Page 289 of 431
13B-289
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DIESEL INJECTION
Fault finding – Interpretation of parameters13B
PR063
CONTINUED
Sensor electrical conformity
Check the continuity and absence of interference resistance on the following connections:
– Connection code 3FAB,
– Connection code 3LD,
between components 120 and 1066.
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.
Measure the resistance between connections 3FAB and 3LD of component 1066
Replace the sensor if the resistance is not approximately:
3820 Ω ± 282 at + 10°C
2050 Ω ± 100 at + 25°C
810 Ω
± 47 at + 50°C
EDC16 C36
Program No.: 91
Vdiag No.: 44, 4C, 48,
50, 54, 58
Page 290 of 431

13B-290
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DIESEL INJECTION
Fault finding – Interpretation of parameters13B
PR064COOLANT 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.
There must be no present or stored faults.
Perform this fault finding procedure:
– after finding an inconsistency in the parameter,
– after a customer complaint (e.g. lack of power).
Use Wiring Diagram Technical Note, Mégane II ph2, Scénic II ph2.
Conformity check with engine stopped and ignition on
With the ignition on the coolant temperature varies according to the exterior temperature.
In the event of a fault, refer to the interpretation of DF001 Coolant temperature sensor circuit.
Parameter PR059 Air inlet temperature ≈ PR064 engine cold.
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.
In the event of a fault, refer to the interpretation of DF001 Coolant temperature sensor circuit.
EDC16C36_V44_PR064/EDC16C36_V4C_PR064/EDC16C36_V48_PR064/EDC16C36_V50_PR064/EDC16C36_V54_PR064/
EDC16C36_V58_PR064EDC16 C36
Program No.: 91
Vdiag No.: 44, 4C, 48,
50, 54, 58
Page 291 of 431
13B-291
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
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DIESEL INJECTION
Fault finding – Interpretation of parameters13B
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 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.
Measure the resistance between connections 3C and 3JK of component 244.
Replace the sensor if the resistance is not:
12460 Ω ± 1128 Ω at - 10°C
2252 Ω ± 112 Ω at +25°C
811 Ω ± 39 Ω
at +50°C
283 Ω ± 8 Ω at +80°C
115 Ω ± 3 Ω at +110°C
EDC16 C36
Program No.: 91
Vdiag No.: 44, 4C, 48,
50, 54, 58
Page 292 of 431
13B-292
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DIESEL INJECTION
Fault finding – Interpretation of parameters13B
PR071COMPUTER SUPPLY VOLTAGE
PARAMETER
DEFINITIONThis parameter specifies the supply voltage of the computer 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
The voltage must be between 9 V < PR071 < 16 V
In the event of a fault, carry out a fault finding procedure on the charging circuit and refer to the interpretation for
DF047 Computer supply voltage.
EDC16C36_V44_PR071/EDC16C36_V4C_PR071/EDC16C36_V48_PR071/EDC16C36_V50_PR071/EDC16C36_V54_PR071/
EDC16C36_V58_PR071EDC16 C36
Program No.: 91
Vdiag No.: 44, 4C, 48,
50, 54, 58
Page 293 of 431
13B-293
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
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DIESEL INJECTION
Fault finding – Interpretation of parameters13B
PR073AIR FLOWMETER FEED VOLTAGE
PARAMETER
DEFINITIONThis parameter indicates the power supply of the air flowmeter 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
Default value: 0 V.
In the event of a fault, refer to the interpretation of fault DF013 Sensor feed voltage no. 3.
Engine running, engine coolant temperature > 80°C
1.5 < PR073 < 3.5 V
Default value: 0 V.
In the event of a fault, refer to the interpretation of fault DF013 Sensor feed voltage no. 3.
EDC16C36_V44_PR073/EDC16C36_V4C_PR073/EDC16C36_V48_PR073/EDC16C36_V50_PR073/EDC16C36_V54_PR073/
EDC16C36_V58_PR073EDC16 C36
Program No.: 91
Vdiag No.: 44, 4C, 48,
50, 54, 58
Page 294 of 431
13B-294
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
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DIESEL INJECTION
Fault finding – Interpretation of parameters13B
PR076REFRIGERANT SENSOR VOLTAGE
PARAMETER
DEFINITIONThis parameter indicates the refrigerant sensor 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
0 V ≤ PR076 ≤ 5 V
Carry out fault finding on the climate control computer (see62B, Climate control).
EDC16C36_V44_PR076/EDC16C36_V4C_PR076/EDC16C36_V48_PR076/EDC16C36_V50_PR076/EDC16C36_V54_PR076/
EDC16C36_V58_PR076EDC16 C36
Program No.: 91
Vdiag No.: 44, 4C, 48,
50, 54, 58
Page 295 of 431
13B-295
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
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DIESEL INJECTION
Fault finding – Interpretation of parameters13B
PR077EGR VALVE POSITION SENSOR VOLTAGE
PARAMETER
DEFINITIONThis parameter indicates the power supply of 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 < PR077 < 1.5 V
Default value: 0 V.
In the event of a fault, refer to the interpretation of DF012 Sensor supply voltage no. 2.
Engine running, engine coolant temperature > 80°C
0 < PR077 < 5 V
Default value: 0 V.
In the event of a fault, refer to the interpretation of DF012 Sensor supply voltage no. 2.
EDC16C36_V44_PR077/EDC16C36_V4C_PR077/EDC16C36_V48_PR077/EDC16C36_V50_PR077/EDC16C36_V54_PR077/
EDC16C36_V58_PR077EDC16 C36
Program No.: 91
Vdiag No.: 44, 4C, 48,
50, 54, 58
Page 296 of 431
13B-296
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
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DIESEL INJECTION
Fault finding – Interpretation of parameters13B
PR079ATMOSPHERIC PRESSURE SENSOR VOLTAGE
PARAMETER
DEFINITIONThis parameter indicates the voltage of the atmospheric pressure sensor in volts.
NOTESNone.
Conformity check with engine stopped and ignition on, or engine running, and engine coolant
temperature > 80°C, without electrical consumers
0 V < PR079 < 5 V
In the event of a fault, refer to the interpretation of the fault:
– DF011 Sensor supply voltage no. 1,
– DF012 Sensor supply voltage no. 2,
– DF013 Sensor supply voltage no. 3.
EDC16C36_V44_PR079/EDC16C36_V4C_PR079/EDC16C36_V48_PR079/EDC16C36_V50_PR079/EDC16C36_V54_PR079/
EDC16C36_V58_PR079EDC16 C36
Program No.: 91
Vdiag No.: 44, 4C, 48,
50, 54, 58