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13B-249
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V13
DIESEL INJECTION
Fault finding – Interpretation of parameters
EDC16
Program No: C1
Vdiag No: 18, 1C, 20,
50, 58, 5C
13B
PR084
COOLANT TEMPERATURE SENSOR VOLTAGE
PARAMETER
DEFINITIONThis parameter indicates the coolant temperature sensor voltage in volts.
NOTESSpecial notes:
Only perform these tests if the parameters do not correspond with the system
operation programming.
Conformity check with engine stopped and ignition on.
The voltage should be between 3 V < PR084 < 4 V
Default value: 5 V
In the event of a fault, refer to the interpretation of DF001 Coolant temperature sensor circuit.
Engine running, engine coolant temperature > 80°C.
The voltage should be between 1 V < PR084 < 2 V
Default value: 5 V
In the event of a fault, refer to the interpretation of DF001 Coolant temperature sensor circuit.
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
EDC16_V50_PR084/EDC16_V58_PR084/EDC16_V5C_PR084/EDC16_V18_PR084/EDC16_V1C_PR084/EDC16_V20_PR084
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13B-254
MR-372-J84-13B200$648.mif
V13
DIESEL INJECTION
Fault finding – Interpretation of parameters
EDC16
Program No: C1
Vdiag No: 18, 1C, 20,
50, 58, 5C
13B
PR131
EGR AIR FLOW DIFFERENCE
PARAMETER
DEFINITIONThis parameter indicates the EGR air flow difference.
NOTESSpecial notes:
Only perform these tests if the parameters do not correspond with the system
operation programming.
Conformity check with engine stopped and ignition on, or engine running, and engine coolant temperature
>80 °C.
PR131 = PR146 Inlet air flow – PR171 Air flow setpoint for EGR.
The value must be very close to 0.
In the event of a fault, consult the interpretation of parameter DF056 Air flow sensor circuit.
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
EDC16_V50_PR131/EDC16_V58_PR131/EDC16_V5C_PR131/EDC16_V18_PR131/EDC16_V1C_PR131/EDC16_V20_PR131
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13B-255
MR-372-J84-13B200$648.mif
V13
DIESEL INJECTION
Fault finding – Interpretation of parameters
EDC16
Program No: C1
Vdiag No: 18, 1C, 20,
50, 58, 5C
13B
PR132
AIR FLOW
PARAMETER
DEFINITIONThis parameter indicates the inlet air flow in kg/h.
NOTESSpecial notes:
Only perform these tests if the parameters do not correspond with the system
operation programming.
No faults must be present.
Perform this fault finding procedure:
– after finding an inconsistency in the parameter,
– or after a customer complaint (lack of power, smoke etc.).
Conformity check with engine stopped and ignition on.
Indicates the inlet air flow in kg/h.
The value should be between:
0 kg/h < PR132 < 10 kg/h.
In the event of a fault, refer to the interpretation of DF056 Air flow sensor circuit.
Conformity check with engine running, engine coolant temperature > 80°C.
Indicates the inlet air flow in kg/h.
The value should be between:
Approximately 30 kg/h
In the event of a fault, refer to the interpretation of DF056 Air flow sensor circuit.
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
EDC16_V50_PR132/EDC16_V58_PR132/EDC16_V5C_PR132/EDC16_V18_PR132/EDC16_V1C_PR132/EDC16_V20_PR132
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13B-256
MR-372-J84-13B200$648.mif
V13
DIESEL INJECTION
Fault finding – Interpretation of parameters
EDC16
Program No: C1
Vdiag No: 18, 1C, 20,
50, 58, 5C
13B
PR132
CONTINUED
Sensor electrical conformity.
Test the air inlet circuit (from the air filter inlet to the inlet manifold tracts,
apply test 4 Turbocharged air inlet circuit check):
– air filter unit inlet not blocked and filter not clogged,
–visual inspection only, run test 4 Turbocharged air inlet circuit check for ALP2 Starting difficult or
impossible,
– oil vapour recirculation circuit connected correctly,
–absence of leaks or blockages in the low and high pressure air circuits: ducts, presence and tightness of the
mounting clips, mounting of the turbocharging pressure sensor, intercooler, etc.
– check that the damper valve is not jammed.
Carry out the necessary repairs.
Check the electrical conformity of the air flowmeter:
Check the + 5 V supply to the air flowmeter on connection 3KJ between components 120 and 799.
Check the + 12 V after relay supply to the air flowmeter on connection 3B between components 120 and 799.
Check the continuity and the absence of interference resistance on the following connections:
– connection code 3DV,
– connection code 3DW.
Between components 120 and 799.
