1997 RENAULT KANGOO sensor

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

JF5111.0
INJECTION
Fault finding - Introduction
17
E7J 780
engine
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.
17-3

Connect the bornier in place of the computer and check the insulation and continuity of the line:
Computer 20 2 Air temperature sensor
Computer 46 1 Air temperature sensor
Repair if necessary.
JF5111.0
INJECTION
Fault finding - Interpretation of XR25 bargraphs17
E7J 780
engine
Erase the computer memory using G0**.
Try to start the engine. Switch the ignition on, then deal with the other faults.
Remember to carry out a status and parameter check.AFTER REPAIR
Bargraph 3 LH side illuminatedFiche n° 27 side 1/2
AIR TEMPERATURE SENSOR CIRCUIT
XR25 aid:CO, CC- or CC+line 20 or 46

3
If BG 6RH is also illuminated, check line 46 of the computer.NOTES
Check the resistance of the sensor. Replace it if necessary.
The fault persists! Replace the injection computer.
IMPORTANT: The computer has probably been damaged by an electric shock. The cause of the damage
must be found before fitting a new computer.
17-12

Connect the bornier in place of the computer and check the insulation and continuity of the line:
Computer 17 C Oxygen sensor
Repair if necessary.
JF5111.0
INJECTION
Fault finding - Interpretation of XR25 bargraphs17
E7J 780
engine
Turn the engine, switch the ignition on and erase the computer memory using
G0**. Try to start the engine. Switch the ignition on, then deal with the other
faults. Remember to carry out a status and parameter check.AFTER REPAIR
Bargraph 3 RH side illuminated or flashingFiche n° 27 side 1/2
OXYGEN SENSOR CIRCUIT
XR25 aid:CO, CC- or CC+line 17

3
If BG 3RH is flashing, increase the engine speed to 2500 rpm for 5 minutes
If BG3RH becomes permanently illuminated, deal with the fault.
NOTES
Check the connection and the condition of the connector on the oxygen sensor.
Check, ignition on during the timed phase, for :
-earth on track B of the oxygen sensor,
-+ 12 V after the fuel pump relay on track A of the oxygen sensor.
Repair if necessary.
The fault persists. Replace the oxygen sensor.
The fault persists! Replace the injection computer.
IMPORTANT: The computer has probably been damaged by an electric shock. The cause of the damage
must be found before fitting a new computer.
17-13

Connect the bornier in place of the computer and check the insulation and continuity of the line:
Computer 44 B1 Coolant temperature sensor
Computer 15 B2 Coolant temperature sensor
Repair if necessary.
JF5111.0
INJECTION
Fault finding - Interpretation of XR25 bargraphs17
E7J 780
engine
Erase the computer memory using G0**.
Try to start the engine. Switch the ignition on, then deal with the other faults.
Remember to carry out a status and parameter check.AFTER REPAIR
Bargraph 4 LH side illuminatedFiche n° 27 side 1/2
COOLANT TEMPERATURE SENSOR CIRCUIT
XR25 aid:CO, CC- or CC+line 44 or 15

4
If BG 6LH or BG 5LH is also illuminated, check line 44 of the computer.NOTES
The fault persists! Replace the injection computer.
IMPORTANT: The computer has probably been damaged by an electric shock. The cause of the damage
must be found before fitting a new computer.
Check the resistance of the sensor. Replace it if necessary.
17-14

Connect the bornier in place of the computer and check the insulation, continuity and that there is no
interference resistance on the line:
Computer 12 B1 Vehicle speed sensor
Repair if necessary.
JF5111.0
INJECTION
Fault finding - Interpretation of XR25 bargraphs17
E7J 780
engine
Erase the computer memory using G0**.
Try to start the engine. Switch the ignition on, then deal with the other faults.
Remember to carry out a status and parameter check.AFTER REPAIR
Bargraph 4 RH side illuminated or flashingFiche n° 27 side 1/2
VEHICLE SPEED CIRCUIT
XR25 aid:CO, CC- or CC+ line 12

4
Carry out a road test if BG 4RH is flashingNOTES
Check on the vehicle speed sensor for:
-earth on track B2,
-+ 12 after ignition feed on track A.
Repair if necessary.
The fault persists! Replace the sensor.
The fault persists! Replace the injection computer.
IMPORTANT: The computer has probably been damaged by an electric shock. The cause of the damage
must be found before fitting a new computer.
Check the sensor is correctly positioned.
17-15

Connect the bornier in place of the computer and check the insulation, continuity and that there is no
interference resistance on the line:
Computer 45 C Pressure sensor
Computer 44 A Pressure sensor
Computer 16 B Pressure sensor
Repair if necessary.
JF5111.0
INJECTION
Fault finding - Interpretation of XR25 bargraphs17
E7J 780
engine
Erase the computer memory using G0**.
Try to start the engine. Switch the ignition on, then deal with the other faults.
Remember to carry out a status and parameter check.AFTER REPAIR
Bargraph 5 LH side illuminatedFiche n° 27 side 1/2
PRESSURE SENSOR CIRCUIT
XR25 aid:CO, CC- or CC+ line 45, 44 or 16

5
If BG 6RH is also illuminated, check line 45 on the computer.
If BG 6LH or BG 4LH is also illuminated, check line 44 on the computer.NOTES
Check that the pressure sensor is connected correctly both electrically and pneumatically.
Check the conformity of the pressure sensor pipe (it must not be holed or blocked...).
The fault persists! Replace the injection computer.
IMPORTANT: The computer has probably been damaged by an electric shock. The cause of the damage
must be found before fitting a new computer.
The fault persists! Replace the sensor.
17-16

Connect the bornier in place of the computer and check the insulation,
continuity and that there is no interference resistance on the line:
Computer 33 B Target sensor
Computer 34 A Target sensor
Repair if necessary.
JF5111.0
INJECTION
Fault finding - Interpretation of XR25 bargraphs17
E7J 780
engine
Erase the computer memory using G0**.
Try to start the engine. Switch the ignition on, then deal with the other faults.
Remember to carry out a status and parameter check.AFTER REPAIR
Bargraph 5 RH side illuminated or flashingFiche n° 27 side 1/2
FLYWHEEL SIGNAL CIRCUIT
XR25 aid:*25 = CO.0 =>CO or CC- line 33 or 34
*25 = CC.0 =
>CC- line 33 or 34 on the computer
*25 = In =
>sensor incorrectly connected
5
If BG 5RH is flashing, erase the computer memory using G0**.
Try to start the vehicle.
If BG 5RH becomes permanently illuminated or flashes, deal with this fault.
NOTES
*25 = CO.0
*25 = CC.0Check the condition of the flywheel, especially if it has been removed.
The fault persists! Replace the injection computer.
IMPORTANT: The computer has probably been damaged by an electric shock.
The cause of the damage must be found before fitting a new
computer.
Check the target sensor has been correctly connected (the sensor connector must
not be inverted).
Repair if necessary.*25 = In
The fault persists! Replace the sensor.
The fault persists! Replace the sensor.
17-17