ET077Impact detected
ET078Air regulation
ET079Air conditioning present
ET088Compressor actuation request
ET104Injector code use
ET111RCH* number set
ET112RCH* cut-off
ET233Clutch pedal
ET238Synchronisation
ET341Immobiliser code programmed
ET405Clutch pedal switch
ET413Cruise control/speed limiter function
ET415Deactivation of cruise control/speed limiter
ET703Cruise control/speed limiter buttons
ET704Brake switch no. 1
ET705Brake switch no. 2
MR-372-J84-13B150$517.mif
Page 150 of 236

DIESEL INJECTION
Fault finding - Interpretation of statuses13B
13B-150V10 MR-372-J84-13B150$564.mif
EDC16 INJECTION
Program No.: C1
Vdiag No.: 44, 48 and 4C
ET004
AC AUTHORISED
NOTESOnly perform the tests if the statuses do not correspond with the system programming
functions.
YES
NO
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.
The status ET004 remains at NO" in 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 at NO then the air conditioning should be authorised, check:
– that the air conditioning compressor is activated correctly,
– the air conditioning system feed fuses,
– for gas in the air conditioning circuit,
– the gas pressure value is consistent at idle speed.
If the fault is still present, check the air conditioning computer for faults (See 62A, Air
conditioning).
AFTER REPAIRCarry out a road test followed by another check with the diagnostic tool.
EDC16_V44_ET004/EDC16_V48_ET004/EDC16_V4C_ET004
Page 152 of 236

13B-152
DIESEL INJECTION
Fault finding - Interpretation of statuses13B
V10 MR-372-J84-13B150$564.mif
EDC16 INJECTION
Program No.: C1
Vdiag No.: 44, 48 and 4C
ET014
FAN ASSEMBLY 1 CHECK
NOTESOnly perform the tests if the statuses do not correspond with the system programming
functions.
Note: Status ET022 Low-speed engine fan request and status ET014 Engine fan assembly check 1 change
their status at the same time.
RUNNING
The low-speed fan assembly 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 fan assembly is supplied:
– status ET014 changes to RUNNING
– status ET022 low-speed engine fan request changes to ACTIVE.
In the event that the low-speed engine fan does not work, refer to the UPC fault finding note.
STOPPED
The low-speed fan assembly stops when:
– the engine coolant temperature is below 89°C,
– no air conditioning request made by the driver.
IMPORTANT!WARNING
If the UPC does not detect the injection computer frames, the low-speed engine
fan assembly is supplied until the battery is completely discharged.
In the event that the low-speed engine fan assembly is defective, the high-speed
engine fan assembly will then be activated.
AFTER REPAIRCarry out a road test followed by another check with the diagnostic tool.
EDC16_V44_ET014/EDC16_V48_ET014/EDC16_V4C_ET014
Page 155 of 236

13B-155
DIESEL INJECTION
Fault finding - Interpretation of statuses13B
V10 MR-372-J84-13B150$564.mif
EDC16 INJECTION
Program No.: C1
Vdiag No.: 44, 48 and 4C
Note: Status ET022 Low-speed engine fan request and status ET014 Engine fan assembly check 1 change
their status at the same time.ET022
LOW-SPEED FAN REQUEST
NOTESOnly perform the tests if the statuses do not correspond with the system programming
functions.
ACTIVE
The injection computer requests the activation of the low speed GMV when:
– the engine coolant temperature is above 89°C,
– the injection computer has system faults that could lead to the engine overheating,
– the air conditioning is switched on by the driver.
When the high speed fan is supplied:
– status ET022 High-speed engine fan request changes to ACTIVE,
– status ET014 changes to RUNNING.
In the event that the low-speed engine fan does not work, refer to the UPC fault finding note.
STOPPED
The low-speed fan assembly stops when:
– the engine coolant temperature is below 89°C,
– no fault which could cause engine overheating is present in the injection system.
– the air conditioning is not switched on by the driver.
IMPORTANT!WARNING
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 defective, the high-speed
engine fan assembly will then be activated.
AFTER REPAIRCarry out a road test followed by another check with the diagnostic tool.
EDC16_V44_ET022/EDC16_V48_ET022/EDC16_V4C_ET022
Page 163 of 236
13B-163
DIESEL INJECTION
Fault finding - Interpretation of statuses13B
V10 MR-372-J84-13B150$564.mif
EDC16 INJECTION
Program No.: C1
Vdiag No.: 44, 48 and 4C
ET088
REQUEST TO START COMPRESSOR
ACTIVEThe air conditioning request has been made by the driver when pressing one of the air
conditioning controls (Auto, or AC).
Status ET088 becomes ACTIVE and the computer authorises or does not authorise air
conditioning depending on the operating conditions.
If status ET088 does not become ACTIVE after pressing the control button (See 62A, Air
conditioning).
INACTIVE
When the driver deactivates the air conditioning, status ET088 must become INACTIVE.
If this does not happen, (See 62A, Air conditioning).
AFTER REPAIRCarry out a road test followed by another check with the diagnostic tool.
EDC16_V44_ET088/EDC16_V48_ET088/EDC16_V4C_ET088
Page 180 of 236
13B - 180
DIESEL INJECTION
Fault finding - Parameter summary table13B
V10 MR-372-J84-13B150$611.mif
EDC16 INJECTION
Program No.: C1
Vdiag No.: 44, 48 and 4CDIESEL INJECTION
Fault finding - Parameter summary table
Tool 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
PR046EGR solenoid valve OCR
PR047Turbocharging pressure OCR
PR048Rail pressure regulation valve OCR
PR050Damper flap OCR
PR051EGR valve position feedback
PR053Speed requested by air conditioning
PR055Engine speed
PR059Inlet air temperature
MR-372-J84-13B150$611.mif