display RENAULT KANGOO 1997 KC / 1.G Foult Finding - Injection Workshop Manual

DPCF01 1.0
LUCAS DIESEL INJECTION
Fault finding - Introduction
13
F8Q
630 / 662
CONDITIONS FOR APPLYING THE TESTS DESCRIBED IN THIS FAULT FINDING DOCUMENT
The tests described in this fault finding section should only be applied to the vehicle if the title of the fault
treated corresponds exactly to the display noted on the XR25 when the ignition is switched on.
If a bargraph is interpreted when flashing, the conditions for confirming the presence of an actual fault (and
the necessity of applying the fault finding) are shown in the "Notes" section or at the start of the bargraph
interpretation.
If a bargraph is only interpreted if it is permanently illuminated, the application of these tests recommended
in the fault finding document when the bargraph is flashing will not allow the cause of the memorised fault
to be determined. In this case, only checking of the wiring and connections of the faulty component should
be carried out (the fault is simply memorised as it was not present at the moment of testing).
NOTE: The ignition should be switched off before the XR25 is used.
SPECIAL TOOLING REQUIRED FOR OPERATIONS ON THE DPC DIGITAL INJECTION SYSTEM
- XR25 test kit.
- XR25 cassette N° 17 minimum.
- 25 track bornier Elé. 1332 for testing using the computer connector.
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BARGRAPH SYMBOLS
FAULTS
(always on a coloured background)
If illuminated, there is a fault with the product tested. The associated text
defines the fault.
The bargraph may be :
- Permanently illuminated : fault present.
- Flashing : fault memorised
- Extinguished : no fault or not diagnosed
STATUS (always on a white background)
Bargraph always at the top right hand side.
If illuminated dialogue has been established with the computer for the product.
If it remains extinguished:
- The code does not exist.
- There is a fault with the tool, the computer or the XR25 / computer connection.
The representation of the following bargraphs indicates their initial status:
Initial status: (ignition on, engine stopped, no operator action)
Indefinite
- illuminated when the function or condition on the fiche is met.
Extinguished
Illuminated - extinguishes when the function or condition on the fiche is no
longer met
ADDITIONAL NOTES
Certain bargraphs have a *. The *.. command, when the bargraph is illuminated,
allows additional information on the type of fault or status to be displayed.
DPCF01 1.0
LUCAS DIESEL INJECTION
Fault finding - XR25 fiche
13
or
13-4

DPCF01 1.0
LUCAS DIESEL INJECTION
Fault finding - Interpretation of XR25 bargraphs13
AFTER REPAIRErase the computer memory (G0**), switch the ignition off, then carry out a road
test.
Finish the operation by checking using the XR25.
Bargraph 12 RH illuminated
Full load or no load not programmed12
None NOTES
Programme the full load position of the accelerator pedal using command G31* (do not adjust the load
lever directly).
Enter code G31* on the XR25 (engine speed zero).
- Press the accelerator pedal when the display flashes "PF".
The display then shows "bon", "Fin" then "6/7.dIE" when the procedure has been completed correct-
ly. Bargraph 12 RH side must be extinguished.
- Switch off the ignition.
Fiche n° 60 1/2
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DPCF01 1.0
LUCAS DIESEL INJECTION
Fault finding - Aid
13
REPLACING THE COMPUTER
A)On these computers it is necessary to programme the load lever full load position (this value is required to
replace and adjust the load lever position potentiometer).
Programming procedure:
• Enter code G31* on the XR25 (engine speed zero)
• Press the accelerator pedal until the display flashes
"PF".
The display then shows "bon", "Fin" then "6/7.dlE" when the procedure has been carried out correctly.
Bargraph 12 RH side must be extinguished.
• Switch off the ignition.
B)Lucas digital DPC injection computers are sold pre-configured to "with air conditioning".
If the vehicle does not have air conditioning, use command G50*4* on the XR25 to programme "without
air conditioning".
Lucas digital DPC injection computers are sold pre-configured to "with power assisted steering" (with po-
wer assisted steering pump assembly).
If the vehicle does not have a power assisted steering pump assembly (vehicle without air conditioning),
use command G50*9* on the XR25 to programme "without power assisted steering".
Vehicles fitted with power assisted steering but without air conditioning must be configured to "without
power assisted steering".
REPLACING THE LOAD LEVER POSITION POTENTIOMETER
The load lever position potentiometer may only be replaced in After Sales if the full load position has been
programmed into the computer before the fault with the potentiometer.
Procedure for replacing and adjusting the load lever position potentiometer:
• Fit the new potentiometer into position without locking the mounting bolts.
• Connect the potentiometer and set up the XR25 (S8 code D34).
• Start command G32* on the XR25, keep the accelerator pedal fully depressed (do not touch the load lever
directly) and turn the potentiometer until the display on the XR25 shows a value other than H.L (outside li-
mits). Adjust the setting by turning the potentiometer to obtain 0 on the display.
• Tighten the mounting bolts with the potentiometer in this position then press * to complete the adjus-
tment procedure.
13-31

