DIESEL INJECTION
Fault finding – Allocation of computer tracks13B
13B - 17V3 MR-372-J84-13B250$180.mif
EDC16
PROGRAM No: C1
Vdiag No.: 51DIESEL INJECTION
Fault finding – Allocation of computer tracks
1 - black connector A, 32 tracks 1 - black connector A, 32 tracks (continued)
Track Description
A1Not used
A2Cruise control on/off switch
A3Passenger compartment L1 multiplex
line network signal
A4Passenger compartment H1 multiplex
line network signal
B1Air conditioning inhibition control
B2Engine speed signal
B3Not used
B4K line diagnostic socket output
C1Not used
C2Not used
C3Speed limiter on/off switch
C4Clutch contact input
D1Protection and Switching Unit supply
(+ after ignition feed)
D2Cruise control programming control
D3Cruise control programming feedback
signal
D4Fuel flow signal
E1Not used
E2Air conditioning cycle control
E3Not used
E4Normally-closed brake switch input
F1Not used
F2Accelerator potentiometer load 2
supply
F3Accelerator potentiometer load 2 signal
F4Accelerator potentiometer load 2 earth
Track Description
G1Protection and Switching Unit supply
(+ BAT 1 after relay)
G2Accelerator potentiometer load 1
supply
G3Not used
G4Battery earth
H1Battery earth
H2Accelerator potentiometer load 1 signal
H3Accelerator potentiometer load 1 earth
H4Battery earth
MR-372-J84-13B250$180.mif
DIESEL INJECTION
Fault finding – Replacement of components13B
13B-20V3 MR-372-J84-13B250$225.mif
EDC16
PROGRAM No: C1
Vdiag No.: 51DIESEL INJECTION
Fault finding – Replacement of components
COMPUTER REPLACEMENT OR REPROGRAMMING
Operations to be carried out before reprogramming the injection computer:
Before reprogramming the injection computer, move the main CC/SL switch to the rest position. The information
about the cruise control or the speed limiter displayed on the instrument panel disappears.
Otherwise, if the main switch remains in the cruise control or speed limiter position during and after reprogramming,
the Cruise control/Speed limiter function will not be operational.
The procedure for resetting the function is as follows:
–Vehicle ignition on.
–Move the cruise control/speed limiter switch to the rest position (the computer detects the rest position at that
moment).
–Move the cruise control/speed limiter switch to the Cruise control position to activate the Cruise control function.
–Move the cruise control/speed limiter switch to the Speed limiter position to activate the Speed limiter function.
Two operations must be performed when replacing or reprogramming the computer:
SC003 Save computer data and SC001 Enter saved data.
–Use SC003 before the computer is replaced or reprogrammed. This enables certain data to be saved in the
diagnostic tool so that the new computer* can be reconfigured like the old one. The saved data are: injector
codes, EGR programming, vehicle options.
–Run SC001 after the computer is replaced or reprogrammed. It enables you to rewrite the data (saved by
command SC003) to the new computer*.
If you cannot establish dialogue with the computer being replaced: you will not be able to save anything. After
replacing the computer, enter the IMA code of each injector manually, reading the code on each injector (see
INJECTOR REPLACEMENT).
Exhaust gas recirculation valve data is programmed automatically the 1
st time the new computer is switched on*.
* new computer or reprogrammed computer. IMPORTANT
–Switch on the diagnostic tool (mains or cigarette lighter supply).
–Connect a battery charger.
–Switch off all electrical consumers (lights, interior lights, air conditioning, radio/CD, etc.).
–Wait for the engine to cool (engine coolant temperature < 60˚ and air temperature < 50˚).
–The GMV are activated automatically when the computer is being reprogrammed.
DIESEL INJECTION
Fault finding – Replacement of components13B
13B-25V3 MR-372-J84-13B250$225.mif
EDC16
PROGRAM No: C1
Vdiag No.: 51
Summary of available configuration readings
NOTESConfiguration readings are used to check the status of the configurations made.
The configuration readings cannot be changed.
The computer is configured as soon as the one of the vehicle's optional system
components is operated.
In the event of a fault, consult the interpretation of command RZ005 PROGRAMMING.
