Page 166 of 279
17B-166V2 MR-376-X76-17B050$110.mif
PETROL INJECTION
Fault finding – Interpretation of statuses17B
V42 Injection
Program No.: 2A
Vdiag No.: 04, 05, 06,
14, 16, 18
AFTER REPAIRDeal with any faults. Clear the faults from the computer memory.
Switch off the ignition and carry out a road test followed by a test with the diagnostic
tool.
ET047FUEL PUMP CONTROL CIRCUIT
STATUS DEFINITIONACTIVE: This status indicates that the fuel pump is active.
INACTIVE: This status indicates that the fuel pump is inactive.
Conformity check: Engine stopped, ignition on or engine running.
ACTIVEStatus ET047 is ACTIVE when starting the engine. In the event of a fault apply the
interpretation of DF085 Fuel pump relay circuit.
INACTIVEStatus ET047 is INACTIVE when the engine is stopped and the ignition off.
V42_V04_ET047/V42_V05_ET047/V42_V06_ET047/V42_V14_ET047/V42_V16_ET047/V42_V18_ET047
Page 198 of 279

17B-198
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
V2 MR-376-X76-17B050$130.mif
PETROL INJECTION
Fault finding – Interpretation of parameters17B
V42 Injection
Program No.: 2A
Vdiag No.: 04, 05, 06,
14, 16, 18
PR139RICHNESS ADAPTIVE OPERATION
PA R A M E T E R
DEFINITIONNo faults must be present.
Conformity check with the engine running and engine coolant temperature > 80°C
Check the sealing of the fuel vapour absorber bleed.
Repair if necessary.
With the engine warm in the idle speed regulation phase, look at parameter PR139.
– If the parameter goes to MAXIMUM stop, there is not enough fuel or too much air in the mixture.
– If the parameter goes to MINIMUM stop, there is too much fuel or not enough air in the mixture.
Check the cleanliness and correct operation of:
– petrol filter,
– petrol pump,
– fuel circuit,
–tank,
– air supply pipe,
– air filter,
– plugs.
Repair if necessary.
Check:
– the compressions,
– the valve clearance,
– the ignition.
Repair if necessary.
V42_V04_PR139/V42_V05_PR139/V42_V06_PR139/V42_V14_PR139/V42_V16_PR139/V42_V18_PR139
Page 213 of 279

17B-213V2 MR-376-X76-17B050$140.mif
17B
V42 Injection
Program No.: 2A
Vdiag No.: 04, 05, 06,
14, 16, 18
*TDC: Top Dead Centre
**GMV: fan assemblyTool
commandDiagnostic tool title Comments
RZ001 Fault memoryThis command is used to clear the faults stored in the computer.
RZ003 Engine adaptivesThis command enables a long engine start time.
RZ031 Throttle stop programmingThis command is used to reset the necessary system adaptives
if replacing the throttle valve.
RZ033Richness regulation
programmingThis command is used to reset the necessary system adaptives
if replacing the injectors.
RZ037Flywheel target
programmingThis command is used to reset the necessary system adaptives
if replacing the TDC* sensor.
RZ064Programming the level of
alcoholThis command is used to count the richness adaptive
programming necessary when replacing the injection computer.
AC005 Cylinder 1 injectorThis command is used to perform an audible check on injector 1.
AC006 Cylinder 2 injectorThis command is used to perform an audible check on injector 2.
AC007 Cylinder 3 injectorThis command is used to perform an audible check on injector 3.
AC008 Cylinder 4 injectorThis command is used to perform an audible check on injector 4.
AC015 Fuel pump relayThis command is used to check the fuel pump.
AC017Canister bleed solenoid
valveThis command is used to check the canister bleed solenoid
valve.
AC027 Motorised throttleThis command is used to check the motorised throttle.
AC038 Low speed GMV** relayThis command is used to check the low speed GMV** relay.
AC039 High speed GMV** relayThis command is used to check the high speed GMV** relay.
AC180Air conditioning
compressor relay controlThis command is used to check the air conditioning compressor
relay.
PETROL INJECTION
Fault finding – Command summary table
Page 214 of 279

