17B-10V2 MR-376-X76-17B050$050.mif
PETROL INJECTION
Fault finding – Features17B
V42 Injection
Program No.: 2A
Vdiag No.: 04, 05, 06,
14, 16, 18
Idle speed management
This programming is used to calculate the adapted idle speed according to the conditions of use (cold engine, air
conditioning requests, electrical consumer use etc.).
Air supply
This is managed by a motorised throttle valve which is controlled by the injection computer.
The injection computer also performs the following tasks using the motorised throttle:
– management of valve oscillations which can produce undesirable torque,
– management of valve movement subject to mechanical faults when the valve reaches its mechanical boundaries,
– management of acoustic faults by limiting throttle opening at a certain engine speed and when stopping the engine.
Torque management
The torque structure is the system for managing engine torque. It is necessary for some functions such as the
electronic stability program (ESP), automatic transmission (BVA) or sequential gearbox (BVR).
Each computer (ESP, sequential gearbox, automatic transmission) sends a request for torque via the multiplex
network to the injection computer. This arbitrates between the various torque requests and the driver's request
(made via the accelerator pedal or the cruise control/speed limiter).
The result of this arbitration gives the torque setpoint. The computer then calculates the throttle position setpoint, the
ignition advance and the wastegate setpoint (if a turbocharged engine) in order to provide the necessary torque.
Ignition management
Management of ignition advance enables the combustion quality to be managed and therefore engine operation to
be optimised. For a positive advance, the ignition point will be before TDC*, however the advance can have a
negative value.
TDC*: Top Dead Centre.
Fuel supply management
The fuel pump ensures the supply of fuel. It is activated for one second each time the + after ignition feed is switched
on. It ensures the correct level of pressure in the circuit and thereby achieves correct engine starting, particularly if
the vehicle has not been used for a long time. When the engine is running, the pump relay is controlled and
therefore the pump is always active.
The petrol vapour absorber enables petrol vapour to be collected in order to limit its release into the atmosphere.
Richness adjustment
Richness is managed using the upstream and downstream oxygen sensors located on the exhaust. For the sensors
to be operational quickly, they need to be heated by the exhaust gas and by a resistor internal to the sensor. These
sensors reflect the efficiency of combustion and, using information sent to the computer, they enable the quantity of
fuel injected to be managed in order to meet the emission control standards and to ensure optimum engine
operation.
17B-12V2 MR-376-X76-17B050$060.mif
17B
V42 Injection
Program No.: 2A
Vdiag No.: 04, 05, 06,
14, 16, 18
OPERATIONS FOR REPLACING OR REPROGRAMMING THE COMPUTER
Procedure to be applied before replacement
This procedure must be applied before replacing or reprogramming the injection computer (see MR 388 (Logan and
Sandero), MR 451 (Duster), MR 423 (Thalia 2/Symbol 2), MR 430 (Clio II F 6), or MR 374 (Kangoo VLL),
Mechanical, 17B, Petrol injection, Petrol injection computer: Removal - Refitting).
– Connect the diagnostic tool (mains or cigarette lighter supply).
– Save the data by running command: SC003 Save computer data. In the event of a fault, contact the Techline.
– In the event of a replacement, note the vehicle VIN code using command ID008 VIN code.
– Switch on vehicle + after ignition feed and wait until the coolant temperature is less than 70°C and the air
temperature is less than 50°C. Consult parameter PR064 Coolant temperature and PR059 Air temperature.
– Apply the programming or reprogramming operations described in Technical Note 3585A Computer
(re)programming procedure.
Procedure to be applied after repair:
This procedure must be applied after replacing or reprogramming the computer.
Entering the saved data
– enter the saved data by running command SC001 Write saved data.
Programming the VIN code
– Display the identifier ID008
If the VIN is not entered, enter the VIN. using command VP010 Enter VIN. IMPORTANT:
– The computer permanently stores the immobilisation function code. It is forbidden to perform tests with
computers borrowed from the Parts Department or from another vehicle.
– Connect a battery charger and switch on the vehicle + after ignition feed.
