17B-4V2 MR-376-X76-17B050$020.mif
17B
V42 Injection
Program No.: 2A
Vdiag No.: 04, 05, 06,
14, 16, 18
Injection computer:
The injection computer is located in the engine compartment, behind the battery.
TDC sensor:
This sensor is located on the gearbox casing, behind the engine.
Pinking sensor:
This sensor is located between the four injectors.
Refrigerant pressure sensor:
This sensor is located on the air conditioning circuit.
Injection coolant temperature sensor:
This sensor is located on the engine water chamber.
Injection air temperature sensor:
The air temperature sensor is located at the air circuit inlet.
Downstream oxygen sensor:
The downstream oxygen sensor is located on the exhaust pipe downstream of the catalytic converter.
Upstream oxygen sensor:
The upstream oxygen sensor is located on the exhaust pipe after the manifold.
Accelerator potentiometer:
The potentiometer is located on the accelerator pedal.
Brake light switch:
The switch is located on the brake pedal.
Injectors 1, 2, 3, 4:
The injectors are mounted on the engine.
Motorised throttle valve:
The damper valve is located in front of the inlet manifold.
Quadruple ignition coil module (D4D and K7M engines):
The coil module is located in the engine compartment.
Cylinder 1, 2, 3, 4 pencil coils (K4M engine):
They are located on the cylinder head.
Catalytic converter:
The catalytic converter is located on the exhaust pipe downstream of the catalytic pre-converter.
Fan unit relay:
The relay is located on the cooling radiator.
PETROL INJECTION
Fault finding – List and location of components
17B-6V2 MR-376-X76-17B050$030.mif
PETROL INJECTION
Fault finding – Role of components17B
V42 Injection
Program No.: 2A
Vdiag No.: 04, 05, 06,
14, 16, 18
Motorised throttle valve:
The throttle valve allows engine air flow to be managed according to driver requests.
Quadruple ignition coil module (D4D and K7M engines):
The ignition unit enables ignition (explosion timing control).
Cylinder 1, 2, 3, 4 pencil coils (K4M engine):
The pencil coils enable ignition (explosion timing control).
Fan unit relay:
The engine cooling fan unit relay supplies power to the engine cooling fan.
Camshaft dephaser (F4R engine):
The function of the camshaft dephaser (VVT) is to vary the camshaft adjustment.
The system consists of a dephaser (hydraulic part that modifies the camshaft adjustment) and a solenoid valve.
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-16V2 MR-376-X76-17B050$070.mif
17B
V42 Injection
Program No.: 2A
Vdiag No.: 04, 05, 06,
14, 16, 18
Tool fault DTC code Diagnostic tool title
DF0010115 Coolant temperature sensor circuit
DF0020095 Air temperature sensor circuit
DF0110641 Sensor supply voltage no. 1
DF0120651 Sensor supply voltage no. 2
DF0150657 Main relay control circuit
DF0180480 Low-speed fan unit control circuit
DF0260201 Cylinder 1 injector control circuit
DF0270202 Cylinder 2 injector control circuit
DF0280203 Cylinder 3 injector control circuit
DF0290204 Cylinder 4 injector control circuit
DF0380606 Computer
DF0461610 Battery voltage
DF0470560 Computer feed voltage
DF0500571 Brake switch circuit
DF0590301 Misfiring on cylinder 1
DF0600302 Misfiring on cylinder 2
DF0610303 Misfiring on cylinder 3
DF0620304 Misfiring on cylinder 4
DF0650300 Combustion misfire
DF0782100 Motorised throttle control circuit
DF0792119 Motorised throttle valve automatic control
DF0800010 Camshaft dephaser circuit
PETROL INJECTION
Fault finding – Fault summary table
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-20V2 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
DF1235C402 Automatic transmission
DF1265018A LPG pressure sensor circuit
DF12670184 LPG temperature sensor circuit
DF13011570 Status of LPG switch
DF13551656 Multiplexed torque regulator connection
DF13610185 LPG temperature sensor circuit
DF13622666 Tank solenoid valve circuit
DF13632293 LPG pressure
DF1364109A Computer automatic supply relay
DF13652265 LPG tank sender signal voltage
DF136610A0 Cylinder 1 LPG injector circuit
DF136710A1 Cylinder 2 LPG injector circuit
DF136810A2 Cylinder 3 LPG injector circuit
DF136910A3 Cylinder 4 LPG injector circuit
17B-25
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
DF015
PRESENT OR
STOREDMAIN RELAY CONTROL CIRCUITCC.0: Short circuit to earth.
NOTESConditions for applying the fault finding procedure to a stored fault:
The fault is declared present:
– switch on the powerlatch phase - switch off + after ignition feed and switch on the
+ after ignition feed again).
See the Wiring Diagrams Technical Note for Logan, Sandero, Duster, Thalia 2/
Symbol 2, Clio II F 6, Kangoo VLL.
Check the connection and condition of the connectors of the passenger compartment fuse box, component code
1016, of the engine fuse box, component code 597, of the injection computer, component code 120 and of the
injection relay, component code 1047 (for Logan, Sandero, Duster) of the injection locking relay, component
code 238 (for Thalia 2/Symbol 2, Kangoo VLL) or of the injection computer supply relay, component code 983
(for Clio II F 6).
If the connector or connectors are faulty and if there is a repair procedure (see Technical Note 6015A, Repairing
electrical wiring, Wiring: Precautions for repair), repair the connector, otherwise replace the wiring.
Check the condition and operation of the injection relay, component code 1047 (for Logan, Sandero, Duster), of
the injection locking relay, component code 238 (for Thalia 2/Symbol 2, Kangoo VLL) or of the injection computer
supply relay, component code 983 (for Clio II F 6).
In the event of a fault, replace the injection relay or the injection locking relay (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, 87G,
Engine compartment connection unit, Engine compartment connection unit: List and location of
components).
V42_V04_DF015/ V42_V05_DF015/V42_V06_DF015/V42_V14_DF015/V42_V16_DF015/V42_V18_DF015