2008 RENAULT SCENIC check engine

17C-19
MR-372-J84-17C000$354.mif
V2
GAS INJECTION
Fault finding - Interpretation of faults
LPG 3000
Program No: AB
Vdiag No: 08/10
17C
DF013
CONTINUED
Check for earth on track E (for Mégane 2) or on track B (for Logan) of the LPG tank solenoid valve.
Repair if necessary.
With the engine running, check that the LPG tank solenoid valve relay clicks when LPG mode is selected.
If the fault is still present, check the insulation in relation to +12 V and the continuity and absence
of interference resistance on the following connections:
LPG computer track E4 track 2 of the LPG tank solenoid valve relay
Repair if necessary.
With the ignition on, check for + 12 volts on track C2 of the LPG computer.
Check the insulation in relation to + 12V and the continuity and absence of interference resistance on
the connection between:
LPG computer track C2 track 1 of the LPG tank solenoid valve relay
Repair if necessary.
With the ignition on, check that the relay and the fuel pump are supplied with + 12V.
Check the insulation in relation to + 12V and the continuity and absence of interference resistance on
the connection between:
For Mégane 2:
Fuel pump relay track 2
For Logan:
Fuel pump relay track B5track 3 of the LPG tank solenoid valve relay
track 3 of the LPG tank solenoid valve relay
Repair if necessary.
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.

17C-20
MR-372-J84-17C000$354.mif
V2
GAS INJECTION
Fault finding - Interpretation of faults
LPG 3000
Program No: AB
Vdiag No: 08/10
17C
DF014
PRESENT
OR
STOREDGAUGE SUPPLY CIRCUIT
CC.0: Open circuit or short circuit to earth
CC.1: Short circuit to + 12 volts
NOTESSpecial note:
The system changes to forced petrol mode "LPG system fault" and refuses to change
to LPG mode while the fault is present.
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_DF014 / GAZ3000_V10_DF014

17C-21
MR-372-J84-17C000$354.mif
V2
GAS INJECTION
Fault finding - Interpretation of faults
LPG 3000
Program No: AB
Vdiag No: 08/10
17C
DF016
PRESENT
IMPACT DETECTED
1.DEF: Impact detected
2.DEF: Non-compliance with emission control standards
NOTESPriority when dealing with a number of faults:
If faults DF021 LPG tank solenoid valve relay circuit or fault DF018 + After ignition
feed supply are present or stored, deal with these faults first.
Special note:
As soon as the LPG computer receives this signal, engine operation is prohibited.
If the vehicle has been involved in an accident:
Carry out any necessary repairs,
–clear the fault,
–switch off the ignition,
–wait for the engine immobiliser indicator light to flash,
–switch on the ignition,
If the fault does not recur, end the fault finding procedure.
If the fault recurs, carry out fault finding on the AIRBAG computer.
If the vehicle has not been involved in an accident:
Check for + 12V on track 3 of the fuel pump cut-off relay and the LPG tank relay.
Repair if necessary.
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_DF016P / GAZ3000_V10_DF016

17C-22
MR-372-J84-17C000$354.mif
V2
GAS INJECTION
Fault finding - Interpretation of faults
LPG 3000
Program No: AB
Vdiag No: 08/10
17C
DF017
PRESENT
OR
STOREDLPG LEAK DETECTION DOWNSTREAM OF THE EXPANSION
VALVE
1.DEF: Leak detection
2.DEF: Non-compliance with emission control standards
IMPORTANT
When carrying out an operation on an LPG supply circuit component, consult the safety instructions
(see 17D, Gas injection, Introduction, Safety instructions for all operations).
NOTESFault finding procedure application conditions:
–clear the faults,
–start the engine,
–select LPG mode,
–wait for the engine to operate in LPG mode with the status ET093 LPG mode
set to YES,
–turn the engine off,
–wait for 5 minutes,
–confirm that the fault is present.
Special note:
To detect the leak, use the product distributed by SODICAM, available under Part
number 77 11 143 071 (leak detector).
Start the engine and select LPG mode. Wait for the engine to operate in LPG mode with the status ET093 LPG
Mode set to YES and apply the leak detector product to:
–the expansion valve,
–the pipe between the expansion valve and the injector rail,
–the pipes between the injector rail and the injectors,
–the injector bodies.
Repair if necessary.
With the ignition on and the engine off, control the expansion valve solenoid valve using command
AC024 Expansion valve solenoid valve.
Without disconnecting the pipes, carefully remove:
–the LPG injector rail,
–the LPG injectors.
Apply the leak detector product to the injector seats.
Replace the faulty injector(s) (see MR 364 Mechanical, 17D, Gas injection, Injectors).
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_DF017 / GAZ3000_V10_DF017

