engine overheat RENAULT SCENIC 2011 J95 / 3.G Engine And Peripherals Siemens Injection Workshop Manual

13B-19
MR-372-J84-13B050$195.mif
V17
Siemens Injection
SID301 and 304
Vdiag No.: 44-45-48-49-4D-4C
Program No.: B1 and B2DIESEL INJECTION
Fault finding – Function13B
INTERSYSTEM EXCHANGES
The inter-system connections concerning the particular requirements of engine management are as follows:
●Request for injection computer to switch on the OBD warning light to warn of an OBD related pollution fault.
●Request to switch on the Level 1 warning light to warn of an operational safety fault with the engine
management system which may restrict performance.
●Request to switch on the Level 2 warning light to warn of an operational safety fault with the engine
management system which may result in the engine stopping.
●Request to switch on the Particle Filter and Service warning light to warn of an operational safety fault of the
particle filter system which may result in reduced performance or engine stoppage.
●Request to switch on the Engine overheating warning light to warn of an engine overheating fault or a fault
in the coolant temperature sensor.
●Request to switch on the Particle filter warning light to warn the driver that the particle filter is loaded with
particles (weight of soot more than 30.8 g). As soon as possible, the driver must drive at a speed of more than
25 mph (40 km/h) for 2 minutes to activate regeneration.
The driver must maintain a speed of more than 25 mph (40 km/h) until the particle filter warning light goes out
(Vdiag 45 and 49 only).
●Request to start the fan assembly for engine cooling and also for air conditioning purposes,
●Request to switch off the air conditioning compressor for engine programming requirements such as pulling
away, performance, anti-stalling, overspeed, etc.
●Request to switch off electrical consumers (passenger compartment heating resistor (if fitted), heated rear
screen, etc.) for engine operation purposes such as: pulling away, performance, anti-stalling,
overspeed, etc.
●Formulation of requests to engage electrical consumers and limit power as a function of rail conditions.
This last function is made possible with the introduction of alternator control. Formulation of requests enables
the smooth running of the engine to be improved in the critical operating phases, mainly at idle speed and
when pulling away. These requests pass via the multiplex network to the Protection and Switching Unit where
they are converted before being sent to the alternator.
In comparison to the version without a particle filter (K9K Step 2), the K9K Step 2 particle filter technical
specifications also include:
●Four temperature sensors spread along the exhaust system.
●One differential pressure sensor.
●One fuel injector with a dedicated electric fuel pump.
●An electric water pump (in addition to the mechanical pump) controlled by a relay to cool the turbocharger when
the engine is stopped (only for Clio III, Modus and Mégane II/Scénic II).
●Four heating elements and their control unit.
Oil Control System (OCS) (except Vdiag 44, 45 and 49)
This program takes into account the driving style of the user to warn him of the need for an oil change. This program
counts the number of miles since the last oil change, corrected by a factor which depends on the oil temperature.
When the number of miles exceeds a threshold, the customer is warned by a message to the instrument panel that
the drain must be performed.
After the oil change, the user must reset the oil change interval on the instrument panel.

13B-35
MR-372-J84-13B050$390.mif
V17
13B
DIESEL INJECTION
Fault finding – Interpretation of faults
DF001
PRESENT
OR
STOREDCOOLANT TEMPERATURE SENSOR CIRCUIT
CC.0 : Short circuit to earth
CO.1 : Open circuit or short circuit to +12 V.
1. DEF: Micro-breaks
2. DEF: Signal inconsistency
NOTESConditions for application to a stored fault:
The fault is declared present after the ignition has been switched on for at least
10 seconds.
If the fault is present:
– the engine overheating warning light is lit on the instrument panel,
– the fan assemblies are running,
– the air conditioning compressor is switched off, the coolant temperature value
switches to safe mode, 10°C < PR064 Coolant Temperature < 90°C.
Use CLIO III, MODUS, MEGANE II ph2, SCENIC II ph2 and KANGOO II Wiring
diagrams Technical Note.
Check the connection and condition of the coolant temperature sensor connector, component code244 (see
MR 392, 385, 364, 370 and 417, Mechanical, 19A, Cooling system, Coolant temperature sensor:
Removal - Refitting) and the injection computer, component code120 (see MR 392, 385, 364, 370 and 417,
Mechanical, 13B, Diesel injection, Diesel injection computer: Removal - Refitting).
If the connectors are faulty and if there is a repair procedure (see Technical Note 6015A, Repairing electrical
wiring, Wiring: Precautions for repair) repair the connector(s); otherwise, replace the wiring.
Measure the resistance of the coolant temperature sensor, component code 244, between connections 3C and
3JK.
If the resistance is not:
11332Ω < X < 13588Ω at - 10°C,
2140Ω < X < 2364Ω at 25°C,
771Ω < X < 849Ω at 50°C,
275Ω < X < 291Ω at 80°C,
replace the coolant temperature sensor (see MR 392, 385, 364, 370 and 417, Mechanical, 19A, Cooling
system, Coolant temperature sensor: Removal - Refitting).
Check the insulation, continuity and the absence of interference resistance on the following connections:
–3C between components 244 and 120.
–3JK between components 244 and 120.
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.
AFTER REPAIRDeal with any faults displayed by the diagnostic tool.
Clear the computer fault memory.
Carry out a road test followed by another check with the diagnostic tool.
SID301_V44_DF001 / SID304_V45_DF001 / SID301_V48_DF001 / SID304_V49_DF001 / SID304_V4D_DF001 / SID301_V4C_DF001
MR-372-J84-13B050$390.mif
Siemens Injection
SID301 and 304
Vdiag No. 44-45-48-49-4D-4C
Program No.: B1 and B2

