check engine RENAULT KANGOO 1997 KC / 1.G Foult Finding - Injection Manual Online

JF5111.0
INJECTION
Fault finding - Checking conformity
17
E7J 780
engine
Engine cold, ignition on.NOTES
Order of
operationsFunction to be
checkedAction Bargraph Display and notes
6 Throttle position
potentiometerNo load
# 17
Accelerator
pedal slightly
depressed
Full load
# 17 16 < X < 50
185 < X < 243
7Absolute pressure
sensor# 01 X = Local atmospheric
pressure
8Coolant temperature
sensor# 02 X = Ambient temperature
± 5 °C
9Air temperature
sensor# 03 X = Ambient temperature
± 5 °C
10Idle speed regulation
stepping motor# 12The value read is variable
depending on the coolant
temperature :
7 % ≤ X ≤ 100 %
11Engine speed
# 06 X = 0 rpm
12Canister bleed
# 23 X = 0.7 %
2
2
2
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JF5111.0
INJECTION
Fault finding - Checking conformity
17
E7J 780
engine
Order of
operationsFunction to be
checkedAction Bargraph Display and notes
1 Change to status test
modeG01*
10.NJ
Use fiche n° 27
status test side
2 No fault presentEnsure this bargraph is not
flashing, otherwise enter
G02* and turn over the fiche.
IMPORTANT: This bargraph
may flash if the vehicle has no
immobiliser. Ignore this
bargraph if fault bargraph 2 RH
side is illuminated and *22 = 2
dEF.
Repair the faulty component
the erase the memory (G0**)
and return to the status test
(G01*)
3 Battery voltage# 04
if in # 04
then # 06 13 volts < X < 14.5 volts
X < 12.7 volts
Engine speed < X < 930
rpm nominal
Engine warm, at idle speed, after fan assembly has operated at least once (air
conditioning not selected).NOTES
20
17-66

JF5111.0
INJECTION
Fault finding - Checking conformity
17
E7J 780
engine
Engine warm, at idle speed, after fan assembly has operated at least once (air
conditioning not selected).NOTES
Order of
operationsFunction to be
checkedAction Bargraph Display and notes
4 Interpretation of
normally illuminated
bargraphs
-
Code present
No load recognition
Engine speed information
received
+ after ignition information
received
Idle speed regulation active
Richness regulation active
Fuel pump active1
2
4
6
6
3
7
17-67

INJECTION
Fault finding - Checking conformity
17
E7J 780
engine
Engine warm, at idle speed, after fan assembly has operated at least once (air
conditioning not selected).NOTES
Order of
operationsFunction to be
checkedAction Bargraph Display and notes
4
(cont)Interpretation of
normally illuminated
bargraphs (cont)
-Illuminates after erasing the
memory to indicate that the
operation has been carried out
correctly
Computer configured for:
manual gearbox (G50*2*)
automatic transmission
(G50*1*)
5 Idle speed Without air
conditioning
operating
# 06
# 12
Air
conditioning
selected
# 06
PAS pressostat
# 06X = 750 ± 50 rpm
2 % < X < 15 %
Illuminated depending on
status of air conditioning
X = 880 ± 50 rpm
if AC requests fast idle speed
X = 850 ± 50 rpm
19
12
19
6
10
9
13
JF5111.0
17-68

