PETROL INJECTION
Fault finding - Interpretation of faults
17B
17B-86
PETROL INJECTION
Fault finding - Interpretation of faults
17B
17B-86V9 MR-372-J84-17B050$376.mif
S3000 Injection
Program No.: AD
Vdiag No.: 4C / 54
DF138
PRESENT
OR
STOREDCLUTCH PEDAL CIRCUIT
1.DEF: Component in bad condition
NOTESConditions for applying the fault finding procedure to stored faults:
The fault is present with the engine running and following a check on the number of
times the clutch pedal is depressed in relation to the number of gear changes
calculated by the computer.
Special note:
– engine speed surges when changing gear,
– the acquisition is made if the vehicle is not fitted with an automatic transmission,
– in the event of a fault, before replacing any component, check using the diagnostic
tool that the clutch contact is operational and that the recommended clutch pedal
clearance is still valid.
– In the event of an open circuit or short circuit to + 12 V, the clutch pedal is
depressed all the time which makes it impossible to select a cruising speed in cruise
control mode. The speed limiter remains operational in defect mode (inaccurate
speed restriction),
–If short circuit to earth, status ET405 Clutch pedal switch remains INACTIVE.
Check the cleanliness, condition and fitting of the clutch pedal switch.
Repair if necessary.
If the fault is still present, disconnect the switch. Check that when the clutch pedal is depressed, the switch is
closed, and when the clutch pedal is released, the switch is open.
Replace the switch if necessary.
If the fault is still present, manipulate the harness to see if the status changes.
Look for any damage to the wiring harness, and check the condition and connection of the connectors of the
injection computer and clutch pedal switch.
Repair if necessary.
If the fault is still present, check the earth on track 2 of the switch.
If the earth is not present on track 2, check for insulation, continuity and the absence of interference
resistance on the following connection:
earth track 1 Clutch pedal switch
Repair if necessary.
AFTER REPAIRFollow the instructions to confirm repair.
Deal with any other faults.
Clear the stored faults.
S3000_V4C_DF138/S3000_V54_DF138
PETROL INJECTION
Fault finding - Interpretation of faults
17B
17B-87
PETROL INJECTION
Fault finding - Interpretation of faults
17B
17B-87V9 MR-372-J84-17B050$376.mif
S3000 Injection
Program No.: AD
Vdiag No.: 4C / 54
DF138
CONTINUED
If the fault is still present, check for insulation, continuity and the absence of interference resistance between
the following connection:
Injection computer, connectorA, track C4 track 2 Clutch pedal switch
Repair if necessary.
If the fault is still present, deal with the other faults then proceed to the conformity check.
AFTER REPAIRFollow the instructions to confirm repair.
Deal with any other faults.
Clear the stored faults.
PETROL INJECTION
Fault finding - Interpretation of faults
17B
17B-92
PETROL INJECTION
Fault finding - Interpretation of faults
17B
17B-92V9 MR-372-J84-17B050$376.mif
S3000 Injection
Program No.: AD
Vdiag No.: 4C / 54
DF228
PRESENT
OR
STOREDBRAKE SIGNALS
1.DEF: Component in bad condition
2.DEF: Non-compliance with emission control standards
NOTESSpecial note:
– cruise control and speed limiter deactivated.
Check:
– the consistency of statuses ET704 Brake switch no. 1 and ET705 Brake switch no. 2 changes to ACTIVE/
INACTIVE,
–the condition and cleanliness of the brake lights switch.
Disconnect the battery and the injection computer, check the condition and cleanliness of the connections.
Check the insulation and continuity of the following connection:
Injection computer, connectorA, track E4 track 3 of the brake light switch
Repair if necessary.
Run a multiplex network test (see88B, Multiplexing).
If the fault is still present, carry out fault finding on the ABS - ESP system (see38C, Anti-lock braking system).
AFTER REPAIRFollow the instructions to confirm repair.
Deal with any other faults.
Clear the stored faults.