DPCF01 1.0
LUCAS DIESEL INJECTION
Fault finding - Checking conformity
13
Engine cold, ignition onNOTES
Order of
operationsFunction to check Action Bargraph Display and notes
1 Dialogue with XR25D34
(selector on
S8) 6. dlE
Use fiche n° 60
fault test side
2Interpretation of
normally illuminated
bargraphs Fault test
Code present
3 Change to status test
modeG01* 7. dlE
Use fiche n° 60
status test side
4 Interpretation of
normally illuminated
bargraphs
Code present
Advance corrector fed
Illuminated if command mode
G0** has been used since the
last dialogue took place
Fault warning light fed
Illuminated in preheating
phase
Injection computer may give
load lever position to other
computers (not used)
Injection computer may give
engine speed information to
other computers (not used)
1
1
1
2
11
4
11
10
10
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DPCF01 1.0
LUCAS DIESEL INJECTION
Fault finding - Checking conformity
13
Engine cold, ignition onNOTES
Order of
operationsFunction to check Action Bargraph Display and notes
5Computer
configuration
With AC
Without ACG50*3*
G50*8*
G50*4*
G50*9*With AC
With PAS with pump
Without AC
With conventional PAS
6Absolute pressure
sensor#16 X = local atmospheric pressure
7Coolant temperature
sensor#02 X = Ambient temperature
± 5 °C
8Air temperature
sensor#03 X = Ambient temperature
± 5 °C
9EGR solenoid valve
#24 X = 0
18
18
19
19
13-33

DPCF01 1.0
LUCAS DIESEL INJECTION
Fault finding - Checking conformity
13
Order of
operationsFunction to check Action Bargraph Display and notes
1 Change to status testG01* 7. dlE
Use fiche n° 60
status test side
2 No faultsEnsure this bargraph is not
flashing, otherwise enter
G02* and turn the fiche over.
Repair the faulty component
then erase the memory (G0**)
and return to status testing
(G01*)
3 Battery voltage#04 13 volts < X < 14.5 volts
Engine warm at idle speed after at least one operation of the engine cooling fan
assembly (air conditioning not selected).NOTES
20
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DPCF01 1.0
LUCAS DIESEL INJECTION
Fault finding - Checking conformity
13
Engine warm at idle speed after at least one operation of the engine cooling fan
assembly (air conditioning not selected).NOTES
Order of
operationsFunction to check Action Bargraph Display and notes
4 Interpretation of
normally illuminated
bargraphs
-
Code present
Advance corrector fed
Illuminated if fast idle solenoid
valve is fed
Illuminated for 40 seconds at
idle speed after starting phase
Illuminated if command mode
G0** has been used since the
last dialogue took place
Illuminated for post heating
Illuminated if altimetric
corrector is fed
Illuminated if vehicle has a PAS
pump assembly
(AC version only)
Injection computer may give
load lever position to other
computers (not used)
Injection computer may give
engine speed information to
other computers (not used)1
2
2
3
4
5
6
6
11
11
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DPCF01 1.0
LUCAS DIESEL INJECTION
Fault finding - Checking conformity
13
Engine warm at idle speed after at least one operation of the engine cooling fan
assembly (air conditioning not selected).NOTES
Order of
operationsFunction to check Action Bargraph Display and notes
5 EGR solenoid valve After starting
phase for
40 seconds
#24
After
40 seconds
#24EGR solenoid valve fed
X = 82
X = 0
6Computer
configuration
With AC
Without ACG50*3*
G50*8*
G50*4*
G50*9*With AC
With PAS with pump
Without AC
With conventional PAS
3
3
18
18
19
19
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JF5111.0
INJECTION
Fault finding- Introduction
17
E7J 780
engine
SETTING UP DIALOGUE BETWEEN THE XR25 AND THE COMPUTER
- Connect the test kit to the diagnostic socket.
- Put the selector on S8
- Switch on the ignition.
- Enter D13 9.NJ
COMPUTER IDENTIFICATION
The computer is not identified by reading a fault code but by reading the Part Number directly from the
computer. After having set up a dialogue with the computer:
ENTER G70*7700
XXX
XXX
The Part Number will then appear on the central display in three sequences.

Each sequence is displayed for approximately two seconds. The display is repeated twice .
ERASING THE MEMORY (ignition on)
After an operation on the injection system the computer’s memory can be erased by using the code G0** .
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