JF5111.0
INJECTION
Fault finding - Checking conformity
17
E7J 780
engine
NOTES
Order of
operationsFunction to be
checkedAction Bargraph Display and notes
6Anti-pinking noise
measurement# 13
(3500 rpm, no
load) X variable or not zero
7 Manifold pressure# 01
no consumers X is variable and
approximately 350 ± 50 mb
(this pressure varies with
altitude)
8 Richness regulation Stable engine
speed of 2500
rpm then idle
speed
# 05
# 35X varies in the range from 50 to
900 mV approximately
X is close to 128 and varies
slightly
with a maximum of 255
and minimum of 0
9Adaptive idle speed
correction# 21- 2.4 % < X < 6.2 %
(average value after erasing
the memory: 0)
10 Canister bleed# 23Canister bleed is prevented.
The solenoid valve remains
closed. X = 0.7 %
11 PAS pressostat# 06X = 850 rpm
Engine warm, at idle speed, after fan assembly has operated at least once.
6
6
7
13
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JF5111.0
INJECTION
Fault finding - Checking conformity
17
E7J 780
engine
Checks to be carried out during a road test.NOTES
Order of
operationsFunction to be
checkedAction Bargraph Display and notes
1 Change to status testG01*
10.NJ
Use fiche n° 27
status test side
2 No fault presentEnsure this bargraph is not
flashing, otherwise enter
G02* and turn over the fiche.
IMPORTANT: This bargraph
may flash if the vehicle has no
immobiliser. Ignore this
bargraph if fault bargraph 2 RH
side is illuminated and *22 = 2
dEF.
Repair the faulty component
the erase the memory (G0**)
and return to the status test
(G01*)
3 Canister bleed# 23Canister bleed is authorised
X = variable and > 0.7
4Vehicle speed
information# 18X = vehicle speed read on
speedometer
5 Pinking sensor Vehicle under
load and
engine speed
2000 rpm
# 13
# 15X = variable and not zero
0 ≤ X ≤ 7
(if there is a sensor fault, the
advance is retarded
systematically by 3° , which is
not visible using # 15)
11
20
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JF5111.0
INJECTION
Fault finding - Checking conformity
17
E7J 780
engine
Checks to be carried out during a road test.NOTES
Order of
operationsFunction to be
checkedAction Bargraph Display and notes
6 Adaptive richness After
programming
phase
# 30
# 31 64 ≤ X ≤ 192
(average value after erasing
the memory: 128)
64 ≤ X ≤ 192
(average value after erasing
the memory: 128)
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JSA051.0
INJECTION
Fault finding - Introduction
17
D7F 710
engine -
35 tracks
If the information obtained by the XR25 requires electrical continuities to be checked, connect bornier MS
1048.
Bornier MS 1048 is a 35 track base with a printed circuit on which are 35 copper coated surfaces, numbered
from 1 to 35.
Using the wiring diagrams, the tracks connecting the components to be tested can be easily identified.
IMPORTANT :
• All tests using bornier MS 1048 must be carried out with the battery disconnected.
• The bornier is only designed to operate with an ohmmeter. Under no circumstances should 12 Volts be
applied to the test points.
89024S3
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JSA051.0
INJECTION
Fault finding - Introduction
17
D7F 710
engine -
35 tracks
DESCRIPTION OF THE FAULT-FINDING PHASES
The process described below is to be carried out in all cases of faults.
XR25 FAULT-CHECKING
This phase is the essential starting point for any intervention on the vehicle.
There are several constraints to the treatment of the bargraphs :
- A priority in the order of treatment when several bargraphs are illuminated.
- The interpretation of a bargraph depending on whether it is constantly illuminated or flashing .
1 - Order of priority
A series of illuminated bargraphs corresponding to the sensors with the same 12 V or having the same
earth, indicates a fault in this source. These priorities are dealt with in the "NOTES" section of the
fault-finding of the bargraph concerned.
2 - Input / output fault bargraphs
a) Illuminated :
The fault is present : treat the fault following the method described in the "INTERPRETATION OF XR25
BARGRAPHS" section.
b) Flashing :
Note the bargraphs displayed on the XR25.
Erase the memory of the computer and attempt to re-illuminate the bargraph: ignition on, idle speed
(or at starter speed) or by means of a road test (the "NOTES" section in the fault finding for the
bargraph concerned may help to determine the conditions under which the bargraph will illuminate).
If the bargraph has re-illuminated (fixed or flashing) :
The fault is present once again. In this case, treat the fault bargraph.
If the bargraph has not re-illuminated, check :
- the electrical lines which correspond to the flashing fault,
- the connectors of these lines (for rust, bent pins...).
- the resistance of the component found to be faulty.
- the cleanliness of the wires (insulation melted or cut, friction..).
NOTE : If the customer complaint does not correspond to the fault bargraph which is flashing
(example : Air temperature sensor fault bargraph flashing, but no customer complaint) ignore
this memorised fault and erase it.
3 - No bargraphs illuminated
If no bargraphs are illuminated on the XR25, carry out a status and parameter check. This may help in
detecting a problem.
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JSA051.0
INJECTION
Fault finding - Introduction
17
D7F 710
engine -
35 tracks
XR25 CHECKING STATUSES AND PARAMETERS
The status and parameter check is aimed at checking the statuses and parameters which do not illuminate
any fault bargraphs if they are outside of permitted tolerance values . This phase allows :
- Faults to be found without the illumination of fault bargraphs which may correspond to a customer
complaint (example : absence of no load information causing an unstable idle speed).
- The correct operation of the injection to be checked and the risk of faults appearing shortly after the
repair to be eliminated.
This section contains fault-finding for statuses and parameters, under their test conditions
(example : fault finding for # 01 ignition on and fault finding for # 01 engine running).
If a status does not operate normally or a parameter is outside of permitted tolerance values, consult the
fault-finding page indicated in the "Fault-finding" column.
XR25 CHECK CORRECT
If the XR25 check is correct, but the customer complaint persists, the problem must be dealt with through
customer complaints.
Treatment of customer complaints
This section has fault charts, which suggest a series of possible causes of the problem.
These lines of enquiry must only be used in the following cases :
- No fault bargraph appears on the XR25.
- No faults are detected during the checking of statuses and parameters.
- The vehicle is not operating correctly
POST-REPAIR CHECK
This operation is a simple check of the repair (by a command, or by an XR25 command mode ...).
This makes it possible to check that the system upon which the intervention has been carried out is correct
electrically.
It is an introduction to the road test.
ROAD TEST
A road test is essential in order to guarantee the correct operation of the vehicle and to test the quality of the
repair. Its role is to make sure that no faults occur (or will occur) when driving.
In order to be significant, the road test is subject to special driving conditions.
17-78