DIESEL INJECTION
Fault finding – Interpretation of faults13B
13B-39V3 MR-372-J84-13B250$315.mif
EDC16
PROGRAM No.: C1
Vdiag No.: 51
DF008
PRESENT
OR
STOREDPEDAL POTENTIOMETER CIRCUIT GANG 1
CO.0 : Open circuit or short circuit to earth
CC.1 : Short circuit to + 12 V
1.DEF : Inconsistency of the signal
2.DEF : Accelerator pedal sensor locked
NOTESConditions for applying the fault finding procedure to stored faults:
The fault is declared present after a series of full-load/no-load actions on the
accelerator pedal.
Special notes:
Turbocharging, Passenger Compartment Heating Resistor activation and cruise
control/speed limiter are not authorised.
If CO.0, CC.1, 1.DEF is present the level 1 warning light is lit.
The engine speed is set at 1,400 rpm if there is a fault on gang 1 and 2 of the pedal
potentiometer and the engine torque is limited.
Use bornier Ele. 1681 or Ele. 1590 for all operations on the computer connectors.
Priorities when dealing with a number of faults:
Deal with fault DF011 Sensor supply voltage no. 1 first if it is present or stored.
WARNING
This fault may appear if the wiring harness has been damaged.
Follow the procedure described in the Wiring Check in the Introduction.
This check enables the condition and the conformity of the engine wiring harness to be checked.
CO.0
NOTESPriorities when dealing with a number of faults:
If fault DF009 Pedal potentiometer circuit gang 2 is
present at the same time, check that the pedal sensor
connector is connected correctly.
Check the pedal potentiometer connections.
Check the injection computer connections.
Repair if necessary.
AFTER REPAIRDeal with any faults.
Carry out a road test followed by another check with the diagnostic tool.
EDC16_V51_DF008
DIESEL INJECTION
Fault finding – Interpretation of faults13B
13B-42V3 MR-372-J84-13B250$315.mif
EDC16
PROGRAM No.: C1
Vdiag No.: 51
DF008
CONTINUED 3
2.DEF
NOTESThe brake pedal has been depressed while the accelerator
is depressed and jammed.
Check the brake light switch.
This is a test procedure designed to detect an accelerator pedal that is jammed in the depressed position. It
monitors the accelerator pedal in relation to the brake pedal.
If the test procedure detects depression of the brake pedal over 600 ms, it registers a fault which is stored in the
computer. While this fault is present (both pedals depressed simultaneously) the engine switches to limp home
mode and the engine speed is set at 1,400 rpm.
Once the fault is no longer present (e.g. brake and accelerator pedals released) safe mode is deactivated and the
engine immediately regains its ability to respond to speed/torque requests.
This fault may occur even if the accelerator pedal is not jammed, if there is driver error during use:
- "Heel-and-toe" type driving,
- Vehicle with driving school option,
The procedure in this case should be to clear the fault and take another reading.
If the fault is still present, check the mechanical condition of the accelerator pedal:
–locked in full load position,
–with the pedal blocked by an external component.
Repair if necessary.
Vary the position of the pedal and refer to the conformity check in order to check the operating values of the
accelerator pedal potentiometer.
If the values displayed are inconsistent, replace the accelerator pedal potentiometer.
AFTER REPAIRDeal with any faults.
Carry out a road test followed by another check with the diagnostic tool.
DIESEL INJECTION
Fault finding – Interpretation of faults13B
13B-43V3 MR-372-J84-13B250$315.mif
EDC16
PROGRAM No.: C1
Vdiag No.: 51
DF009
PRESENT
OR
STOREDPEDAL POTENTIOMETER CIRCUIT GANG 2
CO.0 : Open circuit or short circuit to earth
CC.1 : Short circuit to + 12 V
1.DEF : Inconsistency of the signal
NOTESConditions for applying the fault finding procedure to stored faults:
The fault is declared present after a series of full-load/no-load actions on the
accelerator pedal.
Special notes:
Turbocharging, passenger compartment heating resistor activation and the cruise
control/speed limiter are not activated.
If the fault is present, the level 1 warning light is lit.
The engine speed is set at 1,400 rpm if there is a fault on gang 1 and 2 of the pedal
potentiometer and the engine torque is limited.
Use bornier Ele. 1681 or Ele. 1590 for all operations on the computer connectors.
Priorities when dealing with a number of faults:
Deal with fault DF012 Sensor feed no. 2 voltage first, if it is present or stored.
WARNING
This fault may appear if the wiring harness has been damaged.
Follow the procedure described in the Wiring Check in the Introduction.
This check enables the condition and the conformity of the engine wiring harness to be checked.