LC009: Air conditioning
WITH OR WITHOUT
LC065: Water in diesel fuel sensor
WITH OR WITHOUT
LC120: Cruise control
WITH OR WITHOUT
LC121: Speed limiter
WITH OR WITHOUT
DIESEL INJECTION
Fault finding – Interpretation of faults13B
13B-30V3 MR-372-J84-13B250$315.mif
DF001
PRESENT
OR
STOREDCOOLANT TEMPERATURE SENSOR CIRCUIT
CC.0 : Short circuit to earth
CO.1 : Short circuit or open circuit to + 12 V
NOTESConditions for applying the fault finding procedure to stored faults:
The fault is declared present:
–when an attempt is made to start the engine,
–when the engine is running.
Special notes:
If the fault is present:
–the coolant temperature: PR064 Coolant temperature is fixed at 119˚C,
–the preheating phase is greater than 10 seconds,
–the low speed motor-driven fan assembly (GMV 1) is continuously supplied,
–if there is a fault with GMV 1, then start GMV 2 for vehicles with air conditioning.
–the level 1 warning light is lit,
–the OBD warning light will illuminate after three consecutive driving cycles (starting
+ 5 seconds + switching off the ignition and waiting 1 minute).
Use bornier Ele. 1681 or Ele. 1590 for all operations on the computer connectors.
Check the connections of the coolant temperature sensor 4-track connector.
Check the injection computer connections.
Repair if necessary.
Measure the resistance of the coolant temperature sensor between tracks 2 and 3 of its black connector.
Replace the sensor if its resistance is not approximately:
75780 ± 7000 Ω at - 40˚C
12460 ± 122 Ω at - 10˚C
2252 ± 112 Ω at 25˚C
811 ± 39 Ω at 50˚C
283 ± 8 Ω at 80˚C
115 ± 3 Ω at 110˚C
87 ± 2 Ω at 120˚C
Check the insulation, continuity and the absence of interference resistance on the following connections:
Injection computer brown 48-track connector B
track F2Track 3 coolant temperature sensor
Injection computer brown 48-track connector B
track H1Track 2 coolant temperature sensor
Repair if necessary.
If the fault is still present, replace the coolant temperature sensor.
AFTER REPAIRDeal with any faults.
Carry out a road test followed by another check with the diagnostic tool.
EDC16
PROGRAM No.: C1
Vdiag No.: 51DIESEL INJECTION
Fault finding – Interpretation of faults
EDC16_V51_DF001
DIESEL INJECTION
Fault finding – Interpretation of faults13B
13B-31V3 MR-372-J84-13B250$315.mif
EDC16
PROGRAM No.: C1
Vdiag No.: 51
DF003
PRESENT
OR
STOREDATMOSPHERIC PRESSURE SENSOR CIRCUIT
1.DEF : Signal outside upper limit
2.DEF : Signal outside lower limit
3.DEF : Inconsistent signal
NOTESConditions for applying the fault finding procedure to stored faults:
The fault is declared present:
–when an attempt is made to start the engine,
–when the engine is running.
Special notes:
The atmospheric pressure sensor is integrated into the injection computer and cannot
be separated.
If the fault is present:
–there is light smoke at the exhaust,
–the atmospheric pressure value changes to safe mode, PR035 Atmospheric
pressure = 750 mbar.
–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 all operations on the computer connectors.
Disconnect the injection computer and check the condition of the contacts and connector.
Repair if necessary.
Display the value of parameter PR041 Turbocharger pressure.
If this value is stuck at 750 mbar, refer to interpretation of fault DF004 Turbocharging pressure sensor circuit.
If the fault is still present, contact the Techline.
AFTER REPAIRDeal with any faults.
Carry out a road test followed by another check with the diagnostic tool.
EDC16_V51_DF003
DIESEL INJECTION
Fault finding – Interpretation of faults13B
13B-32V3 MR-372-J84-13B250$315.mif
EDC16
PROGRAM No.: C1
Vdiag No.: 51
DF004
PRESENT
OR
STOREDTURBOCHARGING PRESSURE SENSOR CIRCUIT
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:
–when an attempt is made to start the engine,
–when the engine is running.
Special notes:
If the fault is present:
–the EGR function is inhibited,
–the turbocharging pressure sensor is in defect mode, PR041 = 750 mbar,
–the level 1 warning light is lit.