– Switch off all the electrical consumers (lights, interior lighting, air conditioning, radio, etc.).
IMPORTANT:
It is necessary to respect these temperature values in order to carry out the computer programming or
reprogramming operations.
IMPORTANT:
After (re)programming the computer, switch off the + after ignition feed and wait for the loss of communication
message to appear on the diagnostic tool, if the message does not appear, wait for 9 minutes.
Failure to follow this procedure may cause the computer data to be corrupted.
PETROL INJECTION
Fault finding – Replacement of components
17B-17V2 MR-376-X76-17B050$070.mif
PETROL INJECTION
Fault finding – Fault summary table17B
V42 Injection
Program No.: 2A
Vdiag No.: 04, 05, 06,
14, 16, 18
*Info: InformationTool fault DTC code Diagnostic tool title
DF0810443 Canister bleed solenoid valve circuit
DF0820135 Upstream oxygen sensor heating circuit
DF0830141 Downstream oxygen sensor heating circuit
DF0850627 Fuel pump relay control circuit
DF0880325 Pinking sensor circuit
DF0910500 Vehicle speed signal
DF0920130 Upstream oxygen sensor circuit
DF0930136 Downstream oxygen sensor circuit
DF0950120 Throttle potentiometer circuit gang1
DF0960220 Throttle potentiometer circuit gang 2
DF101C121 ESP multiplex connection
DF1022503 Available alternator power sig.*
DF108C108 LPG/CNG computer multiplex connection
DF1090313 Low fuel level misfire
DF1200335 Engine speed sensor signal
DF1950016 Camshaft sensor / engine speed consistency
DF3190340 Camshaft sensor circuit
DF3420650 Malfunction indicator light circuit
DF3581608 Injector control computer
DF3611351 Ignition coil circuit 1-4
DF3621352 Ignition coil 2-3 circuit
DF3630011 Camshaft dephaser
DF37910A4 Cylinder injector 1 control
17B-19V2 MR-376-X76-17B050$070.mif
PETROL INJECTION
Fault finding – Fault summary table17B
V42 Injection
Program No.: 2A
Vdiag No.: 04, 05, 06,
14, 16, 18
*Refriger: RefrigerantTool fault DTC code Diagnostic tool title
DF8842632 Additional fuel circuit pump relay
DF8870226 Brake - accelerator pedal position
DF8941633 Additional fuel circuit solenoid valve
DF9740225 Pedal potentiometer circuit gang 1
DF9752120 Pedal potentiometer circuit gang 2
DF9921644 Additional heater 1 relay circuit
DF9931645 Additional heater 2 relay circuit
DF9941646 Additional heater 3 relay circuit
DF10150504 Brake switch signal consistency
DF10160833 Clutch switch signal consistency
DF1017061A Computer
DF10340314 Combustion misfire
DF10580106 Inlet pressure consistency
DF1063C415 ESP multiplex connection
DF10680530 Refriger* pressure sensor voltage
DF10720645 Air conditioning compressor relay control
DF10740638 Motorised throttle position inconsistent
17B-41
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.
V2 MR-376-X76-17B050$081.mif
PETROL INJECTION
Fault finding – Interpretation of faults17B
V42 Injection
Program No.: 2A
Vdiag No.: 04, 05, 06,
14, 16, 18
DF059
PRESENT OR
STOREDCOMBUSTION MISFIRES ON CYLINDER 1
1.DEF: Polluting misfiring
2.DEF: Destructive misfiring
NOTESPriority when dealing with a number of faults:
– DF109 Low fuel level misfire,
Check whether there are other cylinders with a combustion misfire fault reported by
the diagnostic tool before starting the fault finding procedure below.
Conditions for applying the fault finding procedure to a stored fault:
The fault is considered present under the following conditions:
– engine running at idling speed.
Special note:
OBD warning light comes on.
1.DEF
NOTESNone.