S3000_V4C_DF228/S3000_V54_DF228
PETROL INJECTION
Fault finding - Interpretation of faults
17B
17B-100
PETROL INJECTION
Fault finding - Interpretation of faults
17B
17B-100V9 MR-372-J84-17B050$423.mif
S3000 Injection
Program No.: AD
Vdiag No.: 4C / 54
DF398
PRESENT
OR
STOREDFUEL CIRCUIT OPERATING FAULT
1.DEF: Non-compliance with emission control standards
2.DEF: Component in bad condition
NOTESPriority when dealing with a number of faults:
If faults DF085 Fuel pump relay control circuit, DF549 Canister bleed circuit and
injector faults
DF026 Cylinder 1 injector control circuit,
DF027 Cylinder 2 injector control circuit;
DF028 Cylinder 3 injector control circuit,
DF029 Injector control circuit cylinder 4, are present or stored, deal with these first.
Special note:
–the OBD warning light is lit,
– a fuel supply system fault can lead to starting difficulties, and loss of comfort and
power.
Check the cleanliness, condition and fitting of the fuel vapour absorber.
Check the connections and correct operation of the petrol pump.
Check the cleanliness, condition and fitting of the injectors and their sealing.
Repair if necessary.
Check:
– that the fuel is present and correct,
– the tank vent,
– that there are no leaks on the petrol circuit (from the tank to the injectors),
– that there are no kinked hoses (especially after dismantling),
– the fuel flow rate and pressure.
Repair the faulty component(s) if necessary (see MR 364 or 370 Mechanics, 13A, Fuel supply).
If the fault is still present, deal with the other faults then proceed to the conformity check.
AFTER REPAIRFollow the instructions to confirm repair.
Deal with any other faults.
Clear the stored faults.
S3000_V4C_DF398/S3000_V54_DF398
PETROL INJECTION
Fault finding - Interpretation of faults
17B
17B-107
PETROL INJECTION
Fault finding - Interpretation of faults
17B
17B-107V9 MR-372-J84-17B050$423.mif
S3000 Injection
Program No.: AD
Vdiag No.: 4C / 54
DF570
PRESENT
OR
STOREDCOOLANT PUMP RELAY
CO: Open circuit
CC.0: Short circuit to earth
CC.1: Short-circuit to + 12 V
NOTESConditions for applying the fault finding procedure to stored faults:
The fault is declared present when the engine is running or on command AC195
Electric coolant pump.
Check the cleanliness, condition and fitting of the coolant pump.
Top up the coolant if necessary.
If the fault is still present, manipulate the harness to see if the status changes.
Look for any harness damage, and check the condition and connection points of the injection computer and the
coolant pump connectors.
Repair if necessary.
If the fault is still present, check for +12V on track 2 of the coolant pump.
If +12V is not present on track 2 of the coolant pump, check the following connection for insulation, continuity
and the absence of interference resistance:
Coolant pump track 2 track 6, connector CN, of the Protection and
Switching Unit
Repair if necessary.
If the fault is still present, check the insulation, continuity and the absence of interference resistance on the
following connection:
Computer, connectorB, track L4 track 1 of the coolant pump
Repair if necessary.
If the fault is still present, check that the resistance between tracks 1 and 2 of the coolant pump is neither zero
nor infinite.
Replace the coolant pump if necessary.
If the fault is still present, deal with the other faults then proceed to the conformity check.
AFTER REPAIRFollow the instructions to confirm repair.
Deal with any other faults.
Clear the stored faults.
S3000_V4C_DF570/S3000_V54_DF570
PETROL INJECTION
Fault finding - Conformity check
17B
17B-120
PETROL INJECTION
Fault finding - Conformity check
17B
17B-120V9 MR-372-J84-17B050$470.mif
S3000 Injection
Program No.: AD
Vdiag No.: 4C / 54PETROL INJECTION
Fault finding - Conformity check
MAIN COMPUTER STATUSES AND PARAMETERS
NOTESOnly check the conformity after a complete check with the diagnostic tool. The values
shown in this conformity check are given as a guide.
Application conditions: engine stopped, ignition on.
Order FunctionParameter or Status Checked
or ActionDisplay and notes Fault finding
1
Battery voltageET001:Computer + after
ignition feedPresentIn the event of a fault,
apply the
interpretation of
DF046 Battery
voltage. 2 PR074:Battery voltage11 V < PR074 < 15 V
3 Vehicle speed PR089:Vehicle speedGives the vehicle
speed in mph (km/h).
