PETROL INJECTION
Fault finding - System operation
17B
17B - 7
PETROL INJECTION
Fault finding - System operation
17B
17B - 7V9 MR-372-J84-17B050$094.mif
S3000 Injection
Program No.: AD
Vdiag No.: 4C / 54PETROL INJECTION
Fault finding - System operation
1. SYSTEM OPERATION
Composition
The injection system consists of the:
– accelerator potentiometer,
– clutch pedal switch,
– TDC sensor,
– atmospheric pressure sensor,
– air temperature sensor,
– coolant temperature sensor,
– upstream oxygen sensor,
– downstream oxygen sensor,
– cruise control switch,
– steering column switch,
– cruise control on/off switch,
– fuel vapour absorber,
– injection computer,
– motorised throttle valve,
– 4 injectors,
– 4 pencil coils,
– pinking sensor,
– camshaft dephaser solenoid valve (non-LPG K4M only),
– camshaft position sensor (non-LPG K4M only),
– turbocharging pressure sensor (F4R turbo only)
– electric coolant pump (F4R turbo only),
– wastegate solenoid valve (only on F4R Turbo),
– turbocharging solenoid valve (only on F4R-Turbo)
Computer
128 track SAGEM type S3000 FLASH EEPROM computer controlling injection and ignition.
Multipoint injection in sequential mode.
Connections to the other computers:
– air conditioning,
– UCH,
– protection and switching unit (UPC)
– Automatic Gearbox Electronic Control Unit (AUTO).
– airbag,
– ABS/ESP,
– instrument panel.
MR-372-J84-17B050$094.mif
PETROL INJECTION
17B
17B - 21
17B
17B - 21V9 MR-372-J84-17B050$141.mif
S3000 Injection
Program No.: AD
Vdiag No.: 4C / 54PETROL INJECTION
Fault finding - Allocation of computer tracks
Connector (A), 32 tracks:
Track Description
A1 Not used
A2 Cruise control on/off button logical input
A3 CAN L1 passenger compartment multiplex connection
A4 CAN H1 passenger compartment multiplex connection
B1 Not used
B2 Not used
B3 Not used
B4 OBD diagnostic line K
C1 Not used
C2 Not used
C3 Speed limiter on/off button logical input
C4 + Clutch switch signal
D1 + after ignition feed via UPC
D2 Cruise control signal analogue input
D3 Cruise control signal earth
D4 Not used
E1 Not used
E2 Not used
E3 Not used
E4 Brake pedal normally closed switch no. 1 signal
F1 Not used
F2 + 5 V supply, accelerator pedal potentiometer gang 2
F3 Accelerator pedal potentiometer signal, gang 2
F4 Accelerator pedal potentiometer earth, gang 2
G1 Not used
G2 + 5 V supply, accelerator pedal potentiometer gang 1
G3 Not used
G4 Not used
H1 Not used
H2 Accelerator pedal potentiometer signal, gang 1
H3 Accelerator pedal potentiometer earth, gang 1
H4 Not used
MR-372-J84-17B050$141.mif
PETROL INJECTION
Fault finding - Configurations and programming17B
17B - 29
17B
17B - 29V9 MR-372-J84-17B050$235.mif
S3000 Injection
Program No.: AD
Vdiag No.: 4C / 54
2. PROGRAMMING
Programming the flywheel target
– Decelerate a first time with injection cut-off (i.e. feet off the brake, accelerator pedal and clutch pedals) between
3500 and 3000 rpm, in 3rd gear for a manual gearbox and 2nd for automatic transmission, for at least 5 seconds.
– Decelerate a second time with injection cut-off (i.e. feet off the brake, accelerator pedal and clutch pedals) between
2400 and 2000 rpm for K4 engines and between 1800 and 1400 rpm for R4R engines, in 3rd gear for a manual
gearbox and 2nd for automatic gearbox, for at least 5 seconds.
Check the programming using ET089 Flywheel target programming.
Programming the throttle end stops
When replacing the computer or the motorised throttle valve, with the ignition on, wait 30 seconds so that the
computer may program the MAX and MIN limits, then switch off the ignition and wait 30 seconds for the end of the
Power Latch, so that the computer may store the programmed limits.
Check the programming using ET051 Throttle stop programming.
