2008 RENAULT SCENIC ignition

17C-28
MR-372-J84-17C000$354.mif
V2
GAS INJECTION
Fault finding - Interpretation of faults
LPG 3000
Program No: AB
Vdiag No: 08/10
17C
DF022
PRESENT
COMPUTER
1.DEF: Internal electronic fault
2.DEF: Non-compliance with emission control standards
NOTESFault finding procedure application conditions:
Only when fault is present.
Special note:
This fault appears when the ignition is switched off (power latch phase: computer data
backup phase) or during the engine stop phase.
Clear the faults from memory and then start the engine.
If the fault is still present, contact the Techline.
AFTER REPAIRDeal with any faults displayed by the diagnostic tool.
Clear the computer memory.
Carry out a road test followed by another check with the diagnostic tool.
GAZ3000_V08_DF022P / GAZ3000_V10_DF022

17C-29
MR-372-J84-17C000$354.mif
V2
GAS INJECTION
Fault finding - Interpretation of faults
LPG 3000
Program No: AB
Vdiag No: 08/10
17C
DF024
PRESENT
OR
STOREDFUEL PUMP CUT-OFF RELAY CIRCUIT
CO.0: Open circuit or short circuit to earth
CC.1: Short circuit to + 12 Volts
1.DEF: Non-compliance with emission control standards
NOTESPriority when dealing with a number of faults:
If fault DF021 LPG tank solenoid valve relay circuit is present or stored, deal with
this fault first.
Conditions for applying the fault finding procedure to stored faults:
The fault is declared present after the engine has been running for 10 seconds in
LPG mode.
Manipulate the wiring harness between the LPG computer and the fuel pump cut-off relay in order to produce
a change in status (present ↔ stored).
Look for any damage to the wiring harness and check the connection and condition of the fuel pump cut-off
relay and its connections.
Check the insulation in relation to earth and the continuity and the absence of interference resistance on
the connection between:
For Mégane 2:
Main relay track 5
For Logan:
Double control relay unit track A3track 1 of the fuel pump cut-off relay
track B5 of the fuel pump cut-off relay
Repair if necessary.
Check the insulation in relation to + 12V and the continuity and absence of interference resistance on
the connection between:
LPG computer track F3 track 2 of the fuel pump cut-off relay
Repair if necessary.
In LPG operating mode, using status ET025 Fuel pump, check that status ET025 is ACTIVE when starting
and then changes to INACTIVE after 1 minute.
If ET025 does not change to INACTIVE, check for earth on track 2 of the fuel pump cut-off relay.
If, with the ignition on, the computer does not control the fuel pump cut-off relay on track 2 through an earth,
contact your Techline.
If the fault is still present, replace the fuel pump cut-off relay.
If the fault is still present, deal with the other faults, then proceed to the conformity check.
AFTER REPAIRDeal with any faults displayed by the diagnostic tool.
Clear the computer memory.
Carry out a road test followed by another check with the diagnostic tool.
GAZ3000_V08_DF024 / GAZ3000_V10_DF024

17C-39
MR-372-J84-17C000$354.mif
V2
GAS INJECTION
Fault finding - Interpretation of faults
LPG 3000
Program No: AB
Vdiag No: 08/10
17C
DF081
CONTINUED
With the ignition on,
–check for + 12V on track 1 of injector 2,
–check for earth on track 2 of injector 2 when command AC020 Cylinder 2 injector is run.
Repair if necessary.
If the fault is still present, contact the Techline.
AFTER REPAIRDeal with any faults displayed by the diagnostic tool.
Clear the computer memory.
Carry out a road test followed by another check with the diagnostic tool.