This parameter is
sent to the injection
by the ABS computer
via the multiplex
network.
PR089= 0mphIn the event of a fault
apply the
interpretation for
DF091 Vehicle speed
signal.
4
FaultsET064:Level 1 injection faultYES
NO
WITHOUT 5ET065:Level 2 Injection faultYES
NO
6 PR105:OBD fault warning
light lit mileage
counterIndicates the mileage
covered with the
OBD warning light lit.
7 PR106:Mileage counter fault
warning light litShows the distance
covered with the
warning light lit.
S3000_V4C_CCONF/S3000_V54_CCONF
MR-372-J84-17B050$470.mif
PETROL INJECTION
Fault finding - Conformity check
17B
17B-137
PETROL INJECTION
Fault finding - Conformity check
17B
17B-137V9 MR-372-J84-17B050$470.mif
S3000 Injection
Program No.: AD
Vdiag No.: 4C / 54
SUB-FUNCTION: COLD LOOP (continued 1):
NOTESOnly check the conformity after a complete check with the diagnostic tool. The values
shown in this conformity check are given as a guide.
Application conditions: Engine off, ignition on.
Order FunctionParameter or Status
Checked or ActionDisplay and notes Fault finding
4 Idle speed ET023:Fast idle speed
requestUCH requests the
injection system to
increase the idling
speed.
INACTIVE: The UCH
has not formulated a
request.
ACTIVE: The UCH has
formulated a requestIf ET023 is
inconsistent, run a
multiplex network
test using the
diagnostic tool; then
if the test is in order,
consult the UCH.
5 Engine speed PR055:Engine speedShows the speed of
rotation in rpm.
PR055= 0rpmIn the event of a fault,
apply the
interpretation for
DF154 Flywheel
signal sensor
circuit.
6
Air conditioningPR037:Refrigerant
pressure2Bar
Default value: 0 Bar.If 1.DEF, apply
interpretation of
PR037 Coolant
pressure.
7 ET674:Refrigerant
pressure statusCORRECT
TOO LOW
8PR125:Power used by the
AC compressorPR125 = 300 W WITHOUT
9Coolant
temperaturePR064:Coolant
temperature- 40°C < PR064
< 120°C
Default value: - 39°CIn the event of a fault,
apply the
interpretation of
DF001 Coolant
temperature sensor
circuit.
10 Vehicle speed PR089:Vehicle speedGives the vehicle
speed in mph (km/h).
This parameter is
sent to the injection
by the ABS computer
via the multiplex
network.In the event of a fault,
apply the
interpretation of
DF091 Vehicle speed
signal.
PETROL INJECTION
Fault finding - Conformity check
17B
17B-141
PETROL INJECTION
Fault finding - Conformity check
17B
17B-141V9 MR-372-J84-17B050$470.mif
S3000 Injection
Program No.: AD
Vdiag No.: 4C / 54
CRUISE CONTROL/SPEED LIMITER SUB-FUNCTION (continued):
NOTESOnly check the conformity after a complete check with the diagnostic tool. The values
shown in this conformity check are given as a guide.
Application conditions: Engine off, ignition on.
Order FunctionParameter or Status Checked
or ActionDisplay and notes Fault finding
4 Vehicle speed PR089:Vehicle speedGives the vehicle
speed in mph (km/h).
This parameter is
sent to the injection
by the ABS computer
via the multiplex
network.In the event of a fault,
apply the
interpretation of
DF091 Vehicle
signal.
5Brake pedal
switchET704:Brake switch no. 1
ACTIVE
INACTIVEIn the event of a fault,
apply the
interpretation of
statuses ET704
Brake switch no. 1
and ET705 Brake
switch no. 2. ET705:Brake switch no. 2
6Clutch pedal
switchET405:Clutch pedal switchINACTIVE: Clutch
pedal released.
ACTIVE: Clutch pedal
depressed.
If the vehicle is
fitted with an automatic
gearbox,
status ET405 must be
ACTIVEIn the event of a fault,
apply the
interpretation of
ET405 Clutch pedal
switch.