13B-207
MR-372-J84-13B050$702.mif
V17
DIESEL INJECTION
Fault finding – Interpretation of parameters
Siemens Injection
SID301 and 304
Vdiag No.: 44-45-48-49-4D-4C
Program No.: B1 and B2
13B
PR064
COOLANT TEMPERATURE
PARAMETER
DEFINITIONThis parameter indicates the engine coolant temperature in °C.
NOTESSpecial notes:
Only apply the checks if the parameter is inconsistent.
Use CLIO III, MODUS, MEGANE II ph2, SCENIC II ph2 and KANGOO II Wiring
diagrams Technical Note.
Conformity check with the engine stopped and the ignition on, or the engine running and the engine
coolant temperature > 80°C
Check the condition of the coolant temperature sensor connections.
If the connector is faulty and there is a repair procedure (see Technical Note 6015A, Electrical wiring repair,
Wiring: Precautions for repair), repair the connector, otherwise replace the wiring.
Measure the resistance between connections 3C and 3JK of component 244.
If the resistance of the coolant temperature sensor is not:
(theoretical values)
2140 Ω < X < 2364 Ω at 25°C,
771 Ω < X < 849 Ω at 50°C,
275 Ω < X < 291 Ω at 80°C,
replace the coolant temperature sensor (see MR 392, 385, 364, 370
and 417, Mechanical, 19A, Cooling,
Coolant temperature sensor: Removal - Refitting).
AFTER REPAIRDeal with any faults displayed by the diagnostic tool.
Clear the computer memory.
Carry out a road test followed by another check with the diagnostic tool.
SID301_V44_PR064/SID304_V45_PR064/SID301_V48_PR064/SID304_V49_PR064/SID304_V4D_PR064/SID301_V4C_PR064
13B-224
MR-372-J84-13B050$741.mif
V17
DIESEL INJECTION
Fault finding – Interpretation of parameters
Siemens Injection
SID301 and 304
Vdiag No.: 44-45-48-49-4D-4C
Program No.: B1 and B2
13B
PR132
AIR FLOW
PARAMETER
DEFINITIONThis parameter indicates the inlet air flow in mg/st.
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.).
Use CLIO III, MODUS, MEGANE II ph2, SCENIC II ph2 and KANGOO II Wiring
Diagrams Technical Notes.
Sensor electrical conformity
Check the air inlet circuit (from the air filter inlet to the inlet manifold, run test 10 Air line at the turbocharger):
– air filter unit inlet not blocked and filter not clogged,
–visual inspection only, use ALP2 The engine does not start or starts with difficulty,
– 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, exchanger, etc.
– check that the damper valve is not jammed shut (except Vdiag 4C).
Carry out the necessary repairs.
Check the electrical conformity of the air flow sensor:
Check the + 5 V supply to the air flowmeter.
– connection 3KJ of component 799.
AFTER REPAIRDeal with any faults displayed by the diagnostic tool.
Clear the computer memory.
Carry out a road test followed by another check with the diagnostic tool.
SID301_V44_PR132 / SID304_V45_PR132 / SID301_V48_PR132 / SID304_V49_PR132 / SID304_V4D_PR132 / SID301_V4C_PR132
13B-269
MR-372-J84-13B050$819.mif
V17
DIESEL INJECTION
Fault finding – Interpretation of commands
Siemens Injection
SID301 and 304
Vdiag No.: 44-45-48-49-4D-4C
Program No.: B1 and B2
13B
AC236
COOLANT PUMP RELAY
NOTESThis command is used to check the operation of the electric coolant pump relay.
Use the CLIO III, MODUS, MEGANE II ph2 and SCENIC II ph2 Wiring Diagrams
Technical Note.
Vdiag 45, 49 and 4D only. (except Kangoo II).
Check the connection and condition of the coolant pump relay connector, component code 573 and injection
computer connector B, component code 120.
If the connector(s) are faulty and there is a repair procedure (see Technical Note 6015A, Repairing electrical
wiring, Wiring: Precautions for repair), repair the connector(s), otherwise replace the wiring.
Check the insulation, continuity and the absence of interference resistance on the following connections:
–3VG between components 573 and 120,
–3V between components 573 and 369,
–3FB between components 573 and 983,
–3FB1 between components 573 and 983.
If the connection(s) are faulty and there is a repair method (see Technical Note 6015A, Repairing electrical
wiring, Wiring: Precautions for repair), repair the wiring, otherwise replace it.