Use bornier Ele. 1681 or Ele. 1590 for any operation on the injection computer
connectors.
Order of priority in the event of more than one fault:
Deal with fault DF011 Sensor supply voltage no. 1 first if it is present or stored.
CO.0
NOTESNone
Check the turbocharger pressure sensor connections.
Check the injection computer connections.
Repair if necessary.
Check the continuity and insulation against earth of the following connections:
Injection computer brown 48-track connector B,
track G4Track 3 turbocharging pressure sensor
connector
Injection computer brown 48-track connector B,
track K2Track 4 turbocharger pressure sensor connector
Repair if necessary.
If the fault is still present, replace the turbocharging pressure sensor.
AFTER REPAIRDeal with any faults.
Carry out a road test followed by another check with the diagnostic tool.
EDC16_V51_DF004
DIESEL INJECTION
Fault finding – Interpretation of faults13B
13B-35V3 MR-372-J84-13B250$315.mif
EDC16
PROGRAM No.: C1
Vdiag No.: 51
DF005
PRESENT
OR
STOREDENGINE SPEED SENSOR CIRCUIT
1.DEF : No signal
2.DEF : Inconsistent signal
NOTESConditions for applying the fault finding procedure to a stored fault:
The fault is declared present:
–when an attempt is made to start the engine,
–when the engine is running.
Special notes:
Use bornier Ele. 1681 or Ele. 1590 for all operations on the computer connectors.
The engine speed sensor is consistent with the camshaft sensor.
If the fault is present:
–it is impossible to start the engine or the engine stops,
–the level 2 warning light is lit.
Check the engine speed sensor connections.
Check the injection computer connections.
If one of the connectors is faulty and there is a repair procedure (see Technical Note 6015A, Electrical wiring
repair, Wiring: Precautions for repair), repair the connector, otherwise replace the wiring.
Check that the sensor is correctly mounted and that the flywheel target is not damaged.
Check that the gap between the engine speed sensor and the flywheel is 0.5 to 1.8 mm.
Measure the resistance of the engine speed sensor between terminals A and B of its black connector.
If the winding resistance is not between 510 Ω and 850 Ω at an engine temperature of 20˚C, replace the engine
speed sensor.
Check for continuity and the absence of interference resistance of the following connections:
Injection computer brown 48-track connector B
track B1Track A engine speed sensor
Injection computer brown 48-track connector B
track C1Track B engine speed sensor
If the connection or connections are faulty and there is a repair method (see Technical Note 6015A, Repairing
electrical wiring, Wiring: Precautions for repair), repair the wiring, otherwise replace it.
Repair if necessary.
If the fault is still present, contact the Techline.
AFTER REPAIRDeal with any faults.
Carry out a road test followed by another check with the diagnostic tool.
EDC16_V51_DF005
DIESEL INJECTION
Fault finding – Interpretation of faults13B
13B-36V3 MR-372-J84-13B250$315.mif
EDC16
PROGRAM No.: C1
Vdiag No.: 51
DF007
PRESENT
OR
STOREDRAIL PRESSURE SENSOR CIRCUIT
CC.0 : Short circuit to earth
CO.1 : Short circuit or open circuit to + 12 V
1.DEF : Offset at minimum threshold
NOTESConditions for applying the fault finding procedure to stored faults:
The fault is declared present after repeated engine starts or with the engine running.
Special notes:
Use bornier Ele. 1681 or Ele. 1590 for all operations on the computer connectors.
If the fault is present:
–the engine will stop immediately,
–it is impossible to restart,
–the level 2 warning light is lit.
Priorities when dealing with a number of faults:
Deal with fault DF013 Sensor supply voltage no. 3 first, if it is present or stored.
CC.0
NOTESNone
Check the rail pressure sensor connectors.
Check the injection computer connections.
Repair if necessary.
Check the continuity and insulation to earth of the following connections:
Injection computer brown 48-track connector B
track G3Track 2 rail pressure sensor
Brown 48-track connector B injection computer
track A4Track 3 rail pressure sensor
Repair if necessary.
If the fault is still present, replace the rail pressure sensor and tighten to 35 ± 5 Nm.
Follow the recommended safety advice (see cleanliness advice).
AFTER REPAIRDeal with any faults.
Carry out a road test followed by another check with the diagnostic tool.
EDC16_V51_DF007