RENAULT SCENIC 2008 J84 / 2.G Gas Injection LPG 3000 Owners Manual

17C-91
MR-372-J84-17C000$826.mif
V2
GAS INJECTION
Fault finding - Interpretation of commands
LPG 3000
Program No.
Vdiag No: 08/10
17C
AC015
TANK SOLENOID VALVE
NOTESWith ignition on and engine stopped.
Switch on the ignition and run command AC015.
If the tank solenoid valve does not click ten times, carry out the fault finding procedure below.
Look for possible damage to the harness, and check the condition and connection of the LPG tank solenoid
valve and its connectors.
Repair if necessary.
Check the connection and condition of the LPG solenoid valve connector and its connections.
Replace the connector if necessary.
Check for +12 V on track 1 of the LPG tank relay and track C2 of the LPG computer.
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.
–Check that the solenoid valve is supplied with +12 V by track E4 of the LPG computer.
If necessary, check the insulation, continuity and the absence of interference resistance on the connection
between:
For Mégane 2:
LPG computer track E4
For Logan:
LPG computer track E4track 2 of the LPG tank relay
track B2 of the double relay control unit
Repair if necessary.
AFTER REPAIRRepeat the conformity check from the start.
GAZ3000_V08_AC015 / GAZ3000_V10_AC015

17C-92
MR-372-J84-17C000$826.mif
V2
GAS INJECTION
Fault finding - Interpretation of commands
LPG 3000
Program No.
Vdiag No: 08/10
17C
AC015
CONTINUED
–Check for +12 V on track 5 of the LPG tank relay.
If necessary, check the following connections for insulation from earth, continuity and absence of extraneous
resistance:
For Mégane 2:
LPG computer track E3
LPG tank solenoid valve track D
For Logan:
LPG computer track E3
LPG tank solenoid valve track 1track 5 of the LPG tank relay
track B5 of the double relay control unit
Repair if necessary.
Check for earth on track E (for Mégane 2) or on track 2 (for Logan) of the LPG tank solenoid valve.
Repair if necessary.
With the engine running, check that the LPG tank solenoid valve clicks when the LPG mode is selected.
If the fault is still present, replace the LPG tank solenoid valve (see MR 364 Mechanics, 17D, LPG
injection).
AFTER REPAIRRepeat the conformity check from the start.

17C-93
MR-372-J84-17C000$826.mif
V2
GAS INJECTION
Fault finding - Interpretation of commands
LPG 3000
Program No.
Vdiag No: 08/10
17C
AC018
CYLINDER INJECTOR NO. 4
NOTESWith ignition on and engine stopped.
Switch on the ignition and run command AC018.
If the injector does not vibrate 10 times, perform the fault finding procedure for DF087 Cylinder 4 injector circuit.
AFTER REPAIRRepeat the conformity check from the start.
GAZ3000_V08_AC018 / GAZ3000_V10_AC018

17C-94
MR-372-J84-17C000$826.mif
V2
GAS INJECTION
Fault finding - Interpretation of commands
LPG 3000
Program No.
Vdiag No: 08/10
17C
AC019
CYLINDER INJECTOR NO. 3
NOTESWith ignition on and engine stopped.
Switch on the ignition and run command AC019.
If the injector does not vibrate 10 times, perform the fault finding procedure for DF088 Cylinder 3 injector circuit.
AFTER REPAIRRepeat the conformity check from the start.
GAZ3000_V08_AC019 / GAZ3000_V10_AC019

17C-95
MR-372-J84-17C000$826.mif
V2
GAS INJECTION
Fault finding - Interpretation of commands
LPG 3000
Program No.
Vdiag No: 08/10
17C
AC020
CYLINDER 2 INJECTOR
NOTESWith ignition on and engine stopped.
Switch on the ignition and run command AC020.
If the injector does not vibrate 10 times, perform the fault finding procedure for DF081 Cylinder 2 injector circuit.
AFTER REPAIRRepeat the conformity check from the start.
GAZ3000_V08_AC020 / GAZ3000_V10_AC020