CO.0
NOTESPriorities when dealing with a number of faults:
If fault DF008 Pedal potentiometer circuit track 1 is
present at the same time, check that the sensor is connected
correctly.
Check the pedal potentiometer connections.
Check the injection computer connections.
Repair if necessary.
AFTER REPAIRDeal with any faults.
Carry out a road test followed by another check with the diagnostic tool.
EDC16_V51_DF009
DIESEL INJECTION
Fault finding – Interpretation of faults13B
13B-46V3 MR-372-J84-13B250$315.mif
EDC16
PROGRAM No.: C1
Vdiag No.: 51
DF011
PRESENT
OR
STOREDSENSOR SUPPLY VOLTAGE NO. 1
1.DEF : Sensor reference voltage too low
2.DEF : Sensor reference voltage too high
NOTESConditions for applying the fault finding procedure to stored faults:
The fault is declared present after carrying out a road test or after several attempts at
starting the engine.
Special notes:
If the fault is present:
–the cruise control/speed limiter function is inhibited,
–turbocharging is inhibited,
–the engine speed is limited,
–the level 1 warning light is lit,
–the OBD warning light will come on after three consecutive driving cycles (starting
+ 5 seconds + switching off the ignition and waiting 1 minute).
Use bornier Ele. 1681 or Ele. 1590 for any operation on the injection computer
connectors.
WARNING
This fault may appear if the wiring harness has been damaged.
Follow the procedure described in the Wiring Check in the Introduction.
This check enables the condition and the conformity of the engine wiring harness to be checked.
1.DEF
2.DEF
NOTESPriorities when dealing with a number of faults:
If fault DF008 Pedal potentiometer circuit track 1 is
present at the same time, check that the sensor is connected
correctly.
In the event of the simultaneous presence of fault DF004
Turbocharging pressure sensor circuit, check that the
turbocharger pressure sensor circuit connector is connected
correctly.
The sensors connected to supply no. 1 are:
–Turbocharger pressure sensor.
–Accelerator pedal potentiometer sensor, gang 1.
To locate a faulty sensor and/or connection, disconnect one of these sensors then check whether the fault
becomes stored.
If the fault is still present, start the operation again with the other sensor.
(Wait a few seconds after each disconnection so that the computer can carry out the check).
If the fault is stored after a disconnection, replace the faulty sensor or repair its connection.
Clear the faults created by the multiple disconnections.
AFTER REPAIRDeal with any faults.
Carry out a road test followed by another check with the diagnostic tool.
EDC16_V51_DF011
DIESEL INJECTION
Fault finding – Interpretation of faults13B
13B-48V3 MR-372-J84-13B250$315.mif
EDC16
PROGRAM No.: C1
Vdiag No.: 51
DF012
PRESENT
OR
STOREDSENSOR SUPPLY VOLTAGE No. 2
1.DEF : Sensor reference voltage too low
2.DEF : Sensor reference voltage too high
NOTESConditions for applying the fault finding procedure to stored faults:
The fault is declared present following a road test or after attempting to start the engine
several times.
Special notes:
If the fault is present:
–the EGR functions and passenger compartment heating resistance functions are
inhibited,
–the cruise control/speed limiter function is inhibited,
–the engine speed is limited,
–the level 1 warning light is lit,
–the OBD warning light will come on after three consecutive driving cycles (starting
+ 5 seconds + switching off the ignition and waiting 1 minute).
Use bornier Ele. 1681 or Ele. 1590 for any operation on the injection computer
connectors.
WARNING
This fault may appear if the wiring harness has been damaged.
Follow the procedure described in the Wiring Check in the Introduction.
This check enables the condition and the conformity of the engine wiring harness to be checked.
The sensors connected to feed no. 2 are:
–EGR valve position sensor.
–Accelerator pedal potentiometer sensor gang 2.
–Refrigerant pressure sensor.
To locate a faulty sensor and/or connection, disconnect one of these sensors then check whether the fault
becomes stored.
If the fault is still present, repeat the operation with the other sensors.
(Wait a few seconds after each disconnection so that the computer can carry out the check).
If the fault is stored after a disconnection, replace the faulty sensor or repair its connection.
Clear the faults created by the multiple disconnections.
Check the condition of the connector of the EGR valve position sensor, component code 1460, of the accelerator
pedal potentiometer sensor gang 2, component code 921 and of the refrigerant pressure sensor, component code
1202.
Check the condition of the injection computer connector, component code 120.
If the connectors are faulty and if there is a repair procedure (see Technical Note 6015A, Repairing electrical
wiring, Wiring: Precautions for repair), repair the connector, otherwise replace the wiring.
AFTER REPAIRDeal with any faults.
Carry out a road test followed by another check with the diagnostic tool.