If any of the connections are faulty and there is a repair method (see Technical Note 6015A, Electrical wiring
repair, Wiring: precautions for repairs), repair the wiring; otherwise replace the wiring.
With the flow meter connected, the vehicle ignition on and engine stopped:
Measure the voltage between connections 3DV and 3DW between components 120 and 799.
Replace the air flowmeter if its voltage is not approximately 0.5 V < PR073 Air flowmeter supply voltage < 0.7 V.
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
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13B-257
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V13
DIESEL INJECTION
Fault finding – Interpretation of parameters
EDC16
Program No: C1
Vdiag No: 18, 1C, 20,
50, 58, 5C
13B
PR146
INLET AIR FLOW
PARAMETER
DEFINITIONThis parameter indicates the flow of air entering the engine in mg/st.
NOTESSpecial notes:
Only perform these tests if the parameters do not correspond with the system
operation programming.
Conformity check with engine stopped and ignition on.
This parameter indicates the flow of air entering the engine in mg/st.
0 mg/st
In the event of a fault, consult the interpretation of parameter DF056 Air flow sensor circuit.
Engine running, engine coolant temperature > 80°C.
This parameter indicates the flow of air entering the engine in mg/st.
In the event of a fault, consult the interpretation of parameter DF056 Air flow sensor circuit.
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
EDC16_V50_PR146/EDC16_V58_PR146/EDC16_V5C_PR146/EDC16_V18_PR146/EDC16_V1C_PR146/EDC16_V20_PR146
Page 262 of 365

13B-262
MR-372-J84-13B200$648.mif
V13
DIESEL INJECTION
Fault finding – Interpretation of parameters
EDC16
Program No: C1
Vdiag No: 18, 1C, 20,
50, 58, 5C
13B
PR190
IDLE SPEED SETPOINT
PARAMETER
DEFINITIONThis parameter indicates the engine's rotational speed in rpm.
NOTESSpecial notes:
Only perform these tests if the parameters do not correspond with the system
operation programming.
Conformity check with engine stopped and ignition on.
With the ignition on the value is 0 rpm.
In the event of a fault, refer to the interpretation of fault DF005 Engine speed sensor circuit.
Conformity check with engine running, engine coolant temperature > 80°C.
With the engine running at idle speed, the value is approximately 800 rpm.
In the event of a fault, refer to the interpretation of fault DF005 Engine speed sensor circuit.
The difference between the idle speed and its setpoint should be less than 50 rpm.
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
EDC16_V50_PR190/EDC16_V58_PR190/EDC16_V5C_PR190/EDC16_V18_PR190/EDC16_V1C_PR190/EDC16_V20_PR190
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13B-264
MR-372-J84-13B200$648.mif
V13
DIESEL INJECTION
Fault finding – Interpretation of parameters
EDC16
Program No: C1
Vdiag No: 18, 1C, 20,
50, 58, 5C
13B
PR213
RAIL PRESSURE LOOP DIFFERENCE
PARAMETER
DEFINITIONThis parameter indicates that the fuel pressure variation is the difference between the
rail pressure and the rail pressure setpoint.
NOTESSpecial notes:
Only perform these tests if the parameters do not correspond with the system
operation programming.
Conformity check with engine stopped and ignition on.
The value should be:
PR213 = PR008 Rail pressure setpoint – PR038 Rail pressure
In the event of a fault, consult the interpretation of fault DF007 Rail pressure sensor circuit.
Engine running, engine coolant temperature > 80°C.
The value should be:
PR213 = PR008 Rail pressure setpoint – PR038 Rail pressure
In the event of a fault, refer to the interpretation of faults DF007 Rail pressure sensor circuit and DF053 Rail
pressure regulation function.
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
EDC16_V50_PR213/EDC16_V58_PR213/EDC16_V5C_PR213/EDC16_V18_PR213/EDC16_V1C_PR213/EDC16_V20_PR213
Page 265 of 365
13B-265
MR-372-J84-13B200$648.mif
V13
DIESEL INJECTION
Fault finding – Interpretation of parameters
EDC16
Program No: C1
Vdiag No: 18, 1C, 20,
50, 58, 5C
13B
PR358
SENSOR REFERENCE VOLTAGE
PARAMETER
DEFINITIONThis parameter indicates the sensor reference voltage.
NOTESSpecial notes:
Only perform these tests if the parameters do not correspond with the system
operation programming.
Conformity check with engine stopped and ignition on, or engine running, and engine coolant temperature
>80 °C.
The sensor reference voltage must be between 3.4 V < PR358 < 3.8 V.
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
EDC16_V50_PR358/EDC16_V58_PR358/EDC16_V5C_PR358/EDC16_V18_PR358/EDC16_V1C_PR358/EDC16_V20_PR358