* This is the moment when, during deceleration with no load, the engine drops to idling speed and recovers torque. LC158Air conditioning heating resistor management
→WITH
→NONE
LC162Controlled coolant thermostat
→WITH
→NONE
LC170Electric coolant pump
→WITH
→NONE
PETROL INJECTION
Fault finding - Fault summary table
17B
17B-32
PETROL INJECTION
Fault finding - Fault summary table
17B
17B-32V9 MR-372-J84-17B050$282.mif
S3000 Injection
Program No.: AD
Vdiag No.: 4C / 54
Tool faultAssociated
DTC codeDescriptionLevel 2 fault
warning light
(Red brake
warning light)Level 1 fault
warning light
(Orange
injection
warning light)No warning
light onOBD
warning light
DF102 2502Signal: power sig.*
available1.DEF
DF105 0585Cruise control/
speed limiter on/off
circuit1.DEF
DF106 0575Cruise control/
speed limiter
function selectors
on steering wheel1.DEF
DF109 0313Low fuel level
misfiring1.DEF/
2.DEF/
3.DEF
DF119 0340Camshaft sensor
signal1.DEF/2.DEF/
3.DEF/4.DEF
DF126 1604Passenger
compartment
heating resistor
(RCH)1.DEF
DF138 0830 Clutch pedal switch 1.DEF
DF154 0335Flywheel signal
sensor circuit1.DEF/2.DEF/
3.DEF
DF196 0225Pedal sensor
circuit gang 11.DEF
CO/CC.0/
CC.1CO/CC.0/
CC.1
2.DEF
DF198 2120Pedal sensor
circuit gang 2CO
CC.0/ CC.1CO
CC.0/ CC.1
DF228 0504 Brake signal 1.DEF/2.DEF
DF232 0530Refrigerant
pressure sensor
circuit1.DEF
DF361 0351Ignition coil control
- cylinders 1 - 4CO.0/CC.1
1.DEFCO.0/CC.1
1.DEF
DF362 0352Ignition coil control
- cylinders 2 - 3CO.0/CC.1
1.DEFCO.0/CC.1
1.DEF
DF377 C115Petrol↔ LPG
connection1.DEF/2.DEF
DF394 0420Catalytic converter
operating fault1.DEF/
2.DEF
DF398 0170Fuel circuit
operating faultCO/ 1.DEF
PETROL INJECTION
Fault finding - Interpretation of faults
17B
17B-86
PETROL INJECTION
Fault finding - Interpretation of faults
17B
17B-86V9 MR-372-J84-17B050$376.mif
S3000 Injection
Program No.: AD
Vdiag No.: 4C / 54
DF138
PRESENT
OR
STOREDCLUTCH PEDAL CIRCUIT
1.DEF: Component in bad condition
NOTESConditions for applying the fault finding procedure to stored faults:
The fault is present with the engine running and following a check on the number of
times the clutch pedal is depressed in relation to the number of gear changes
calculated by the computer.
Special note:
– engine speed surges when changing gear,
– the acquisition is made if the vehicle is not fitted with an automatic transmission,
– in the event of a fault, before replacing any component, check using the diagnostic
tool that the clutch contact is operational and that the recommended clutch pedal
clearance is still valid.
– In the event of an open circuit or short circuit to + 12 V, the clutch pedal is
depressed all the time which makes it impossible to select a cruising speed in cruise
control mode. The speed limiter remains operational in defect mode (inaccurate
speed restriction),
–If short circuit to earth, status ET405 Clutch pedal switch remains INACTIVE.
Check the cleanliness, condition and fitting of the clutch pedal switch.
Repair if necessary.
If the fault is still present, disconnect the switch. Check that when the clutch pedal is depressed, the switch is
closed, and when the clutch pedal is released, the switch is open.
Replace the switch if necessary.
If the fault is still present, manipulate the harness to see if the status changes.
Look for any damage to the wiring harness, and check the condition and connection of the connectors of the
injection computer and clutch pedal switch.
Repair if necessary.
If the fault is still present, check the earth on track 2 of the switch.
If the earth is not present on track 2, check for insulation, continuity and the absence of interference
resistance on the following connection:
earth track 1 Clutch pedal switch
Repair if necessary.
AFTER REPAIRFollow the instructions to confirm repair.
Deal with any other faults.
Clear the stored faults.
S3000_V4C_DF138/S3000_V54_DF138
PETROL INJECTION
Fault finding - Interpretation of faults
17B
17B-87
PETROL INJECTION
Fault finding - Interpretation of faults
17B
17B-87V9 MR-372-J84-17B050$376.mif
S3000 Injection
Program No.: AD
Vdiag No.: 4C / 54
DF138
CONTINUED
If the fault is still present, check for insulation, continuity and the absence of interference resistance between
the following connection:
Injection computer, connectorA, track C4 track 2 Clutch pedal switch
Repair if necessary.
