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

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 5 RH illuminated (co.0) or flashing (cc.1)
Altimetric corrector control circuit
XR25 aid:*25 :co.0 : Open circuit or short circuit to earth
cc.1 : Short circuit to 12 volts
5
Use bornier Elé. 1332 for any operations on the computer connector.NOTES
Fiche n° 60 1/2
co.0
Measure the resistance of the altimetric corrector relay coil (position H on engine connection unit).
Ensure the continuity and the insulation from earth of the connection between track 15 of the computer
connector and terminal 2 of the corrector relay mounting.
Ensure the presence of + after ignition feed on track 1 of the corrector relay mounting.
Test the connections on the computer connector and the relay mounting.
None NOTES
cc.1
Measure the resistance of the altimetric corrector relay coil (position H on engine connection unit).
Replace the relay if the resistance is not approximately 85 ohms.
Ensure the insulation from +12 volts of the connection between track 15 on the computer connector
and terminal 2 on the corrector relay mounting.
Even if present at the moment of testing, this fault is declared by a
flashing BG 5RH side. To confirm its presence and the necessity of
following the fault finding below, erase the computer memory
then start command mode G19*.
The fault is present if the bargraph flashes again.
NOTES
If the fault persists after these tests, replace the altimetric corrector relay.
If the "altimetric corrector circuit" fault reappears, replace the computer (consult the "Aid" section for
this operation).
If the fault persists after these tests, replace the altimetric corrector relay.
If the "altimetric corrector circuit" fault reappears, replace the computer (consult the "Aid" section for
this operation).
13-15

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 8 LH illuminated (co.0) or flashing (cc.1)
Preheating relay N° 1 control circuit
XR25 aid:*08 :co.0 : Open circuit or short circuit to earth
cc.1 : Short circuit to 12 volts
8
Use bornier Elé. 1332 for any operations on the computer connector.NOTES
co.0
Ensure the continuity and insulation in relation to earth of the connection between track 14 on the
computer connector and track B1 on the relay unit connector.
Ensure the presence of + after ignition feed on track A1 on the relay unit connector.
Test the connections on the 2 connectors.
None NOTES
If the fault persists after these tests, replace the relay unit.
If the "preheating relay No. 1 control circuit" fault reappears, replace the computer (consult the "Aid"
section for this operation).
cc.1
Ensure insulation in relation to 12 volts of the connection between track 14 on the computer connector
and track B1 on the relay unit connector.
Test the connections on the 2 connectors.
Even if present at the moment of testing, this fault is still declared
by a flashing BG 8LH side. To confirm its presence and the necessity
of following the fault finding below, erase the computer memory
then start command mode G10*1*.
The fault is present if the bargraph flashes again.
NOTES
If the fault persists after these tests, replace the relay unit.
If the "preheating relay No. 1 control circuit" fault reappears, replace the computer (consult the "Aid"
section for this operation).
Fiche n° 60 1/2
13-20

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 9 RH illuminated (co.0) or flashing (cc.1)
PAS pump assembly relay control circuit
XR25 aid:*29 :co.0 : Open circuit or short circuit to earth
cc.1 : Short circuit to 12 volts
9
Use bornier Elé. 1332 for any operations on the computer connector.NOTES
co.0
Measure the resistance of the PAS pump assembly relay coil (position C on the engine connection unit).
Replace the relay if its resistance is not approximately 65 ohms.
Ensure the continuity and insulation from earth of the connection between track 20 on the computer
connector and terminal 2 on the pump assembly relay mounting.
Ensure the presence of + after ignition feed at terminal 1 of the pump assembly relay mounting.
Check the connections on the computer connector and the relay mounting.
None NOTES
If the fault persists after these tests, replace the PAS pump assembly relay.
If the "PAS pump assembly relay control circuit" fault reappears, replace the injection computer (consult
the "Aid" section for this operation).
cc.1
Measure the resistance of the PAS pump assembly relay coil (position C on the engine connection unit).
Replace the relay if its resistance is not approximately 65 ohms.
Ensure the insulation from + 12 Volts of the connection between track 20 of the computer connector
and terminal 2 on the pump assembly relay mounting.
Even if present at the moment of testing, this fault is still declared
by a flashing BG 9RH side. To confirm its presence and the necessity
of following the fault finding below, erase the computer memory
then start command mode G36*.
The fault is present if the bargraph flashes again.
NOTES
If the fault persists after these tests, replace the PAS pump assembly relay.
If the "PAS pump assembly relay control circuit" fault reappears, replace the injection computer (consult
the "Aid" section for this operation).
Fiche n° 60 1/2
13-21

