Page 173 of 279
17B-173V2 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.
ET673JAMMED ACCELERATOR PEDAL
STATUS DEFINITIONYES: This status indicates that the accelerator pedal is jammed.
NO: This status indicates that the accelerator pedal is not jammed.
NOTESTo reinitialise this status, clear the fault memory by running command RZ001 Fault
memory.
Conformity check: Engine stopped, ignition on or engine running.
YESCheck that the accelerator pedal is not jammed or that there is nothing impeding its
operation (floor carpet, etc.).
Check the brake switch (see the interpretation of fault DF050 Brake switch circuit.
V42_V04_ET673/V42_V05_ET673/V42_V06_ET673/V42_V14_ET673/V42_V16_ET673/V42_V18_ET673
Page 174 of 279
17B-174V2 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.
ET717TARGET GEARBOX RATIO
STATUS DEFINITIONREVERSE: This status indicates the gear engaged.
DECLUTCHED: This status indicates the gear engaged.
1: This status indicates the gear engaged.
2: This status indicates the gear engaged.
3: This status indicates the gear engaged.
4: This status indicates the gear engaged
5: This status indicates the gear engaged.
V42_V04_ET717/V42_V05_ET717/V42_V06_ET717/V42_V14_ET717/V42_V16_ET717/V42_V18_ET717
Page 175 of 279

17B-175V2 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.
ET734
ET735
ET736HEATING RESISTOR NO.1 RELAY CONTROLHEATING RESISTOR NO.2 RELAY CONTROL
HEATING RESISTOR NO.3 RELAY CONTROL
STATUS DEFINITIONACTIVE: This status indicates that the relay is supplied.
INACTIVE: This status indicates that the relay is not supplied.
Conformity check: Engine stopped, ignition on or engine running.
INACTIVEStatuses ET734, ET735 and ET736 are INACTIVE with the ignition on and the engine
stopped, or when the engine is warm.
ACTIVEStatuses ET734, ET735 and ET736 are ACTIVE when the engine is started, the
engine coolant temperature is low (< 15°C) and the air temperature is low (<5°).
This program allows the engine coolant to be heated to enable the passenger
compartment to be heated.
To control the operation of the relays, run the following commands:
AC250 Heating resistor no.1 relay.
AC251 Heating resistor no.2 relay.
AC252 Heating resistor no.3 relay.
In the event of a fault, refer to the interpretation of faults:
DF992 Additional heater relay 1 circuit.
DF993 Additional heater relay 2 circuit.
DF994 Additional heater relay 3 circuit.
V42_V04_ET734/V42_V05_ET734/V42_V06_ET734/V42_V04_ET735/V42_V05_ET735/V42_V06_ET735/V42_V04_ET736/V42_V05_ET736/
V42_V06_ET736/V42_V14_ET734/V42_V14_ET735/V42_V14_ET736/V42_V16_ET734/V42_V16_ET735/V42_V16_ET736/V42_V18_ET734/
V42_V18_ET735/V42_V18_ET736
Page 176 of 279

17B-176V2 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.
ET759BRAKING MULTIPLEX SIGNAL DETECTED
STATUS DEFINITIONABSENT: This status indicates that the braking multiplex signal detected is absent.
PRESENT: This status indicates that the braking multiplex signal detected is present.
INTERMEDIATE: This status indicates that the braking multiplex signal detected is
intermediate.
Conformity check: Engine stopped, ignition on or engine running.
Vehicle under + after ignition feed.
– Parking brake released,
– Gear lever in 1
st.
Neither the brake pedal nor the clutch pedal depressed.
Check status ET759.
PRESENT -
INTERMEDIATECheck the correct position and the conformity of the brake pedal sensor.
Run fault finding on the UCH domain (see 87B, UCH).
"ABSENT"The brake pedal sensor is correct.
V42_V04_ET759/V42_V05_ET759/V42_V06_ET759/V42_V14_ET759/V42_V16_ET759/V42_V18_ET759
Page 177 of 279
17B-177V2 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.
ET836TDC SENSOR SIGNAL
STATUS DEFINITIONDETECTED: This status indicates that the TDC sensor signal is detected.
NOT DETECTED: This status indicates that the TDC sensor signal is not detected.
Conformity check: Engine stopped, ignition on or engine running.
NOT DETECTEDIn the event of a fault, refer to the interpretation of fault DF120 Engine speed sensor
signal.
V42_V04_ET836/V42_V05_ET836/V42_V06_ET836/V42_V14_ET836/V42_V16_ET836/V42_V18_ET836
Page 178 of 279