17B-214V2 MR-376-X76-17B050$140.mif
PETROL INJECTION
Fault finding – Command summary table17B
V42 Injection
Program No.: 2A
Vdiag No.: 04, 05, 06,
14, 16, 18
AC217Additional fuel circuit
solenoid valveThis command is used to check the additional fuel circuit
solenoid valve. Only on Flexfuel injection
AC224Additional fuel circuit pump
relay This command is used to check the relay of the additional circuit
pump. Only on Flexfuel injection
AC250 Heating resistor 1 relayThis command is used to activate the heating resistor no.1 relay.
AC251 Heating resistor 2 relayThis command is used to activate the heating resistor no.2 relay.
AC252 Heating resistor 3 relayThis command is used to activate the heating resistor no.3 relay.
SC001 Write saved dataUse this command after replacing or (re)programming the
computer (if the data has been saved using command SC003).
SC003 Save computer dataThis command enables the computer operating data, the engine
adaptives, to be recorded.
SC006Start OBD test: Catalytic
converterThis command is used to test the catalytic converter.
SC007 Run OBD test: O2 sensorThis command is used to test the O2 sensors.
SC061Oil change interval (OCS)
OxidationThis command is used to perform a test on the oil oxidation (see
Technical Note 6523A, Oil change interval (OCS) fault finding
for petrol and diesel engines)
VP010 Enter VIN.This command is used to enter the VIN.
VP036 Fuel supply inhibitedThis command is used to inhibit fuel supply to the engine.
Page 223 of 279
17B-223
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
V2 MR-376-X76-17B050$160.mif
PETROL INJECTION
Fault finding – Fault Finding Chart17B
V42 Injection
Program No.: 2A
Vdiag No.: 04, 05, 06,
14, 16, 18
ALP 4 Fuel leak
Check the fuel pump relay by running TEST 1 Fuel supply pump relay check.
Check the air pipes.
Check the additional fuel circuit solenoid valve by running TEST 5 Checking the additional fuel tank.
Check the spark plugs.
Check the injector rail.
Check the additional petrol circuit pump by running TEST 12 Additional fuel tank pump check.
If the fault is still present, contact the techline.
V42_V04_ALP4 /V42_V05_ALP4/V42_V06_ALP4/V42_V14_ALP4/V42_V16_ALP4/V42_V18_ALP4
Page 232 of 279

17B-232
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
V2 MR-376-X76-17B050$160.mif
PETROL INJECTION
Fault finding – Fault Finding Chart17B
V42 Injection
Program No.: 2A
Vdiag No.: 04, 05, 06,
14, 16, 18
ALP 13 Excessive fuel consumption
Check the air filter unit.
Check the air pipes.
Check the additional fuel circuit solenoid valve by running TEST 5 Checking the additional fuel tank.
Check the injector rail.
Check the injectors by running TEST 13 Checking the injectors.
Check the additional petrol circuit pump by running TEST 12 Additional fuel tank pump check.
Check the pinking sensor by running TEST 11 Pinking sensor check.
Check the upstream oxygen sensor by running TEST 17 Checking the upstream O2 sensor.
Check the downstream oxygen sensor by running TEST 18 Checking the downstream O2 sensor.
Check the catalytic converter.
Check the camshaft.
If the fault is still present, contact the techline.
V42_V04_ALP13/V42_V05_ALP13/V42_V06_ALP13/V42_V14_ALP13/V42_V16_ALP13/V42_V18_ALP13
Page 235 of 279

17B-235
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
V2 MR-376-X76-17B050$160.mif
PETROL INJECTION
Fault finding – Fault Finding Chart17B
V42 Injection
Program No.: 2A
Vdiag No.: 04, 05, 06,
14, 16, 18
ALP 16 Impossible to start the engine
Check the fuel pump relay by running TEST 1 Petrol supply pump relay check.
Check the air filter unit.
Check the oil.
Check the air pipes.
Check the additional fuel circuit solenoid valve by running TEST 5 Checking the additional fuel tank.
Check the spark plugs.
Check the injector rail.
Check the additional petrol circuit pump by running TEST 12 Additional fuel tank pump check.
Check the TDC sensor by running TEST 10 TDC sensor check.
Check the coolant pump.
Check the cylinder head.
Check the camshaft.
Check the valves.
Check the timing.
Check the rotating parts.
Check the accessories belt.
Check the supply relay and the injection computer.
If the fault is still present, contact the techline.
V42_V04_ALP16/V42_V05_ALP16/V42_V06_ALP16/V42_V14_ALP16/V42_V16_ALP16/V42_V18_ALP16
Page 236 of 279

17B-236
AFTER REPAIRCarry out a road test, then check with the diagnostic tool.
V2 MR-376-X76-17B050$160.mif
PETROL INJECTION
Fault finding – Fault Finding Chart17B
V42 Injection
Program No.: 2A
Vdiag No.: 04, 05, 06,
14, 16, 18
ALP 17 Engine stalls when cold
Check the air filter unit.
Check the oil.
Check the inlet manifold air pressure sensor by running TEST 7 Air inlet pressure sensor check.
Check the air pipes.
Check the additional fuel circuit solenoid valve by running TEST 5 Checking the additional fuel tank.
Check the coolant temperature sensor by running TEST 15 Coolant temperature sensor check.
Check the injector rail.
Check the injectors by running TEST 13 Injector check.
Check the additional petrol circuit pump by running TEST 12 Additional fuel tank pump check.
Check the TDC sensor by running TEST 10 TDC sensor check.
Check the upstream oxygen sensor by running TEST 17 Upstream O2 sensor check.
Check the camshaft.
Check the valves.
Check the timing.
Check the injection computer.
If the fault is still present, contact the techline.
V42_V04_ALP17/V42_V05_ALP17/V42_V06_ALP17/V42_V14_ALP17/V42_V16_ALP17/V42_V18_ALP17