Page 17 of 230

PETROL INJECTION
Fault finding - System operation
17B
17B - 17
PETROL INJECTION
Fault finding - System operation
17B
17B - 17V9 MR-372-J84-17B050$094.mif
S3000 Injection
Program No.: AD
Vdiag No.: 4C / 54
6. Defect modes
Motorised throttle valve
In defect mode, the motorised throttle valve can have 6 different statuses.
Any entry into type 1 to 5 defect mode always leads to the application of type 6. Type 1The throttle opening is less than the Safe mode position. The throttle is no longer activated and is
automatically in Safe mode. The ESP, distance control and cruise control/speed limiter systems are
disabled. The automatic transmission is in "Safe mode".
Type 2The throttle opening is no longer actuated. The engine speed is limited by injection cut-off.
Type 3Defect mode is associated with restructuring of the pedal setpoints (constant pedal setpoint for each
gear).
Type 4The associated defect mode restricts the throttle opening. The maximum throttle valve opening
threshold results in a speed of below 54 mph (90 km/h).
Type 5The computer no longer processes torque changes requested by the ESP, distance control, cruise
control/speed limiter and automatic gearbox systems. This defect mode results from a computer
malfunction, or a fault with the manifold or turbocharging pressure sensor. The system then only uses
the accelerator pedal signal. The ESP, distance control and cruise control/speed limiter systems are
disabled. The automatic transmission is in "Safe mode".
Type 6The turbocharging valve no longer works.
Page 18 of 230

PETROL INJECTION
Fault finding - System operation
17B
17B - 18
PETROL INJECTION
Fault finding - System operation
17B
17B - 18V9 MR-372-J84-17B050$094.mif
S3000 Injection
Program No.: AD
Vdiag No.: 4C / 54
Table of defect modes:
Type 1 Type 2 Type 3 Type 4 Type 5 Type 6
DF004 Turbocharging pressure
sensor circuit---2.DEF1.DEF
2.DEF1.DEF
2.DEF
DF011 Sensor feed voltage no. 11.DEF 1.DEF - 1.DEF - -
DF012 Sensor feed voltage no. 2---1.DEF1.DEF-
DF038 Computer1.DEF 1.DEF - - 1.DEF -
DF046 Battery voltage1.DEF 1.DEF - - - -
DF054 Turbocharging solenoid valve
control circuit-----CO/CC.0./
CC.1
DF078 Motorised throttle control
circuit1.DEF 1.DEF - - - -
DF079 Motorised throttle valve
automatic control6.DEF/CO 6.DEF/CO -2.DEF
3.DEF
4.DEF--
DF089 Inlet manifold pressure sensor
circuit----1.DEF
2.DEF-
DF095 Throttle potentiometer circuit
gang 1CO.0/
CC.1CO.0/
CC.1-CO.0/
CC.1--
DF096 Throttle potentiometer circuit
gang 2CO.0/
CC.1CO.0/
CC.1-CO.0/
CC.1--
DF196 Pedal potentiometer circuit
gang 1--1.DEFCO/CC.0./
CC.1
1.DEF--
DF198 Pedal potentiometer circuit
gang 2--CO/CC.0./
CC.1CO/CC.0./
CC.1--
DF650 Accelerator pedal position
signal--1.DEF1.DEF--
Page 19 of 230

PETROL INJECTION
Fault finding - System operation
17B
17B - 19
PETROL INJECTION
Fault finding - System operation
17B
17B - 19V9 MR-372-J84-17B050$094.mif
S3000 Injection
Program No.: AD
Vdiag No.: 4C / 54
Camshaft dephaser:
The camshaft dephaser ET083 Camshaft dephaser in defect mode may assume two different statuses.
●Status 1
This defect mode covers all faults that affect the dephaser position measurement. The dephaser is set to the
minimum stop and the camshaft angle measurement is forced to 0.
Tooth signal fault.
Tooth/camshaft signal consistency diagnostic.
●Status 2
This defect mode covers all faults affecting the dephaser (pulley and solenoid valve). The dephaser is set to
the minimum stop.
Electrical fault finding on the solenoid valve.
Dephaser position fault finding procedure.
7. Operational safety
Warning lights illumination
The S3000 Injection system manages the illumination of three warning lights and the display of warning messages
according to the severity of the faults detected, with the aim of informing the customer and guiding fault finding.
The injection computer manages the illumination of warning lights and warning messages displayed on the instrument
panel. These warning lights illuminate during the starting phase and in the event of an injection fault or engine
overheating.
The warning light illumination signals reach the instrument panel via the multiplex network.
Warning light illumination principle
During the starting phase (START button pressed) the OBD (On Board Diagnostic) warning light comes on for
approximately 3 seconds then goes out.
If there is an injection fault (level 1), the message CHECK INJECTION is lit, followed by the SERVICE warning light.
It indicates a reduced level of operation and a limited safety level.
The driver should carry out repairs as soon as possible.
Components involved:
– motorised throttle valve,
– accelerator pedal potentiometer,
– inlet manifold pressure sensor,
– computer,
– actuator feed,
– computer feed.
If there is a serious injection fault (level 2), the red engine symbol and the word STOP (display with information
display only), appears with the message ENGINE OVERHEATING followed by the STOP warning light and a
buzzer. If this happens, the vehicle must be stopped immediately.
When a fault causing excessive pollution in the exhaust gases is detected, the orange OBD warning light engine
symbol is lit:
–flashing in the event of a fault which might cause destruction of the catalytic converter (destructive misfires). If this
happens, the vehicle must be stopped immediately.
–constantly in the case of non-compliance with the anti-pollution standards (polluting misfires, catalytic converter
fault, oxygen sensor faults, inconsistency between the oxygen sensors and canister fault).
Page 20 of 230