17C-25
MR-372-J84-17C000$354.mif
V2
GAS INJECTION
Fault finding - Interpretation of faults
LPG 3000
Program No: AB
Vdiag No: 08/10
17C
DF020
PRESENT
OR
STOREDFUEL SENDER SWITCHING RELAY CIRCUIT
CC.1: Short circuit to + 12 Volts
CO.0: Open circuit or short circuit to earth
2.DEF: Non-compliance with emission control standards
NOTESConditions for applying the fault finding procedure to stored faults:
The fault is declared present after the engine is started and switched to LPG mode
or when command AC005 Fuel sender relay is executed.
Manipulate the wiring harness between the LPG computer and the fuel sender relay in order to produce a change
in status (present ↔ stored).
Look for possible damage to the wiring harness and check the connection and condition of the fuel sender relay
and its connections.
Repair if necessary.
Check the continuity and insulation of the following connection:
Fuel sender relay track 5 track E3, LPG computer
Replace the fuse if necessary.
With the ignition on, check for +12V on track C1 of the LPG computer.
Check the insulation in relation to earth and the continuity and the absence of interference resistance on
the connection between:
LPG computer track C1 track B1 of the LPG or petrol selector switch
If the fault is still present, check the intermediate connector (R34 on track 7, for Mégane 2 and R212 on
track B6, for Logan).
Repair if necessary.
Check the insulation in relation to earth and the continuity and the absence of interference resistance on
the connection between:
LPG computer track E4 track 2 of the fuel sender relay
Repair if necessary.
In LPG operation, check for earth on track 2 of the fuel sender relay.
If, with the ignition on, the computer does not control the fuel sender relay on track 2 via an earth, contact
the Techline.
If the fault is still present, replace the fuel sender 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_DF020 / GAZ3000_V10_DF020

17C-26
MR-372-J84-17C000$354.mif
V2
GAS INJECTION
Fault finding - Interpretation of faults
LPG 3000
Program No: AB
Vdiag No: 08/10
17C
DF021
PRESENT
OR
STOREDLPG TANK SOLENOID VALVE RELAY CIRCUIT
CC.1: Short circuit to + 12 Volts
CO.0: Open circuit or short circuit to earth
1.DEF: Non-compliance with emission control standards
NOTESPriority when dealing with a number of faults:
If fault DF024 Fuel pump cut-off 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 started and switched to LPG
mode.
Manipulate the wiring harness between the LPG computer and the LPG tank solenoid valve relay in order to
produce a change in status (present ↔ stored).
Look for possible damage to the wiring harness and check the condition and connection of the LPG tank
solenoid valve relay and its connections.
If necessary, repair or replace the connector.
With the ignition on, check for + 12V on track 1 of the LPG tank solenoid valve relay and track C2 of the LPG
computer.
If no + 12 V:
–disconnect the battery,
–in the Protection and Switching Unit, disconnect the grey connector,
–check the cleanliness and condition of the connections,
–Use the universal bornier to check the continuity of the following connection:
For Mégane 2:
Protection and Switching Unit, grey connector, track 1
For Logan:
Fuse box, track S4track 3 of the main relay
track A5 of the main relay
Repair if necessary.
Check for + 12V on track 3 of the LPG tank solenoid valve relay.
If + 12V is not present, use the universal bornier to check the continuity of the following connection:
For Mégane 2:
Tank solenoid valve relay track 3
For Logan:
Double control relay unit track B3track 5 of the fuel pump relay
track B5 of the fuel pump relay
Repair if necessary.
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_DF021 / GAZ3000_V10_DF021

17C-27
MR-372-J84-17C000$354.mif
V2
GAS INJECTION
Fault finding - Interpretation of faults
LPG 3000
Program No: AB
Vdiag No: 08/10
17C
DF021
CONTINUED
Check the insulation in relation to + 12V and the continuity and absence of interference resistance on
the connection between:
For Mégane 2:
LPG computer track E4
For Logan:
LPG computer track E4track 2 of the gas tank solenoid valve relay
track B2 of the double control relay unit
Repair if necessary.
With the ignition on, check for earth on track 2 of the LPG tank solenoid valve relay.
If, with the ignition on, the computer does not control the LPG tank solenoid valve relay on track 2 through an
earth, contact the Techline.
With the engine running, check that the relay clicks when LPG mode is selected.
If the fault is still present, replace the LPG tank solenoid valve 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.

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