Check the ignition coil circuit (see MR 388, Mechanical, 17A, Ignition, Ignition: Specifications),
Check the fuel supply circuit (see MR 388 (Logan and Sandero), MR 451 (Duster), MR 423 (Thalia 2/Symbol
2), MR 430 (Clio II F 6) or MR 374 (Kangoo VLL), Mechanical, 13A, Fuel supply, Fuel circuit: Operating
diagram),
Check the fuel supply pump circuit,
Check the condition of the cylinder 1 injector (see MR 388 (Logan and Sandero), Mechanical, 13A, Fuel supply,
Injector rail - Injectors: Removal - Refitting, MR 451 (Duster) or MR 423 (Thalia 2/Symbol 2), MR 430 (Clio II
F 6), MR 374 (Kangoo VLL), Mechanical, 17B, Petrol injection, Injector rail - Injectors: Removal - Refitting),
Check the compression of cylinder 1.
After repair, check that the catalytic converter was not damaged by the misfire.
To do this, switch on the ignition, run the catalytic converter test SC006 Run OBD test: Catalytic converter and
start the engine (only depress the brake pedal to authorise the starting of the engine,
do not touch the accelerator pedal or clutch pedal).
At the end, check the test results:
STATUS1: Fault finding was not performed/impossible to obtain the necessary conditions
STATUS2: The component is in an average condition - sensor OK
STATUS3: The component is in a good condition - sensor OK
STATUS4: The component is in poor condition - replace the catalytic converter (see MR 388 (Logan and
Sandero), MR 451 (Duster), MR 423 (Thalia 2/Symbol 2), MR 430 (Clio II F 6) or MR 374 (Kangoo VLL),
Mechanical, 19B, Exhaust, Catalytic converter: Removal - Refitting).
V42_V04_DF059/ V42_V05_DF059/V42_V06_DF059/V42_V14_DF059/V42_V16_DF059/V42_V18_DF059
17B-43
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.
V2 MR-376-X76-17B050$081.mif
PETROL INJECTION
Fault finding – Interpretation of faults17B
V42 Injection
Program No.: 2A
Vdiag No.: 04, 05, 06,
14, 16, 18
DF060
PRESENT
OR STOREDMISFIRING ON CYLINDER 2
1.DEF: Polluting misfiring
2.DEF: Destructive misfiring
NOTESPriority when dealing with a number of faults:
– DF109 Low fuel level misfire,
Check whether there are other cylinders with a combustion misfire fault reported by
the diagnostic tool before starting the fault finding procedure below.
Conditions for applying the fault finding procedure to a stored fault:
The fault is considered present under the following conditions:
– engine running at idling speed.
Special note:
OBD warning light comes on.
1.DEF
NOTESNone.
Check the ignition coil circuit (see MR 388, Mechanical, 17A, Ignition, Ignition: Specifications),
Check the fuel supply circuit (see MR 388 (Logan and Sandero), MR 451 (Duster), MR 423 (Thalia 2/Symbol
2), MR 430 (Clio II F 6) or MR 374 (Kangoo VLL), Mechanical, 13A, Fuel supply, Fuel circuit: Operating
diagram),
Check the fuel supply pump circuit (see MR 388 (Logan and Sandero), MR 451 (Duster), MR 423 (Thalia 2/
Symbol 2), MR 430 (Clio II F 6) or MR 374 (Kangoo VLL), Mechanical, 13A, Fuel supply, Fuel circuit:
Operating diagram),
Check the condition of the cylinder 2 injector (see MR 388 (Logan and Sandero), Mechanical, 13A, Fuel supply,
Injector rail - Injectors: Removal - Refitting, MR 451 (Duster) or MR 423 (Thalia 2/Symbol 2), MR 430 (Clio II
F 6), MR 374 (Kangoo VLL), Mechanical, 17B, Petrol injection, Injector rail - Injectors: Removal - Refitting),
Check the compression of cylinder 2.
V42_V04_DF060/ V42_V05_DF060/V42_V06_DF060/V42_V14_DF060/V42_V16_DF060/V42_V18_DF060
17B-45
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.
