Page 156 of 329

13B-156
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
ET160
PREHEATING RELAY CONTROL
STATUS DEFINITION"ACTIVE": This status indicates that the preheating relay control is active.
"INACTIVE": This status indicates that the preheating relay control is not active.
NOTESSpecial notes:
Only perform these tests if the status does not correspond with the system
programming functions.
Conformity check with engine stopped and ignition on, or engine running, and engine coolant temperature
>80 °C
ACTIVE
The status is "ACTIVE" from when the ignition is switched on until the end of pre-
postheating.
The preheating duration varies according to:
●The engine coolant temperature,
●The atmospheric pressure
●The battery voltage.
If the status is inconsistent, consult the interpretation of fault DF017 "Preheating unit
control circuit".
INACTIVEThe status is "INACTIVE" when the engine is started and the engine coolant
temperature is more than 80 °C.
If the status is inconsistent, consult the interpretation of fault DF017 "Preheating unit
control circuit".
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
SID301_V44_ET160/SID304_V45_ET160/SID301_V48_ET160/SID304_V49_ET160/SID304_V4D_ET160/SID301_V4C_ET160
Page 171 of 329

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
Page 172 of 329
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.
Page 259 of 329

13B-259
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
AC037: Preheating relay.
Activating this lets you listen to the operation of the preheating relay and enables the warning light in the
instrument panel to be illuminated.
AC079: Static actuator test.
Activating this allows you to activate the injection system actuators (simultaneously runs commands
AC003, AC005 to AC008, AC012, AC037, AC213, and AC214).
Run this command with the engine stopped and the engine coolant temperature below 40°C.
AC099: Inhibition of electrical consumers.
AC100: Cancel inhibition of electrical consumers.
AC213: Fuel flow solenoid valve.
AC214: Turbocharger control solenoid valve.
Activating this allows you to listen to the operation of the turbocharger control solenoid valve.
AC233: Thermoplungers no. 1 and no. 2 (Vdiag 45, 49 and 4D only).
AC234: Thermoplunger no. 3 (Vdiag 45, 49 and 4D only).
AC235: Thermoplunger no. 4 (Vdiag 45, 49 and 4D only).
AC236: Coolant pump relay (only for vehicles equipped with a particle filter, except KANGOO II).
AC237: Fuel pump relay (only for vehicles equipped with a particle filter).
Activating this allows you to check the sealing on the 5
th particle filter injector circuit.
AC238: Particle filter injector (Only for vehicles equipped with a particle filter).
AC239: Particle filter temperature sensor fault finding (only for vehicles equipped with a particle filter).
Run this command with the engine stopped and the engine coolant temperature below 40°C.
AC260: Thermoplunger relay.
Activating this allows you to check the three thermoplunger relays.
Page 263 of 329

13B-263
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
SC017
CONTINUED
After-Sales regeneration comprises 4 important stages:
– Heating of the engine and checking for a small quantity of soot in the particle filter by measuring the differential
pressure.
– The system changes from combustion mode and starts to regenerate the particle filter. Gradual cooling of the
particle filter.
– End of After-Sales regeneration.
Stopping conditions:
– Dialogue with the diagnostic tool has been lost.
– Vehicle movement detected by speed sensor.
– Brake or clutch pedal depressed.
– Stop regeneration requested by the diagnostic tool.
– End of test.
The procedure lasts 30 minutes.
– At the end of regeneration, a message announces whether the regeneration has been successful or which
operations to carry out.
CONFIRMING THE REGENERATION PROCESS:
At the end of regeneration, a message appears to announce whether the regeneration was successful:
particle filter regeneration successful: regeneration completed correctly.
weight of soot too high - run command SC017 again: regeneration failed because the weight of soot at
the end of regeneration was too high and the temperature upstream of the particle filter was too low. Check
the oil level before starting another regeneration.
weight of soot too high: regeneration failed because the weight of soot at the end of regeneration was
too high in spite of the correct temperature upstream of the particle filter. The particle filter is full of residue
(regeneration impossible), refer to the fault finding chart ALP21 Particle filter warning light lit.
present or stored fault: regeneration failed because faults were declared.
Refer to the interpretation of faults, after resolving the faults, run command SC017 again.
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
.
Page 272 of 329
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
Page 275 of 329

13B-275
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 3 Starting difficult with cold engine
NOTESOnly address this customer complaint after a complete check with the diagnostic
tool.
Check the grade of the engine oil and that the engine oil level is correct.
Perform fault finding on the charging circuit (see Technical Note 6014A, Checking the charging circuit).
Check the starter (see Technical Note 3632A, Starter fault finding).
Check the coolant temperature sensor, fuel sensor and air inlet sensor (refer to the interpretation of faults DF001
Coolant temperature sensor circuit, DF098 Fuel temperature sensor circuit and DF301 Air inlet circuit).
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 preheating system (refer to the interpretation of fault DF025 Preheating unit diagnostic line).
Check the low pressure fuel supply system by performing test 1 Low pressure supply check and test 2
Internal fuel transfer pump (ITP) check.
Check compression values.
AFTER REPAIRCarry out a road test followed by a complete check with the diagnostic tool.
SID301_V44_ALP3 / SID304_V45_ALP3 / SID301_V48_ALP3 / SID304_V49_ALP3 / SID304_V4D_ALP3 / SID301_V4C_ALP3
Page 289 of 329

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