Page 240 of 365
13B-240
MR-372-J84-13B200$612.mif
V13
DIESEL INJECTION
Fault finding – Interpretation of parameters
EDC16
Program No: C1
Vdiag No: 18, 1C, 20,
50, 58, 5C
13B
PR064
COOLANT TEMPERATURE
PARAMETER
DEFINITIONThis parameter indicates the engine coolant temperature in °C.
NOTESSpecial notes:
Only perform these tests if the parameters do not correspond with the system
operation programming.
No faults should be present or stored.
Perform this fault finding procedure:
– after finding an inconsistency in the parameter,
– after a customer complaint (e.g. lack of power).
Conformity check with engine stopped and ignition on.
With the ignition on the coolant temperature varies according to the exterior temperature.
Safe value: 119°C
In the event of a fault, consult the interpretation of fault DF001 Coolant temperature sensor circuit.
Parameter PR059: Inlet air temperature ≈ PR064 cold engine.
Conformity check with engine running, engine coolant temperature > 80°C.
With the engine running at idle speed the coolant temperature varies according to the engine temperature.
Safe value: 119°C
In the event of a fault, refer to the interpretation of DF001 Coolant temperature sensor circuit.
AFTER REPAIRCarry out a road test followed by a check with the diagnostic tool.
EDC16_V50_PR064/EDC16_V58_PR064/EDC16_V5C_PR064/EDC16_V18_PR064/EDC16_V1C_PR064/EDC16_V20_PR064
Page 241 of 365
13B-241
MR-372-J84-13B200$612.mif
V13
DIESEL INJECTION
Fault finding – Interpretation of parameters
EDC16
Program No: C1
Vdiag No: 18, 1C, 20,
50, 58, 5C
13B
PR064
CONTINUED
Sensor electrical conformity.
Check the continuity and absence of interference resistance on the following connections:
– connection code3C,
– connection code 3JK.
Between components 120 and 244.
If the connection or connections are faulty and there is a repair procedure (see Technical Note 6015A, Electrical
wiring repair, Wiring: Precautions for repair), repair the wiring, otherwise replace it.
Measure the resistance between connections 3C and 3JK of component 244.
Replace the sensor if the resistance is not:
11332 Ω < PR064 < 13588 Ω at - 10°C
2140 Ω < PR064 < 2364 Ω at + 25°C
772 Ω < PR064 < 850 Ω at + 50°C
275 Ω < PR064 < 291 Ω at + 80°C
112 Ω < PR064 < 118 Ω at + 110°C
AFTER REPAIRCarry out a road test followed by a check with the diagnostic tool.
Page 243 of 365
13B-243
MR-372-J84-13B200$612.mif
V13
DIESEL INJECTION
Fault finding – Interpretation of parameters
EDC16
Program No: C1
Vdiag No: 18, 1C, 20,
50, 58, 5C
13B
PR073
AIR FLOWMETER FEED VOLTAGE
PARAMETER
DEFINITIONThis parameter indicates the air flowmeter feed 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.
0.5 < PR073 < 1 V
Default value: 0 V.
In the event of a fault, refer to the interpretation of fault DF013 Sensor supply voltage no. 3.
Engine running, engine coolant temperature > 80°C.
1.5 V < PR073 < 2.5 V
Default value: 0 V.
In the event of a fault, refer to the interpretation of fault DF013 Sensor supply voltage no. 3.
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
EDC16_V50_PR073/EDC16_V58_PR073/EDC16_V5C_PR073/EDC16_V18_PR073/EDC16_V1C_PR073/EDC16_V20_PR073
Page 244 of 365
13B-244
MR-372-J84-13B200$648.mif
V13
13B
DIESEL INJECTION
Fault finding – Interpretation of parameters
PR076
REFRIGERANT SENSOR VOLTAGE
PARAMETER
DEFINITIONThis parameter indicates the refrigerant 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 value should be between:
0 V < PR076 < 5 V
In the event of a fault test the multiplex network.
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
EDC16_V50_PR076/EDC16_V58_PR076/EDC16_V5C_PR076/EDC16_V18_PR076/EDC16_V1C_PR076/EDC16_V20_PR076 EDC16
Program No: C1
Vdiag No: 18, 1C, 20,
50, 58, 5C
MR-372-J84-13B200$648.mif
Page 245 of 365
13B-245
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
PR077
EGR VALVE POSITION SENSOR VOLTAGE
PARAMETER
DEFINITIONThis parameter indicates the EGR valve position 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.
0.5 < PR077 < 1.5 V
Default value: 0 V.
In the event of a fault, refer to the interpretation of fault DF012 Sensor supply voltage no. 2.
Engine running, engine coolant temperature > 80°C.
1.5 V < PR077 < 2.5 V
Default value: 0 V.
In the event of a fault, refer to the interpretation of fault DF012 Sensor supply voltage no. 2.
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
EDC16_V50_PR077/EDC16_V58_PR077/EDC16_V5C_PR077/EDC16_V18_PR077/EDC16_V1C_PR077/EDC16_V20_PR077
Page 246 of 365
13B-246
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
PR079
ATMOSPHERIC PRESSURE SENSOR VOLTAGE
PARAMETER
DEFINITIONThis parameter indicates the atmospheric pressure 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, or engine running, and engine coolant temperature
>80 °C.
3.80 V < PR079 < 4 V
In the event of a fault, refer to the interpretation of fault DF003 Atmospheric pressure sensor circuit.
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
EDC16_V50_PR079/EDC16_V58_PR079/EDC16_V5C_PR079/EDC16_V18_PR079/EDC16_V1C_PR079/EDC16_V20_PR079
Page 247 of 365
13B-247
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
PR080
RAIL PRESSURE SENSOR VOLTAGE
PARAMETER
DEFINITIONThis parameter indicates the rail pressure 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.
0.5 V < PR080 < 1 V
Default value: 5 V
In the event of a fault, refer to the interpretation of fault DF013 Sensor supply voltage no. 3.
Engine running, engine coolant temperature > 80°C.
1 V < PR080 < 1.5 V
Default value: 5 V
In the event of a fault, refer to the interpretation of fault DF013 Sensor supply voltage no. 3.
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
EDC16_V50_PR080/EDC16_V58_PR080/EDC16_V5C_PR080/EDC16_V18_PR080/EDC16_V1C_PR080/EDC16_V20_PR080
Page 248 of 365
13B-248
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
PR083
AIR TEMPERATURE SENSOR VOLTAGE
PARAMETER
DEFINITIONThis parameter indicates the air 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 the engine stopped and the ignition on, or with the engine running and the engine
coolant temperature > 80°C.
vdiag 50, 58, 5c:
1.90 V < PR083 < 2.90 V
Default value: 5 V
In the event of a fault, refer to the interpretation of fault DF039 Inlet air temperature sensor circuit.
vdiag 18, 1c, 20:
1.90 V < PR083 < 3.10 V.
Default value: 5 V.
In the event of a fault, refer to the interpretation of fault DF003 Atmospheric pressure sensor circuit.
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
EDC16_V50_PR083/EDC16_V58_PR083/EDC16_V5C_PR083/EDC16_V18_PR083/EDC16_V1C_PR083/EDC16_V20_PR083