17C-40
MR-372-J84-17C000$354.mif
V2
GAS INJECTION
Fault finding - Interpretation of faults
LPG 3000
Program No: AB
Vdiag No: 08/10
17C
DF083
PRESENT
OR
STOREDLPG PRESSURE SENSOR CIRCUIT
CC.0: Short circuit to earth
CO.1: Open circuit or short circuit to + 12V
1.DEF: Non-compliance with emission control standards
NOTESNone
Special note:
The fault is declared present when the ignition is switched on.
Manipulate the wiring harness between the Gas computer and the gas pressure sensor in order to produce
a change in status (present to stored).
Look for any damage to the wiring harness and check the connection and condition of the LPG pressure/
temperature sensor and its connections.
Replace or repair the connector(s) if necessary.
Check for + 5V on track 1 of the LPG pressure/temperature sensor in LPG mode.
Check the insulation in relation to earth and the continuity and the absence of interference resistance on
the connection between:
LPG computer track A3 track 1 of the LPG temperature/pressure sensor
Repair if necessary.
Check for earth on track 3 of the LPG temperature/pressure sensor in LPG mode.
Check the insulation in relation to + 12V and the continuity and absence of interference resistance on
the connection between:
LPG computer track B3 track 3 of the LPG temperature/pressure sensor
Repair if necessary.
Check the insulation, continuity and the absence of interference resistance on the connection between:
LPG computer track C4 track 2 of the LPG pressure/temperature sensor
Repair if necessary.
Replace the sensor if the LPG pressure is not greater than 2.5 bar in relation to the manifold pressure
PR001 Manifold pressure.
Check the pressure value using parameters PR001 Manifold pressure, PR003 Pressure difference:
LPG/manifold and PR112 LPG pressure downstream of expansion valve and ensure that
PR003 = PR112 - PR001.
If the fault is still present, contact the Techline.
AFTER REPAIRDeal with any faults displayed by the diagnostic tool.
Clear the computer memory.
Carry out a road test followed by another check with the diagnostic tool.
GAZ3000_V08_DF083 / GAZ3000_V10_DF083

17C-42
MR-372-J84-17C000$354.mif
V2
GAS INJECTION
Fault finding - Interpretation of faults
LPG 3000
Program No: AB
Vdiag No: 08/10
17C
DF087
CONTINUED
With the ignition on,
–check for + 12V on track 1 of injector 4,
–check for earth on track 2 of injector 4 when command AC018 Cylinder 4 injector is run.
Repair if necessary.
If the fault is still present, contact the Techline.
AFTER REPAIRDeal with any faults displayed by the diagnostic tool.
Clear the computer memory.
Carry out a road test followed by another check with the diagnostic tool.

17C-44
MR-372-J84-17C000$354.mif
V2
GAS INJECTION
Fault finding - Interpretation of faults
LPG 3000
Program No: AB
Vdiag No: 08/10
17C
DF088
CONTINUED
With the ignition on,
–check for + 12V on track 1 of injector 3,
–check for earth on track 2 of injector 3 when command AC019 Cylinder 3 injector is run.
Repair if necessary.
If the fault is still present, contact the Techline.
AFTER REPAIRDeal with any faults displayed by the diagnostic tool.
Clear the computer memory.
Carry out a road test followed by another check with the diagnostic tool.

17C-50
MR-372-J84-17C000$413.mif
V2
GAS INJECTION
Fault finding - Interpretation of faults
LPG 3000
Program No: AB
Vdiag No: 08/10
17C
DF098
CONTINUED
With the ignition on,
–check for +12 V on track 1 of injector 1,
–check for earth on track 2 of injector 1 when command AC021 Cylinder 1 injector is executed.
Repair if necessary.
If the fault is still present, contact the Techline.
AFTER REPAIRDeal with any faults displayed by the diagnostic tool.
Clear the computer memory.
Carry out a road test followed by another check with the diagnostic tool.

17C-54
MR-372-J84-17C000$472.mif
V2
17C
GAS INJECTION
Fault finding - Conformity check
MAIN SCREEN
NOTESOnly perform this conformity check after a complete check with the diagnostic tool.
The values indicated in this conformity check are given as examples.
Application conditions: Engine stopped, ignition on and LPG mode selected.
Order FunctionParameter or Status
checked or ActionDisplay and notes Fault finding
1Main relay ET049:General relayINACTIVEIn the event of a fault,
apply the interpretation
of DF007 Main relay circuit.
2
Petrol/LPG
mode
consistencyET021:Mode selectedLPG NONE
3ET094:Petrol modeNORMALCheck the consistency
between statuses
ET094 Petrol mode
and ET093 LPG mode.
If there is inconsistency,
contact the Techline. 4PR093:LPG modeNO
5
Engine speedPR006:Engine speedPR006 = 0 mph
(0 km/h)In the event of a fault, carry out
a full fault finding procedure on
the petrol injection system.
Deal with any other faults.
6PR012:Engine speed
multiplex signalPR012 = 0 mph
(0 km/h)In the event of a fault,
apply the interpretation
of DF074 TDC signal circuit.
7LPG switch ET105:LPG switchPRESSED
RELEASEDIn the event of a fault, apply
the interpretation
of DF020 Fuel sender
switching relay circuit.
8Sensor voltage PR114:Sensor feed
voltage4.9 V < PR114 < 5 VIn the event of a fault, apply
the interpretation of DF096
Sensor supply voltage.
GAZ3000_V08_CCONF / GAZ3000_V10_CCONF
LPG 3000
Program No.
Vdiag No: 08/10
MR-372-J84-17C000$472.mif