13B-132
MR-372-J84-13B050$585.mif
V17
Siemens Injection
SID301 and 304
Vdiag No.: 44-45-48-49-4D-4C
Program No.: B1 and B2DIESEL INJECTION
Fault finding – Interpretation of statuses13B
ET021
HIGH-SPEED FAN REQUEST
STATUS DEFINITION"ACTIVE": The status indicates that the high-speed fan request is active.
"INACTIVE": The status indicates that the high-speed fan request is not active.
NOTESSpecial notes:
Only perform these tests if the status does not correspond with the system
programming functions.
NOTE:
Status ET021 "High-speed fan request" changes status simultaneously.
Conformity check with engine stopped and ignition on, or engine running, and engine coolant temperature
>80 °C
ACTIVE
The injection computer requests the activation of the high speed GMV when:
– the engine coolant temperature is above 104 °C.
– the injection computer has system faults that could lead to the engine
overheating.
When the high speed fan is supplied:
status ET021 High speed fan request becomes ACTIVE.
INACTIVEThe high-speed engine fan assembly stops when:
– the engine coolant temperature is below 102 °C;
– no fault which could cause engine overheating is present in the injection
system.
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
SID301_V44_ET021/SID304_V45_ET021/SID301_V48_ET021/SID304_V49_ET021/SID304_V4D_ET021/SID301_V4C_ET021

13B-133
MR-372-J84-13B050$585.mif
V17
Siemens Injection
SID301 and 304
Vdiag No.: 44-45-48-49-4D-4C
Program No.: B1 and B2DIESEL INJECTION
Fault finding – Interpretation of statuses13B
ET022
LOW SPEED GMV CONTROL
STATUS DEFINITION"ACTIVE": The status indicates that the low-speed fan request is active.
"INACTIVE": The status indicates that the low-speed fan request is not active.
NOTESSpecial notes:
Only perform these tests if the status does not correspond with the system
programming functions.
NOTE:
Status ET022 Low-speed fan request changes status.
Conformity check with engine stopped and ignition on, or engine running, and engine coolant
temperature > 80 °C
ACTIVE
The injection computer requests the activation of the low speed GMV when:
– the engine coolant temperature is above 96 °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 "Low speed fan request" becomes "ACTIVE"
INACTIVEThe low-speed engine fan assembly stops when:
– the engine coolant temperature is below 94 °C,
– no fault which could cause engine overheating is present in the injection
system.
– the air conditioning is not switched on by the driver.
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
SID301_V44_ET022/SID304_V45_ET022/SID301_V48_ET022/SID304_V49_ET022/SID304_V4D_ET022/SID301_V4C_ET022