17B-178V2 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.
ET846INJECTION PROTECTION
STATUS DEFINITIONNOT PROTECTED
BLANK: No signal
PROTECTED STATUS 1: Fault on coded line circuit
PROTECTED STATUS 2: Fault on immobiliser memory area
PROTECTED STATUS 3: Injection computer self-protection
BLANK:
– The injection computer does not receive a signal from the UCH computer.
– Run fault finding on the multiplex network.
PROTECTED STATUS 1:
The UCH computer does not respond to the authentication requests from the injection computer.
Several possibilities:
– either the UCH computer was not programmed with the vehicle's card/key,
– or the vehicle's card/key is not recognised by the UCH computer.
– Run fault finding on the UCH computer.
PROTECTED STATUS 2:
Several possibilities:
– either the injection computer is blank and was not programmed with the immobiliser code, and the UCH
computer is not authorised to send the immobiliser code,
– Connect a diagnostic tool to the UCH computer to authorise it to send the immobiliser code.
– or the UCH computer has detected a fault,
– Run fault finding on the UCH computer.
V42_V04_ET846/V42_V05_ET846/V42_V06_ET846/V42_V14_ET846/V42_V16_ET846/V42_V18_ET846
Page 179 of 279

17B-179V2 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.
ET846
CONTINUED
PROTECTED STATUS 3:
There are several possible causes, in the following order:
– check that the UCH computer has not detected a fault,
– Run fault finding on the UCH computer.
– check that the injection computer has not already been programmed with the immobiliser code for another
vehicle using the status.
– Check that the injection computer corresponds correctly to the vehicle on which fault finding is being run.
– if none of the 2 previous points is the cause, check that the injection computer is not in anti-scanning mode after
undergoing several failed authentication attempts,
– It only leaves this mode when the following sequence of operations is carried out:
1- switch off the ignition,
2- switch on the ignition again and wait for at least 20 seconds under + after ignition feed,
3- switch off the ignition and ensure that the end of the self-feed phase of the injection computer is observed (the
length of time varies depending on the engine coolant temperature and can be 10 minutes maximum),
4- switch on the ignition again and start the vehicle,
5- if the vehicle does not start, repeat this procedure 3 times,
6- if the vehicle still does not start, contact the Techline.
Page 181 of 279
17B-181V2 MR-376-X76-17B050$120.mif
PETROL INJECTION
Fault finding – Parameter summary table17B
V42 Injection
Program No.: 2A
Vdiag No.: 04, 05, 06,
14, 16, 18
Tool
ParameterDiagnostic tool title
PR344 Pressure sensor voltage
PR427Average pinking signal
PR429Measured throttle position
PR444Integral idling speed regulation correction
PR446Upstream O2 sensor heating resistance
PR447Downstream O2 sensor heating resistor
PR448Ignition advance
PR469Cylinder 1 pinking value
PR471Cylinder 2 pinking value
PR473Cylinder 3 pinking value
PR475Cylinder 4 pinking value
PR492Motorised throttle position setpoint
PR538Measured throttle voltage, gang 2
PR539Measured throttle voltage gang 1
PR606Adaptive idling speed correction
PR624Richness regulation programming offset
PR625Richness regulation programming gain
PR743Alcohol level estimated in the tank
PR770Camshaft offset
PR814Number of active heating resistors
PR831Combustion misfiring counter