Hi Richard, I have this for code df053 running edc16 (not sure on the pump type) If glow plug light is orange look at 3.DEF/8.DEF. If light is red look at CC.0/CC.1/CO/ 1.DEF/2.DEF/5.DEF/6.DEF/7.DEF. If light not on look at 4.DEF. EDC16 INJECTION
Program No.: C1
Vdiag No: 44, 48 and 4C
DF053
PRESENT
OR
STORED
RAIL PRESSURE REGULATION FUNCTION
CC.1 : short circuit to + 12 V
CC.0 : short circuit to earth
CO : open circuit
1.DEF: internal electrical fault
2.DEF: pressure measured too low
3.DEF: pressure measured too high
4.DEF: insufficient pressure
5.DEF: pressure < minimum
6.DEF: pressure > maximum
7.DEF: significant pump control
8.DEF: significant pump control at idle speed
NOTES
Conditions for applying fault finding procedures to stored faults:
The fault is declared present following a road test or after attempting to start the engine.
Special notes:
If the fault is present:
– It is not possible to start the engine,
– the level 2 warning light is lit.
Use bornier Elé. 1681 for all operations on the injection computer connectors.
CC.1 NOTES None
Check the rail pressure regulator connectors.
Check the injection computer connections.
Repair if necessary.
Measure the resistance of the rail pressure regulator between tracks 1 and 2.
If the resistance is not 3 Ω ± 0.1 at 20 °C, replace the rail pressure regulator.
Check the continuity and insulation against the + 12 V supply of the following connection:
Injection computer 48-track brown connector B, track M4 Track 2 of the fuel flow regulator
If the fault is still present replace the rail pressure regulator.
AFTER REPAIR
Deal with any faults.
Carry out a road test, then check with the diagnostic tool.
EDC16_V44_DF053/EDC16_V48_DF053/EDC16_V4C_DF053
Edition 6
DIESEL INJECTION
Fault finding - Interpretation of faults 13B
13B-66
EDC16 INJECTION
Program No.: C1
Vdiag No: 44, 48 and 4C
DF053
CONTINUED 1
CC.0
CO
NOTES None
Check the rail pressure regulator connectors.
Check the injection computer connections.
Repair if necessary.
Measure the resistance of the rail pressure regulator between tracks 1 and 2.
If the resistance is not 3 Ω ± 0.1 at 20 °C, replace the rail pressure regulator.
Check the continuity and insulation against earth of the following connection:
Injection computer brown 48-track connector B, track M4 Track 2 of the rail pressure regulator
With the ignition on, check for + 12 V after relay on track 1 of the rail pressure regulator.
If there is not + 12 V on track 1, check the continuity and the absence of interference resistance of the
following connection:
Rail pressure regulator track 1 PPM1 connector, track 1 of the UPC
Repair if necessary.
If the fault is still present, replace the fuel flow regulator.
AFTER REPAIR
Deal with any faults.
Carry out a road test, then check with the diagnostic tool.
Edition 6
DIESEL INJECTION
Fault finding - Interpretation of faults 13B
13B-67
EDC16 INJECTION
Program No.: C1
Vdiag No: 44, 48 and 4C
*Opening Cyclic Ratio
DF053
CONTINUED 2
1.DEF NOTES None
Measure the resistance of the rail pressure regulator between tracks 1 and 2.
If the resistance is not 3 Ω ± 0.1 at 20 °C, replace the rail pressure regulator.
Check the continuity and the absence of interference resistance of the following connections:
Injection computer 48-track brown connector B, track M4 Track 2 of the rail pressure
regulator
UPC PPM1 connector, track 1 Track 1 of the rail pressure
regulator
Repair if necessary.
AFTER REPAIR
Deal with any faults.
Carry out a road test, then check with the diagnostic tool.
Edition 6
DIESEL INJECTION
Fault finding - Interpretation of faults 13B
13B-68
EDC16 INJECTION
Program No.: C1
Vdiag No: 44, 48 and 4C
DF053
CONTINUED 3
2.DEF to
8.DEF
NOTES None
In the event of rail overpressure:
Check that the injectors are operating correctly (see Component test, Test 1, Injector Test).
Check that the rail pressure sensor is operating correctly using command AC011 Rail pressure regulator. Display
parameter PR038 Rail pressure, and refer to the conformity check to check the operating values.
If these checks do not reveal any faults, and if the fault is still present, replace the rail pressure sensor.
In the event of rail underpressure:
Check that the rail pressure sensor is operating correctly using command AC011 Rail pressure regulator. Display
parameter PR038 Rail pressure, and refer to the conformity check to check the operating values.
Check the low pressure diesel circuit priming.
Check the conformity of the diesel filter connections.
Check the condition of the filter (clogging and water saturation).
Check that there are no air bubbles between the filter and the high pressure pump.
Check the low and high pressure diesel fuel circuit sealing (visual inspections, odour, etc.): pump housing,
pressure relief valve, pipes, rail and injector unions, injector wells, etc.
Check the conformity of the seal fitting on the pressure regulator.
Check that the injectors are operating correctly (see Component test, Test 1, Injector Test).
Carry out the necessary operations.
If the fault is still present replace the rail pressure regulator.
AFTER REPAIR
Deal with any faults.
Carry out a road test, then check with the diagnostic tool.