V2 MR-376-X76-17B050$081.mif
PETROL INJECTION
Fault finding – Interpretation of faults17B
V42 Injection
Program No.: 2A
Vdiag No.: 04, 05, 06,
14, 16, 18
DF061
PRESENT OR
STOREDMISFIRING ON CYLINDER 3
1.DEF: Polluting misfiring
2.DEF: Destructive misfiring
NOTESPriority when dealing with a number of faults:
– DF109 Low fuel level misfire,
Check whether there are other cylinders with a combustion misfire fault reported by
the diagnostic tool before starting the fault finding procedure below.
Conditions for applying the fault finding procedure to a stored fault:
The fault is considered present under the following conditions:
– engine running at idling speed.
Special note:
OBD warning light comes on.
1.DEF
NOTESNone.
Check the ignition coil circuit (see MR 388, Mechanical, 17A, Ignition, Ignition: Specifications),
Check the fuel supply circuit (see MR 388 (Logan and Sandero), MR 451 (Duster), MR 423 (Thalia 2/Symbol
2), MR 430 (Clio II F 6) or MR 374 (Kangoo VLL), Mechanical, 13A, Fuel supply, Fuel circuit: Operating
diagram),
Check the fuel supply pump circuit (see MR 388 (Logan and Sandero), Mechanical, 13A, Fuel supply, Fuel
circuit: Operating diagram),
Check the condition of the cylinder 3 injector (see MR 388 (Logan and Sandero), Mechanical, 13A, Fuel supply,
Injector rail - Injectors: Removal - Refitting, MR 451 (Duster) or MR 423 (Thalia 2/Symbol 2), MR 430 (Clio II
F 6), MR 374 (Kangoo VLL), Mechanical, 17B, Petrol injection, Injector rail - Injectors: Removal - Refitting),
Check the compression of cylinder 3.
V42_V04_DF061/ V42_V05_DF061/V42_V06_DF061/V42_V14_DF061/V42_V16_DF061/V42_V18_DF061
17B-47
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.
V2 MR-376-X76-17B050$081.mif
PETROL INJECTION
Fault finding – Interpretation of faults17B
V42 Injection
Program No.: 2A
Vdiag No.: 04, 05, 06,
14, 16, 18
DF062
PRESENT OR
STOREDMISFIRING ON CYLINDER 4
1.DEF: Polluting misfiring
2.DEF: Destructive misfiring
NOTESPriority when dealing with a number of faults:
– DF109 Low fuel level misfire,
Check whether there are other cylinders with a combustion misfire fault reported by
the diagnostic tool before starting the fault finding procedure below.
Conditions for applying the fault finding procedure to a stored fault:
The fault is considered present under the following conditions:
– engine running at idling speed.
Special note:
OBD warning light comes on.
1.DEF
NOTESNone.
Check the ignition coil circuit (see MR 388, Mechanical, 17A, Ignition, Ignition: Specifications),
Check the fuel supply circuit (see MR 388 (Logan and Sandero), MR 451 (Duster), MR 423 (Thalia 2/Symbol
2), MR 430 (Clio II F 6) or MR 374 (Kangoo VLL), Mechanical, 13A, Fuel supply, Fuel circuit: Operating
diagram),
Check the fuel supply pump circuit (see MR 388 (Logan and Sandero), MR 451 (Duster), MR 423 (Thalia 2/
Symbol 2), MR 430 (Clio II F 6) or MR 374 (Kangoo VLL), Mechanical, 13A, Fuel supply, Fuel circuit:
Operating diagram),
Check the condition of the cylinder 4 injector (see MR 388 (Logan and Sandero), Mechanical, 13A, Fuel supply,
Injector rail - Injectors: Removal - Refitting, MR 451 (Duster) or MR 423 (Thalia 2/Symbol 2), MR 430 (Clio II
F 6), MR 374 (Kangoo VLL), Mechanical, 17B, Petrol injection, Injector rail - Injectors: Removal - Refitting),
Check the compression of cylinder 4.
V42_V04_DF062/ V42_V05_DF062/V42_V06_DF062/V42_V14_DF062/V42_V16_DF062/V42_V18_DF062