17C-96
MR-372-J84-17C000$826.mif
V2
GAS INJECTION
Fault finding - Interpretation of commands
LPG 3000
Program No.
Vdiag No: 08/10
17C
AC021
CYLINDER INJECTOR NO. 1
NOTESWith ignition on and engine stopped.
Switch on the ignition and run command AC021.
If the injector does not vibrate 10 times, perform the fault finding procedure for DF098 Cylinder 1 injector circuit.
AFTER REPAIRRepeat the conformity check from the start.
GAZ3000_V08_AC021 / GAZ3000_V10_AC021

17C-97
MR-372-J84-17C000$826.mif
V2
GAS INJECTION
Fault finding - Interpretation of commands
LPG 3000
Program No.
Vdiag No: 08/10
17C
AC024
LPG EXPANSION VALVE SOLENOID VALVE
NOTESWith ignition on and engine stopped.
Switch on the ignition and run command AC024.
If the LPG expansion valve solenoid valve does not click 10 times, follow the interpretation of fault DF103 LPG
expansion valve solenoid valve circuit.
AFTER REPAIRRepeat the conformity check from the start.
GAZ3000_V08_AC024 / GAZ3000_V10_AC024

17C-98
MR-372-J84-17C000$885.mif
V2
17C
GAS INJECTION
Fault finding - Customer complaints
NOTESOnly check the customer complaint after performing a complete check with the fault
finding tool.
IMPORTANT
For any operation on a component of the LPG supply circuit, consult the safety
instructions (see 17D, LPG injection, Introduction).
NO DIALOGUE WITH THE COMPUTER ALP 1
LPG GAUGE FAULTSALP 2
THE ENGINE STALLS WHEN SWITCHED TO LPG MODE ALP 3
IDLE SPEED FAULTSALP 4
FAULTS WHILE DRIVINGALP 5
LPG LEAK
LPG LEAK WHEN REFILLING
THE TANKALP 6
LPG 3000
Program No.
Vdiag No: 08/10
MR-372-J84-17C000$885.mif

17C-99
MR-372-J84-17C000$944.mif
V2
17C
GAS INJECTION
Fault finding - Fault finding chart (ALP)
ALP 1 No dialogue with the computer
NOTESNone.
Check for a + 12 V battery feed on track H4 and a + 12 V after ignition feed (using the forced + after ignition
mode, see Introduction section) on track C2 of the LPG computer.
Repair if necessary.
Check the condition of the battery and the vehicle earths.
Repair if necessary.
Try the diagnostic tool on another vehicle.
–check the connection between the diagnostic tool and the diagnostic socket (lead in good condition),
–check fuse F5 (15 A) (for Mégane 2) and fuses F04 (10A) and F29 (15A) (for Logan).
Repair if necessary.
Check the insulation, continuity and the absence of interference resistance on the connections between:
LPG computer track H1
LPG computer track G1
LPG computer track B4Earth
Earth
track 7 of the diagnostic socket
Repair if necessary.
Use the diagnostic socket to check the following tracks:
Track 1
Track 16
Tracks 4 and 5+ After ignition
+ Battery
Earth
Repair if necessary.
AFTER REPAIRCheck using the diagnostic tool.
GAZ3000_V08_ALP1 / GAZ3000_V10_ALP1
LPG 3000
Program No: AB
Vdiag No: 08/10
MR-372-J84-17C000$944.mif

17C-100
MR-372-J84-17C000$944.mif
V2
GAS INJECTION
Fault finding - Fault finding chart (ALP)
LPG 3000
Program No: AB
Vdiag No: 08/10
17C
ALP 2 LPG sender fault
For Mégane II
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).
NOTESCheck that there is LPG in the tank.
Disconnect the LPG tank sender connector and check the voltage of the sensor signal using parameter
PR007 LPG tank sender signal voltage.
Replace the sensor if the signal voltage is not approximately:4.8 V tank full
1 V in reserve
0.2 V tank empty
Check for earth on track C (for Mégane 2) of the LPG tank connector.
Repair if necessary.
Check the insulation in relation to earth and the continuity and the absence of interference resistance on
the connection between:
For Mégane 2:
LPG computer track B1 track B of the LPG tank sender
If the fault is still present, check the intermediate connectors (R2 track 36 and R34 track 34 for Mégane 2).
Repair if necessary.
If the fault is still present, check the LPG tank pressure sensor (see MR 364 Mechanical, 17D, LPG injection).
AFTER REPAIRCheck using the diagnostic tool.
GAZ3000_V08_ALP2 / GAZ3000_V10_ALP2