EDC16_V51_DF012
DIESEL INJECTION
Fault finding – Interpretation of faults13B
13B-51V3 MR-372-J84-13B250$315.mif
EDC16
PROGRAM No.: C1
Vdiag No.: 51
DF013
PRESENT
OR
STOREDSENSOR SUPPLY VOLTAGE No. 3
1.DEF : Sensor reference voltage too low
2.DEF : Sensor reference voltage too high
NOTESConditions for applying the fault finding procedure to stored faults:
The fault is declared present following a road test or after attempting to start the engine
several times.
Special notes:
If the fault is present:
–the EGR function is inhibited,
–the engine stops,
–the level 2 warning light is lit,
–the OBD warning light will come on after three consecutive driving cycles (starting
+ 5 seconds + switching off the ignition and waiting 1 minute).
Use bornier Ele. 1681 or Ele. 1590 for any operation on the injection computer
connectors.
WARNING
This fault may appear if the wiring harness has been damaged.
Follow the procedure described in the Wiring Check in the Introduction.
This check enables the condition and the conformity of the engine wiring harness to be checked.
The sensors connected to supply no. 3 are:
–Rail pressure sensor.
–Air flow sensor..
To locate a faulty sensor and/or connection, disconnect one of these sensors then check whether the fault
becomes stored.
If the fault is still present, repeat the operation with the other sensors.
(Wait a few seconds after each disconnection so that the computer can carry out the check).
If the fault is stored after a disconnection, replace the faulty sensor or repair its connection.
Clear the faults created by the multiple disconnections.
AFTER REPAIRDeal with any faults.
Carry out a road test followed by another check with the diagnostic tool.
EDC16_V51_DF013
DIESEL INJECTION
Fault finding – Interpretation of faults13B
13B-53V3 MR-372-J84-13B250$315.mif
EDC16
PROGRAM No.: C1
Vdiag No.: 51
DF015
PRESENT
OR
STOREDMAIN RELAY control CIRCUIT
1.DEF : Relay cut off too soon
2.DEF : Relay cut off too late
NOTESConditions for applying the fault finding procedure to stored faults:
Only deal with this fault if it is stored.
Special notes:
The injection control unit supply relay (50A) is located on the relay plate in the
engine connection unit, under the Protection and Switching Unit.
If the fault is present, the level 1 warning light is lit.
Use bornier Ele. 1681 or Ele. 1590 for any operation on the injection computer
connectors.
Check the Protection and Switching Unit connections.
Check the injection computer connections.
Repair if necessary.
Check the condition of the battery terminals making sure they are correctly tightened.
Check the condition of the injection supply relay and its mounting.
Check the 5D (5A) + after ignition feed injection fuse located on the UPC.
Repair if necessary.
Check the continuity, and absence of interference resistance of the following connection:
Injection computer brown 48-track connector B
track E1Track 2 injection supply relay mounting
Repair if necessary.
If the fault is still present, contact the Techline.
IMPORTANT!WARNING
If the UPC does not detect the injection computer frames the engine fan assembly 1
will be switched on until the battery is completely discharged.
In the event that engine cooling fan 1 is not working, GMV 2 will be supplied.
AFTER REPAIRDeal with any faults.
Carry out a road test followed by another check with the diagnostic tool.
EDC16_V51_DF015
DIESEL INJECTION
Fault finding – Interpretation of faults13B
13B-54V3 MR-372-J84-13B250$315.mif
EDC16
PROGRAM No.: C1
Vdiag No.: 51
DF017
PRESENT
OR
STOREDPRE-POSTHEATING UNIT CONTROL CIRCUIT
CC.1 : Short circuit to + 12 V
CC.0 : Open circuit or short circuit to earth
CO : Open circuit
1.DEF : Internal electronic fault
NOTESConditions for applying the fault finding procedure to a stored fault:
The fault is declared present after attempting to start the engine several times or after
an actuator command AC001 Preheating unit.
Special notes:
If the fault is present, it is difficult or even impossible to start the vehicle when cold.
Use bornier Ele. 1681 or Ele. 1590 for any operation on the injection computer
connectors.
CC.1
NOTESNone
Check the pre-postheating unit connections and the heating plug supply cables.
Check the injection computer connections.
Repair if necessary.
Check the condition of the F2 (70A) supply fuse on the power supply fuse board.
Check the continuity and insulation against + 12 V of the following connections:
Injection computer grey 32-track connector C, track E2 Track 8 preheating unit
Injection computer grey 32-track connector C, track A4 Track 3 preheating unit
Repair if necessary.
If the fault is still present, replace the pre-postheating unit.
AFTER REPAIRDeal with any faults.
Carry out a road test followed by another check with the diagnostic tool.
EDC16_V51_DF017