Bargraphs 9 RH and 9 LH side
Air conditioning
XR25 aid :BG 9LH illuminated if AC requested
BG 9RH illuminated if AC authorised
DPCF01 1.0
LUCAS DIESEL INJECTION
Fault finding - Interpretation of XR25 bargraphs13
AFTER REPAIR
Bargraphs 5 and 6 RH and LH sides
Relay control5
None NOTES
These bargraphs visualise the control of the various relays:
- Preheating relay N° 1.
- Preheating relay N° 2 (not used).
- Power assisted steering pump assembly relay (for AC + PAS).
- Altimetric corrector relay.
Fiche n° 60 2/2
6
Ensure the bargraphs operate correctly
9Fiche n° 60 2/2
If
BG 9LH is extinguished when AC is requested, ensure the continuity and insula-
tion of the connection between track 11 of the diesel computer connector and
track 20 of the AC computer connector.
NOTES
Bargraph 10 LH side
Warning light control
XR25 aid :BG 10LH is illuminated if the warning light on the instrument panel
is controlled. This bargraph is normally illuminated; it extinguishes
when the engine is running if there is no fault.
10Fiche n° 60 2/2
None
NOTES
13-28

DPCF01 1.0
LUCAS DIESEL INJECTION
Fault finding - Fault charts
13
Carry out a road test then check using the XR25.AFTER REPAIR
If the fault persists, check the fuel supply circuits (for the pump and the injectors).
If necessary, carry out a complete check of the engine (starter drive speed, pump timing, condition of
injectors, rocker arm clearances, compression, .....).NOTES
Chart 4STARTING FAULT (ENGINE WILL NOT START OR IS DIFFICULT TO
START) (warning light extinguished).
Only consult this customer complaint after a complete check using the XR25.
If no fault is shown by the XR25, ensure that the fault is not caused by a faulty immobiliser system.
Check the operation of the preheating system:
Start command mode G10*1* and check for a voltage at the plugs.
If the plugs are not fed, check the connection of the 3 track connector on the relay unit and the condition
of the 70 Amp fuse on the engine connection unit.
13-41

DPCF01 1.0
LUCAS DIESEL INJECTION
Fault finding - Fault charts
13
Carry out a road test then check using the XR25.AFTER REPAIR
NOTES
Chart 6VEHICLE PRODUCES BLACK SMOKE AT ALTITUDE
Only consult this customer complaint after a complete check using the XR25.
Measure the resistance of the altimetric corrector at the 10 track pump connector (between tracks 1 and
6).
Replace the altimetric corrector if the resistance is not approximately 15 ohms.
Ensure the continuity of the connection between track 1 on the pump connector, wiring side, and track 5
on the altimetric connector control relay (position H on the relay plate in the engine connection unit).
Ensure the presence of earth on track 6 of the pump connector, wiring side.
13-43

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

Check the insulation and continuity of the line:
Computer 52 L5 Fuel pump relay
Repair if necessary.
NOTE : If there is a short circuit on this line, check all the users of this feed.
Check the insulation, continuity and that there is no interference resistance on the line:
Computer 48 L2 Fuel pump relay
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 8 LH side illuminated or flashingFiche n° 27 side 1/2
FUEL PUMP CIRCUIT
XR25 aid:*08 = ignore this information
CO, CC- or CC+ line 48
CO line 52
8
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.
If the fuel pump relay still does not click, replace the fuel pump relay.
If BG 8LH is flashing, erase the computer memory using G0**. Try to start the
engine. If BG 6LH is now permanently illuminated or flashing, deal with this fault. In
certain cases, BG 13RH is illuminated, which must be ignored if ADAC is not present.
Enter the fuel pump relay command mode : G10*.
Does the fuel pump relay click?
The fuel pump
relay does not
clickCheck the presence of 12 volts on track L1 on the fuel pump relay mounting.
If necessary, repair the line to the 15 A fuse.
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.
If the fault persists, replace the fuel pump relay.
The fuel pump
relay clicksCheck the presence of 12 volts on track L3 on the fuel pump relay mounting.
If necessary, repair the line to the 30 A fuse.
17-20

Connect the bornier in place of the computer and check the insulation and continuity of the line :
Computer 30 2 Injectors 1 and 4
Computer 4 2 Injectors 2 and 3
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 11 LH side illuminated or flashingFiche n° 27 side 1/2
INJECTOR CIRCUIT
XR25 aid:*11 = XX.CO=> CO or CC- line 30 or 4 on the computer
*11 = XX.CC=> CC+ line 30 or 4 on the computer

11
XX = 14 => Cylinder 1 or 4 line 30 on the computer
XX = 23 =
> Cylinder 2 or 3 line 4 on the computer
If BG 11LH is flashing, erase the computer memory using G0**. Try to start the
engine. If BG 11LH is now permanently illuminated or flashing, deal with this fault. NOTES
When the ignition is switched on and during the timed phase, check for 12 V on track 1 of the faulty
injector.
If necessary, repair the line from track 1 injector to track L5 fuel pump relay.
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 faulty injector.
NOTE : Check the insulation and continuity of the lines for the other injectors and also check the
resistance of these injectors.
17-21

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 13 RH side illuminated or flashingFiche n° 27 side 1/2
ADAC CIRCUIT
XR25 aid:False diagnosis by computer for vehicles not fitted with ADAC

13
This vehicle is not fitted with ADAC at the moment.
If another bargraph is illuminated, refer to the fault finding for that bargraph.NOTES
If your vehicle has ADAC,
this method of fault finding will not be of use for this fault.
This bargraph is often illuminated or flashing in the following cases:
-Air conditioning compressor command mode G12*.
-Fault on fuel pump relay circuit.
-Other cases, which have not yet been noted, may well exist.
17-24