If the fault is still present, contact the Techline.
SID304_V45_AC236 / SID304_V49_AC236 / SID304_V4D_AC236 / SID301_V4C_AC236
13B-270
MR-372-J84-13B050$819.mif
V17
DIESEL INJECTION
Fault finding – Interpretation of commands
Siemens Injection
SID301 and 304
Vdiag No.: 44-45-48-49-4D-4C
Program No.: B1 and B2
13B
*temp.: temperatureAC239
PARTICLE FILTER TEMPERATURE SENSOR FAULT FINDING
NOTESCarry out this command only under the following conditions:
– DF999 Particle filter downstream temperature sensor circuit,
– DF1000 Particle filter upstream temperature sensor circuit,
With the ignition on and engine switched off and the engine coolant temperature
below 40°C.
This command is used to check the operation of the particle filter temperature sensors.
Use CLIO III, MODUS, MEGANE II ph2, SCENIC II ph2 and KANGOO II Wiring
diagrams Technical Note.
If one of the faults such as DF999 Particle filter downstream temperature sensor circuit or DF1000 Particle
filter upstream temperature sensor circuit is stored, check if it is in short circuit to the + 12 V or in open circuit
using this command.
Procedure:
– Run command AC239 Particle filter temperature sensor fault finding in the presence of the one of these
two faults DF999 Particle filter downstream temperature sensor circuit and/or DF1000 Particle filter
upstream temperature sensor circuit.
– If one or both of these faults becomes present, then the sensor(s) is in short circuit to + 12 V or in open
circuit.
Refer to the interpretation of faults DF999 Particle filter downstream temperature sensor circuit and DF1000
Particle filter upstream temperature sensor circuit.
– If they do not become present, clear the faults on the CLIP diagnostic tool.
SID304_V4D_AC239 / SID304_V45_AC239 / SID304_V49_AC239 / SID301_V4C_AC239
13B-304
MR-372-J84-13B050$936.mif
V17
DIESEL INJECTION
Fault finding – Tests13B
Siemens Injection
SID301 and 304
Vdiag No.: 44-45-48-49-4D-4C
Program No.: B1 and B2
TEST 3 High pressure fuel pressure solenoid valve check
NOTESConditions prior to test:
The entire low pressure system must be in good condition.
Check the sealing of the high pressure pipes and unions.
Cause:
Rail pressure approximately 50 bar during starting.
Use CLIO III, MODUS, MEGANE II ph2, SCENIC II ph2 and Kangoo II Wiring
diagrams Technical Note.
Disconnect the fuel pressure solenoid valve
connector and measure the resistance at the
terminals of the fuel-pressure solenoid valve
between connection 3ZQ of connector B
computer and connection 3FB (or 3FB3 for
Kangoo II) of the Protection and Communication
Unit or the main injection relay.
Is the resistance between 1.5 Ω and 15 Ω?
YES
Check the wiring between the injection computer
and the fuel pressure solenoid valve.
Measure the voltage at connection 3FB on the
connector of the fuel pressure solenoid valve
with the ignition on.
Is the voltage the same as the battery voltage?
YES
Apply the conformity check for ET613 Fuel
pressure regulator
NOReplace the pump (see Replacement of
components).
NOCheck the connection and condition of the
connectors for the fuel pressure solenoid
valve and the main injection relay.
– connection code 3FB1 (or 3FB3 for
Kangoo II) between components
1105 and 983 or 1337.
If the connection is faulty and there is a
repair procedure (see Technical Note
6015A, Electrical wiring repair, Wiring:
Precautions for repair), repair the wiring,
otherwise replace it. Check the main
injection relay.
AFTER REPAIRCarry out a road test followed by a complete check with the diagnostic tool.
SID301_V44_TEST3 / SID304_V45_TEST3 / SID301_V48_TEST3 / SID304_V49_TEST3 / SID304_V4D_TEST3 / SID301_V4C_TEST3
13B-305
MR-372-J84-13B050$936.mif
V17
Siemens Injection
SID301 and 304
Vdiag No.: 44-45-48-49-4D-4C
Program No.: B1 and B2DIESEL INJECTION
Fault finding – Tests13B
TEST 4 Check high-pressure pump (HPP) and fuel flow solenoid valve.
NOTESConditions prior to test:
The entire low pressure system must be in good condition.
Check the sealing of the high pressure pipes and unions.