If the fault is still present, deal with the other faults then proceed to the conformity check.
AFTER REPAIRFollow the instructions to confirm repair.
Deal with any other faults.
Clear the stored faults.
PETROL INJECTION
Fault finding - Interpretation of faults
17B
17B-88
PETROL INJECTION
Fault finding - Interpretation of faults
17B
17B-88V9 MR-372-J84-17B050$376.mif
S3000 Injection
Program No.: AD
Vdiag No.: 4C / 54
DF154
PRESENT
OR
STOREDFLYWHEEL SIGNAL SENSOR CIRCUIT
1.DEF: Abnormal voltage
2.DEF: Tooth lost
3.DEF: Non-compliance with emission control standards
NOTESPriority when dealing with a number of faults:
If faults DF154, DF119 Camshaft sensor circuit and DF080 Camshaft dephaser
circuit are present, ignore DF080 and deal with the other 2 faults first.
Conditions for applying the fault finding procedure to stored faults:
The fault is declared present after the starter motor has been running for 10 seconds
or at an engine speed above 600 rpm.
Special note:
–the OBD warning light is lit,
– In the event of flywheel signal loss, the injection and ignition are cut off: the vehicle
stalls and cannot be restarted.
1.DEF
NOTESNone.
Check the cleanliness, condition and the fitting of the flywheel.
Repair if necessary.
If the flywheel has been replaced or removed, the flywheel target has to be reinitialised, then reprogrammed.
Programming reinitialisation:
Use command RZ005: Programming.
Carrying out the flywheel target programming:
– Decelerate a first time with injection cut-off (i.e. feet off the brake, accelerator pedal and clutch pedals) between
3500 and 3000 rpm, in 3rd gear for a manual gearbox and 2nd for automatic gearbox, for at least 5 seconds.
– Decelerate a second time with injection cut-off (i.e. brake, accelerator and clutch pedals released) between
2400and 2000 rpm for K4 engines and between 1800 and
1400 rpm for F4R engines, in 3rd gear for a manual gearbox and 2nd for an automatic gearbox, for at least
5 seconds.
After the operation, check that status ET089 Flywheel target programming is COMPLETED.
(*This is the moment when, during deceleration with no load, the engine drops to idle speed and recovers torque).
AFTER REPAIRFollow the instructions to confirm repair.
Deal with any other faults.
Clear the stored faults.
S3000_V4C_DF154/S3000_V54_DF154
PETROL INJECTION
Fault finding - Interpretation of faults
17B
17B-89
PETROL INJECTION
Fault finding - Interpretation of faults
17B
17B-89V9 MR-372-J84-17B050$376.mif
S3000 Injection
Program No.: AD
Vdiag No.: 4C / 54
DF154
CONTINUED
2.DEF
NOTESNone.
Check that the engine speed sensor is correctly fitted and positioned (see MR 364 or 370 Mechanics, 17B,
Petrol injection, engine speed and position sensor).
Check the cleanliness and condition of the engine speed sensor.
Repair if necessary.
Disconnect the battery and the injection computer.
Check the cleanliness and condition of the connections.
Use the "Universal bornier" to check the insulation and continuity of the following connections:
Computer, connector B, track E4 track 2 or B of the engine speed sensor
Computer, connector B, track F3 track 1 or A of the engine speed sensor
Repair if necessary.
Check the resistance of the engine speed sensor between tracks 1 and 2:
Replace the engine speed sensor if the resistance is not between 235 ± 60Ω at 20°C.
If the engine speed sensor has been replaced, the flywheel target has to be reinitialised, then reprogrammed.
Programming reinitialisation:
Use command RZ005: Programming.
Carrying out the flywheel target programming:
– Decelerate a first time with injection cut-off (i.e. feet off the brake, accelerator pedal and clutch pedals) between
3500 and 3000 rpm, in 3rd gear for a manual gearbox and 2nd for automatic gearbox, for at least 5 seconds.
– Decelerate a second time with injection cut-off (i.e. brake, accelerator and clutch pedals released) between
2400and 2000 rpm for K4 engines and between 1800 and
1400 rpm for F4R engines, in 3rd gear for a manual gearbox and 2nd for an automatic gearbox, for at least
5 seconds.
After the operation, check that status ET089 Flywheel target programming is COMPLETED.
(*This is the moment when, during deceleration with no load, the engine drops to idle speed and recovers torque).
AFTER REPAIRFollow the instructions to confirm repair.
Deal with any other faults.
Clear the stored faults.