check engine light RENAULT SCENIC 2008 J84 / 2.G Gas Injection LPG 3000 Workshop Manual

17C-2
MR-372-J84-17C000$059.mif
V2
17C
GAS INJECTION
Fault finding - Introduction
1. SCOPE OF THIS DOCUMENT
This document presents the fault finding procedures applicable to all computers with the following specifications:
2. PREREQUISITES FOR FAULT FINDING
Documentation type
Fault finding procedures (this manual):
–Assisted fault finding (integrated into the diagnostic tool), Dialogys.
Wiring Diagrams:
–Visu-Schéma.
Type of diagnostic tools
–CLIP + multiplex line sensor
Special tooling required
3. REMINDERS
Procedure for Mégane 2
To carry out fault finding on the vehicle's computers, switch the ignition to fault finding mode (forced + after ignition).
Proceed as follows:
–Put the vehicle card in the card reader.
–Press and hold Start button (longer than 5 seconds) with start-up conditions not fulfilled.
–connect the diagnostic tool and perform the required operations.
To cut off the + after ignition feed, proceed as follows:
–disconnect the diagnostic tool,
–press the Start button twice briefly (less than 3 seconds),
–ensure that the + after ignition feed has been cut off by checking that the computer indicator lights on the
instrument panel have gone out.
Procedure for Logan
To run fault finding on the vehicle computers, switch on the ignition. Connect the diagnostic tool and perform the
required operations.Vehicle (s): LOGAN and MEGANE 2
Function concerned: Gas Injection
Engines: K4M 764/788/698Computer name: GAS 3000
Program No.: AB
Vdiag No.: 08/10
Special tooling required
Multimeter
Elé. 1681 Universal bornier
Note:
The left-hand and right-hand xenon bulb computers are powered when the dipped headlights are lit.
Fault finding on these computers is therefore not possible until after the ignition has been switched on in
diagnostic mode (forced + after ignition) and the dipped beam headlights have been switched on.
GAZ3000_V08_PRELI / GAZ3000_V10_PRELI
LPG 3000
Program No: AB
Vdiag No: 08/10
MR-372-J84-17C000$059.mif

17C-13
MR-372-J84-17C000$177.mif
V2
17C
GAS INJECTION
Fault finding - Replacement of components
COMPUTER REPLACEMENT OR REPROGRAMMING PROCEDURE
The system can be programmed and reprogrammed via the diagnostic socket using the RENAULT CLIP diagnostic
tool (see Technical Note 3585A or follow the instructions provided by the diagnostic tool).
After reprogramming or replacing the computer:
–Switch the ignition off and then on again.
–Start and run the engine in LPG mode then stop the engine (to initialise the computer) and wait for
30 seconds.
–Switch on the ignition and use the diagnostic tool to carry out the following steps:
–use command VP001 Write VIN,
–after the injection has been reprogrammed, stored faults may appear on other computers. Clear the memories of
these computers,
–carry out a road test followed by another check with the diagnostic tool. IMPORTANT
–switch on the diagnostic tool (mains or cigarette lighter supply),
–connect a battery charger,
–shut down all the electrical consumers (lights, interior lights, air conditioning, radio CD, etc.),
–wait for the engine to cool down (coolant temperature below 60 °C and air temperature below 50 °C).
LPG 3000
Program No: AB
Vdiag No: 08/10
MR-372-J84-17C000$177.mif

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-51
MR-372-J84-17C000$413.mif
V2
GAS INJECTION
Fault finding - Interpretation of faults
LPG 3000
Program No: AB
Vdiag No: 08/10
17C
DF099
PRESENT
OR
STOREDINSTRUMENT PANEL INDICATOR LIGHT CIRCUIT
CO.0 : Open circuit or short circuit to earth
CC.1 : Short circuit to + 12 V
1.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 has been started and switched to LPG
mode.
Special note:
Status ET099 LPG system faulty may help in dealing with this fault.
Check the insulation and continuity on the wires of the following multiplex connections:
For Mégane 2:
LPG computer track A1
LPG computer track A2
LPG computer track A2
For Logan:
LPG computer track C1
LPG computer track E1
LPG computer track D4track 17 of the instrument panel
track 18 of the instrument panel
track 4 of the instrument panel
track 23 of the instrument panel
track 11 of the instrument panel
track 19 of the instrument panel
Repair if necessary.
If the LPG in operation indicator light does not light up normally, carry out fault finding on the instrument
panel (see 83A, Instrument panel).
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_DF099 / GAZ3000_V10_DF099