Test 3 High pressure fuel pressure solenoid valve check is OK.
Cause:
Not enough or no rail pressure during starting.
Rail reference pressure during starting, minimum 150 bar.
Use CLIO III, MODUS, MEGANE II ph2, SCENIC II ph2 and Kangoo II Wiring
diagrams Technical Note.
Remove the fuel flow solenoid valve connector (orange).
Measure the resistance of the fuel flow solenoid valve
connection code 3FB1 between the computer connector
and the injection main relay connector.
Is the resistance between 1.5 Ω and 15 Ω?
YES
Measure the voltage at the flow solenoid valve connector
connection code 3FB1 (or 3FB3 for Kangoo II) with the
ignition on.
Is the voltage the same as the battery voltage?
YES
Use parameter PR739 Fuel flow solenoid valve current
to check the excitation current when the starter is
activated.
Is the excitation current between 0.6A and 1A?
YES
NOReplace the pump.
NOCheck the connection and condition of
the connectors for the fuel pressure
solenoid valve and the main injection
relay.
– connection code 3FB1 (or 3FB3
for Kangoo II) between
components 1105 and 983 or
1337.
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. Check the
main injection relay.
NO
AFTER REPAIRCarry out a road test followed by a complete check with the diagnostic tool.
SID301_V44_TEST4 / SID304_V45_TEST4 / SID301_V48_TEST4 / SID304_V49_TEST4 / SID304_V4D_TEST4 / SID301_V4C_TEST4
B
A
13B-308
MR-372-J84-13B050$936.mif
V17
DIESEL INJECTION
Fault finding – Tests13B
Siemens Injection
SID301 and 304
Vdiag No.: 44-45-48-49-4D-4C
Program No.: B1 and B2
TEST 5 Rail high pressure control circuit check
NOTESConditions prior to test:
Engine temperature between 80°C and 90°C.
All the electrical consumers are switched off.
Air conditioning is switched off.
The tank is at least half-full.
The pipe connections and unions have been checked.
Check the sealing of the high pressure pipes and unions.
Note:
Routine SC017 Regenerate particle filter cannot be performed while command
AC029 High pressure circuit sealing test is active.
Causes:
Rail pressure variations around the reference value.
The rail reference pressure is not reached.
Rough idle.
Possibly noisy combustion.
Use CLIO III, MODUS, MEGANE II ph2, SCENIC II ph2 and Kangoo II Wiring
diagrams Technical Note.
Start the engine and let it idle.
Are there large air bubbles in the transparent
supply pipe leading to the pump?
NO
Remove the fuel flow solenoid valve connector
(orange), does the engine stop?
YES
YESCheck the low pressure system.
NOReplace the pump (the fuel flow solenoid
valve remains open mechanically).
AFTER REPAIRCarry out a road test followed by a complete check with the diagnostic tool.
SID301_V44_TEST5 / SID304_V45_TEST5 / SID301_V48_TEST5 / SID304_V49_TEST5 / SID304_V4D_TEST5 / SID301_V4C_TEST5
A
13B-313
MR-372-J84-13B050$936.mif
V17
DIESEL INJECTION
Fault finding – Tests13B
Siemens Injection
SID301 and 304
Vdiag No.: 44-45-48-49-4D-4C
Program No.: B1 and B2
TEST 6 Major leak in injectors/injectors open
NOTESConditions prior to test:
The entire low pressure system must be in good condition.
Check the sealing of the high pressure pipes and unions.
Te s t 3 High pressure fuel pressure solenoid valve check is OK.
Test 4 High pressure pump (HPP) and fuel flow solenoid valve check is OK.
Te s t 5 Rail high pressure regulation circuit check is OK.
Causes:
Not enough or no rail pressure during starting.
The engine does not start.
Use CLIO III, MODUS, MEGANE II ph2, SCENIC II ph2 and Kangoo II Wiring
diagrams Technical Note.
Measure the resistance at the injectors.
Resistance between 150 and 250 kΩ.
Measure at ambient temperature (approx. 20°C),
allow the engine to cool down for at least
30 minutes.
Is the resistance correct?
YES
NOReplace the corresponding injectors.
AFTER REPAIRCarry out a road test followed by a complete check with the diagnostic tool.
SID301_V44_TEST6 / SID304_V45_TEST6 / SID301_V48_TEST6 / SID304_V49_TEST6 / SID304_V4D_TEST6 / SID301_V4C_TEST6
A