Page 209 of 279
17B-209V2 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
AFTER REPAIRDeal with any faults displayed by the diagnostic tool.
Clear the computer memory.
Carry out a road test, then check with the diagnostic tool.
PR448IGNITION ADVANCE
PA R A M E T E R
DEFINITIONThis parameter indicates the ignition advance in volts.
Conformity check with engine stopped and ignition on, or engine running, and engine coolant temperature > 80°C
The value must be 0° V with the ignition on and 4 V at idle speed.
In the event of a fault, apply the interpretation of fault DF120 Engine speed sensor signal.
V42_V04_PR448/V42_V05_PR448/V42_V06_PR448/V42_V14_PR448/V42_V16_PR448/V42_V18_PR448
Page 210 of 279
17B-210V2 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
AFTER REPAIRDeal with any faults displayed by the diagnostic tool.
Clear the computer memory.
Carry out a road test, then check with the diagnostic tool.
PR538MEASURED THROTTLE VOLTAGE, GANG 2
PA R A M E T E R
DEFINITIONThis parameter indicates the throttle valve gang 2 voltage measured in volts.
Conformity check with engine stopped and ignition on, or engine running, and engine coolant temperature
>80°C
The value must be 0.60 V.
In the event of a fault, apply the interpretation of fault DF096 Throttle potentiometer circuit gang 2.
V42_V04_PR538/V42_V05_PR538/V42_V06_PR538/V42_V14_PR538/V42_V16_PR538/V42_V18_PR538
Page 211 of 279
17B-211
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
PR539THROTTLE VALVE GANG 1 MEASURE VOLTAGE
PA R A M E T E R
DEFINITIONThis parameter indicates the throttle valve voltage, gang 1 measured in volts.
Conformity check with engine stopped and ignition on, or engine running, and engine coolant temperature > 80°C
The value must be 0.35 V.
In the event of a fault, apply the interpretation of fault DF095 Throttle potentiometer circuit gang 1.
V42_V04_PR539/V42_V05_PR539/V42_V06_PR539/V42_V14_PR539/V42_V16_PR539/V42_V18_PR539
Page 212 of 279
17B-212
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
PR814NUMBER OF ACTIVE HEATING RESISTORS
PA R A M E T E R
DEFINITIONThis parameter indicates the number of active heating resistors and can be between 0
to 5 depending on the relays activated.
0 if no relay is active
1 if relay 1 is active
2 if relay 2 is active
3 if relays 1 and 2 are active
4 if relays 2 and 3 are active
5 if all of the relays are active
Conformity check: Engine stopped and ignition on, or engine running, and engine coolant temperature < 80°C
In the event of a fault, consult the interpretation of faults:
DF992 Additional heater relay 1 circuit,
DF993 Additional heater relay 2 circuit,
DF994 Additional heater relay 3 circuit.
V42_V04_PR814/V42_V05_PR814/V42_V06_PR814/V42_V14_PR814/V42_V16_PR814/V42_V18_PR814
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 215 of 279
17B-215V2 MR-376-X76-17B050$150.mif
17B
V42 Injection
Program No.: 2A
Vdiag No.: 04, 05, 06,
14, 16, 18
NOTESSpecial note:
Only address this customer complaint after a complete check with the diagnostic
tool.
NO COMMUNICATION WITH THE COMPUTER ALP1
GENERAL APPEARANCE OF ENGINE COMPARTMENT ALP2
APPEARANCE AND MOUNTING OF THE EXHAUST ALP3
LEAK FROM THE ENGINE
FUEL LEAKALP4
ENGINE OIL LEAKALP5
COOLANT LEAKALP6
ODOURS UNDER BONNET
UNUSUAL ODOURALP7
FUEL ODOURALP8
PETROL INJECTION
Fault finding – Customer complaints
Page 216 of 279
17B-216V2 MR-376-X76-17B050$150.mif
PETROL INJECTION
Fault finding – Customer complaints17B
V42 Injection
Program No.: 2A
Vdiag No.: 04, 05, 06,
14, 16, 18
SMOKE UNDER BONNET
ABNORMAL SMOKE IN THE ENGINE COMPARTMENT ALP9
EXHAUST SMOKE
WHITE SMOKE FROM THE EXHAUST ALP10
BLACK SMOKE FROM THE EXHAUST ALP11
BLUE SMOKE FROM THE EXHAUST ALP12