PETROL INJECTION
Fault finding - System operation
17B
17B - 20
PETROL INJECTION
Fault finding - System operation
17B
17B - 20V9 MR-372-J84-17B050$094.mif
S3000 Injection
Program No.: AD
Vdiag No.: 4C / 54
8. Mileage travelled with fault
These two parameters PR105 Distance travelled with OBD fault warning light on and PR106 Distance travelled
with fault warning light on are used to count the distance travelled with one of the injection fault warning lights lit:
level 1 fault warning light (amber) as well as the OBD warning light.
These counters can be reset to 0 using the diagnostic tool (clear faults command).
9. Inter-system engine functions
The inter-system connections concerning the particular requirements of engine management are as follows:
–OBD warning light illumination request by the instrument panel computer to prevent a pollution fault,
–level 1 warning light illumination request to warn of an operating safety fault relating to the injection system,
–level 2 warning light illumination request to warn of an operating safety fault or provide an engine
overheating alert,
– request for fan assembly activation for engine cooling, but also for the air conditioning and automatic
gearbox,
– air conditioning compressor shut-down request for engine programming requirements such as pulling away,
performance, anti-stalling, overspeed, etc.
– passenger compartment heating resistor shut-down or fixing request for engine programming requirements
such as pulling away, performance, anti-stall, overspeed, etc.
Page 21 of 230

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
Page 22 of 230

PETROL INJECTION
Fault finding - Allocation of computer tracks17B
17B - 22
17B
17B - 22V9 MR-372-J84-17B050$141.mif
S3000 Injection
Program No.: AD
Vdiag No.: 4C / 54
Connector (B), 48 tracks:
Track Description
A1 Injector 1 - control
A2 Injector 2 - control
A3 Injector 3 - control
A4 Injector 4 - control
B1 Not used
B2 Pinking sensor screening earth
B3 Pinking sensor + signal
B4 Pinking sensor - signal
C1 Not used
C2 Not used
C3 Engine speed (LPG) TDC - signal
C4 Not used
D1 Not used
D2 Not used
D3 Motorised throttle valve potentiometer gang 2 signal
D4 + Power latch relay feed output
E1 Turbocharging pressure sensor earth (F4RT 774 and 776 only)
E2 Air temperature sensor signal
E3 Air temperature sensor earth
E4 Position and engine speed sensor - signal (tooth signal)
F1 Turbocharging pressure sensor + signal (F4RT 774 and 776 only)
F2 Coolant temperature sensor + signal
F3 Engine speed and position sensor + signal (tooth signal)
F4 Coolant temperature sensor earth
G1 + 5 V turbocharging pressure sensor (F4RT 774 and 776 only)
G2 Motorised throttle potentiometer + 5 V feed
G3 Motorised throttle valve potentiometer gang 1 signal
G4 Motorised throttle valve potentiometers common earth
H1 Not used
H2 Manifold pressure sensor + 5 V feed
H3 Manifold pressure sensor + signal
H4 Manifold pressure sensor earth
Page 23 of 230
PETROL INJECTION
Fault finding - Allocation of computer tracks17B
17B - 23
17B
17B - 23V9 MR-372-J84-17B050$141.mif
S3000 Injection
Program No.: AD
Vdiag No.: 4C / 54
Connector (B), 48 tracks (continued):
Track Description
J1 Not used
J2 Refrigerant pressure + 5 V feed
J3 Refrigerant pressure + signal
J4 Not used
K1 Not used
K2 Refrigerant pressure sensor earth
K3 Multiplex line L2 engine connection (F4R 771 AUTO, K4M 813 AUTO and K4M 788 LPG only)
K4 Multiplex line H2 engine connection (F4R 771 AUTO, K4M 813 AUTO and K4M 788 LPG only)
L1 Power earth 1
L2 Not used
L3 Inlet camshaft dephaser control (non-LPG K4M only)
L4 Electric coolant pump control (F4RT 774 and 776 only)
M1 Power earth 2
M2 + Battery supply
M3 Motorised throttle valve + signal
M4 Motorised throttle valve - signal
Page 24 of 230
PETROL INJECTION
Fault finding - Allocation of computer tracks17B
17B - 24
17B
17B - 24V9 MR-372-J84-17B050$141.mif
S3000 Injection
Program No.: AD
Vdiag No.: 4C / 54
Connector (C), 48 tracks:
Track Description
A1 Not used
A2 Downstream oxygen sensor + signal
A3 Not used
A4 Not used
B1 Upstream oxygen sensor + signal
B2 Downstream oxygen sensor - signal
B3 Not used
B4 Not used
C1 Upstream oxygen sensor - signal
C2 Not used
C3 Not used
C4 Not used
D1 Ignition coils and petrol pump relay control
D2 Not used
D3 Not used
D4 Not used
E1 Canister bleed solenoid valve control
E2 Camshaft position sensor earth (non-LPG K4M only)
E3 Not used
E4 Not used
F1 Inlet camshaft input frequency sensor (non-LPG K4M only)
F2 Not used
F3 Not used
F4 Not used
G1 Not used
G2 Not used
G3 Not used
G4 Turbocharging solenoid valve control (F4RT 774, 776 only)
H1 Not used
H2 Not used
H3 Not used
H4 Not used