13B-171
MR-372-J84-13B050$624.mif
V17
Siemens Injection
SID301 and 304
Vdiag No.: 44-45-48-49-4D-4C
Program No.: B1 and B2DIESEL INJECTION
Fault finding – Interpretation of statuses13B
ET648
FAN UNIT
STATUS DEFINITIONINACTIVE: This status indicates that the cooling fan assembly is INACTIVE.
LOW SPEED: This status indicates that the cooling fan assembly is at LOW SPEED.
HIGH SPEED: This status indicates that the cooling fan assembly is at HIGH SPEED.
NOTESSpecial notes:
Only perform these tests if the status does not correspond with the system
programming functions.
Conformity check with the engine stopped and the ignition on, or engine running, and engine coolant
temperature > 80°C
INACTIVE
The fan assembly is inactive when the coolant temperature does not exceed 96°C.
LOW SPEEDThe injection computer requests the activation of the low speed GMV when:
– the engine coolant temperature is above 96°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 Low speed fan request becomes activated.
The low-speed fan assembly stops when:
– the engine coolant temperature is below 94°C,
– no fault which could cause engine overheating is present in the injection
system.
– the air conditioning is not switched on by the driver.
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
SID301_V44_ET648/SID304_V45_ET648/SID301_V48_ET648/SID304_V49_ET648/SID304_V4D_ET648/SID301_V4C_ET648

13B-172
MR-372-J84-13B050$624.mif
V17
Siemens Injection
SID301 and 304
Vdiag No.: 44-45-48-49-4D-4C
Program No.: B1 and B2DIESEL INJECTION
Fault finding – Interpretation of statuses13B
ET648
CONTINUED
HIGH SPEED
The injection computer requests the activation of the high speed GMV when:
– the engine coolant temperature is above 104°C,
– the injection computer has system faults that could lead to the engine
overheating.
When the high speed fan is supplied:
–status ET021 High speed fan request becomes activated.
The high-speed fan assembly stops when:
– the engine coolant temperature is below 102°C,
– no fault which could cause engine overheating is present in the injection
system.
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.

13B-272
MR-372-J84-13B050$858.mif
V17
Siemens Injection
SID301 and 304
Vdiag No.: 44-45-48-49-4D-4C
Program No.: B1 and B2DIESEL INJECTION
Fault finding – Customer complaints13B
DRIVING BEHAVIOUR
ENGINE CUT-OUT (STALLING) ALP 7
NO OR VERY LITTLE ACCELERATION,
INCREASE IN ENGINE SPEEDALP 8
ENGINE BUCKING ALP 9
ERRATIC ACCELERATION ALP 10
NO ENGINE BRAKING ALP 11
LOSS OF POWER ALP 12
TOO MUCH POWER ALP 13
OVERSPEED AT IDLE SPEED OR ON
RELEASING BRAKEALP 14
EXCESSIVE CONSUMPTION ALP 15
ENGINE OVERHEATING ALP 16
NOISE, ODOURS OR SMOKE
EMISSION CONTROL NOT SATISFACTORY ALP 17
ENGINE NOISE ALP 18
OIL LEAK FROM THE TURBOCHARGER ALP 19
SMOKE FROM THE EXHAUST ALP 20
REGENERATION
PARTICLE FILTER WARNING LIGHT ON ALP 21

13B-289
MR-372-J84-13B050$897.mif
V17
DIESEL INJECTION
Fault finding – Fault Finding Chart
Siemens Injection
SID301 and 304
Vdiag No.: 44-45-48-49-4D-4C
Program No.: B1 and B2
13B
ALP 16 Engine overheating
NOTESOnly address this customer complaint after a complete check with the diagnostic
tool.
Check the cooling system (refer to MR 385 392 364 370 or 417, Mechanical, 19A, Cooling).
Check the injection computer: that the connections and wiring are in good condition, that earths and feeds are
present.
If the wiring is faulty and there is a repair method (see Technical Note 6015A, Repairing electrical wiring,
Wiring: Precautions for repair), repair the wiring, otherwise replace the wiring.
Check the coolant temperature sensor (refer to the interpretation of faults DF001 Coolant temperature sensor
circuit).
Check the condition and connection of the relay/fuse box.
If the wiring is faulty and there is a repair method (see Technical Note 6015A, Repairing electrical wiring,
Wiring: Precautions for repair), repair the wiring, otherwise replace the wiring.
Check that the fan assemblies operate correctly (refer to MR 385 392 364, 370 or 417, Mechanical, 19A,
Cooling).
AFTER REPAIRCarry out a road test followed by a complete check with the diagnostic tool.
SID301_V44_ALP16 / SID304_V45_ALP16 / SID301_V48_ALP16 / SID304_V49_ALP16 / SID304_V4D_ALP16 / SID301_V4C_ALP16