1998 RENAULT KANGOO Heating And Ventilation Workshop Manual

c11010.0
AIR CONDITIONING
Fault finding - Interpretation of XR25 bargraphs62
KANGOO
ALL TYPES
Enter G0** on the XR25.
Check that the system operates correctly.AFTER
REPAIR
Left-hand bargraph 1 illuminated
COMPUTER FAULT

1
None.NOTES
Fiche n° 61
Change the air conditioning control unit.
62-6

c11010.0
AIR CONDITIONING
Fault finding - Interpretation of XR25 bargraphs62
KANGOO
ALL TYPES
You may begin the fault finding procedure.AFTER
REPAIR
Right-hand bargraph 1 extinguished
XR25 / CONTROL UNIT COMMUNICATION
1
None.NOTES
Fiche n° 61
Before establishing communication between the XR25 and the control unit, check that you have switched
on the ignition.
Ensure that the XR25 is not the cause of the fault by trying to communicate with a computer on another
vehicle.
Check that the ISO interface is in position S8 and that you are using the latest version of the XR25 cassette
and the correct access code (D 17).
Check the battery voltage (U > 10.5 volts). Recharge the battery if necessary.
Check that the control unit connectors are engaged correctly.
Check that the air conditioning control unit is supplied correctly:
- earth on track 4 of the red 15-way connector
-+ after ignition on track 1 of the blue 30-way connector
-+ after ignition on track 6 of the red 15-way connector
-+ fuse board on track 5 of the red 15-way connector
Check that the diagnostic socket is supplied correctly:
track K track 6of the air conditioning control unit
track L track 3blue 30-way connector
If there is still no dialogue between the XR25 and the control unit, change the air conditioning control
unit.
62-7

c11010.0
AIR CONDITIONING
Fault finding - Interpretation of XR25 bargraphs62
KANGOO
ALL TYPES
Enter G0** on the XR25.
Check that the system operates correctly.AFTER
REPAIR
Left-hand bargraph 2 illuminated
COOLANT SENSOR
XR 25 assistance: *02 : 2 def = low level
1 def = high level
2
None.NOTES
Fiche n° 61
Low level
Check the continuity and insulation from earth of the electrical wiring between tracks A, B and C of the
sensor and tracks 9, 10 and 11 of the air conditioning control unit 30-way connector (sensor supplied with
5 V).
Repair the faulty electrical wiring.
Connect the XR25 and enter # 16. Measure the coolant pressure. The low pressure should be less than or
equal to 2 bars.
Is it correct?
Change the coolant pressure sensor.YES
NOTop up the coolant.
Check that the coolant sensor connector is correctly engaged.
Engage the connector correctly if necessary.
62-8

c11010.0
AIR CONDITIONING
Fault finding - Interpretation of XR25 bargraphs62
KANGOO
ALL TYPES
Enter G0** on the XR25.
Check that the system operates correctly.AFTER
REPAIR
2
High level
Change the coolant pressure sensor.YES
NOTop up the coolant.
CONT
Check that the coolant sensor connector is correctly engaged.
Engage the connector correctly if necessary.
Check the condition of the electrical wiring between tracks A, B and C of the sensor and tracks 9, 10 and
11 of the air conditioning control unit 30-way connector (sensor supplied with 5 V).
Repair the faulty electrical wiring.
Connect the XR25 and enter # 16. Measure the coolant pressure. The high pressure should be less than or
equal to 28 bars.
Is it correct?
62-9

c11010.0
AIR CONDITIONING
Fault finding - Interpretation of XR25 bargraphs62
KANGOO
ALL TYPES
Enter G0** on the XR25.
Check that the system operates correctly.AFTER
REPAIR
Left-hand bargraph 4 illuminated
COMPRESSOR CONTROL
XR25 assistance :C.O.open circuit
C.C.1short circuit to 12 volts
4
Before any removal, enter G0** on the XR25 and reinitialise the system.NOTES
Fiche n° 61
YES
YES Change the clutch.
Refer to Left-hand bargraph 4 illuminated, CONT 1.NO
NO Top up the coolant circuit.
Repair the circuit if necessary.
If left-hand bargraph 4 remains permanently illuminated, change
the clutch.
If left-hand bargraph 4 still remains permanently illuminated,
change the compressor.
Using the XR25, check the pressure of the circuit (# 16).
At an ambient temperature of approximately 20 °C, a pressure of between 2 and
28 bars should be measured.
Is the pressure between these values?
Enter G21* on the XR25 to control the compressor.
Does the compressor cut in?
62-10

c11010.0
AIR CONDITIONING
Fault finding - Interpretation of XR25 bargraphs62
KANGOO
ALL TYPES
Enter G0** on the XR25.
Check that the system operates correctly.AFTER
REPAIR
4
CONT 1
YES
NO
Check that 12 volts is present on track 1 of the clutch connector.
Is 12 volts present?
Check the condition of the compressor earth.
Is the compressor earth in good condition?
YES Check the continuity and absence of short circuits of the electrical
wiring between the clutch and the compressor.
If the electrical wiring is faulty, repair it.
If the electrical wiring is in good condition, change the compressor.
NO Repair the compressor earth.
Check the continuity and absence of short circuits of the electrical wiring
between track 1 of the clutch and tracks 2 and 17 of the air conditioning control
unit 30-way connector.
Repair the electrical wiring if necessary.
For petrol vehicles:
Use the XR25 fiche which corresponds to the vehicle.
With the engine running, operate the AC then check on the XR25 fiche whether
the "Compression authorised or prohibited" status bargraph is illuminated.
Is the bargraph illuminated?
YES Check and repair the electrical wiring.
NO Refer to Left-hand bargraph 4 illuminated, cont 2.
62-11

c11010.0
AIR CONDITIONING
Fault finding - Interpretation of XR25 bargraphs62
KANGOO
ALL TYPES
Enter G0** on the XR25.
Check that the system operates correctly.AFTER
REPAIR
4
CONT 2
YES
NO
For petrol vehicles:
Use the XR25 injection fiche which corresponds to the vehicle.
With the engine running, operate the AC then check on the XR25 fiche whether the " AC authorisation"
status bargraph is illuminated.
Is the bargraph illuminated?
There is a problem at the injection end.
Refer to the injection fault finding procedure which corresponds to the vehicle.
Check the continuity and absence of short circuits of the electrical wiring.
Repair if necessary.
Check that 12 volts is present on tracks 2 and 17 of the air conditioning control
unit 30-way connector.
Is 12 volts present?
YES There is a problem at the injection end.
Refer to the injection fault finding procedure which corresponds to
the vehicle.
NO Check whether the evaporator temperature sensor is in place.
Check its resistance: disconnect the evaporator temperature sensor
and measure the resistance at its terminals. The resistance measured
should be between 90 ohms and 13.7 kohms.
If the evaporator temperature sensor is in good condition, change
the air conditioning control unit.
If the evaporator temperature sensor is not in good condition,
change it.
62-12

Check the continuity and insulation from earth and from 12 volts of the electrical wiring between tracks:
air recirculation B2 27air conditioning control unit
motor connector B3 26 blue 30-way connector
Repair the faulty electrical wiring.
Check the condition of the electrical wiring between tracks:
control A2 3air conditioning control unit
panel red 15-way connector
Repair if necessary.
c11010.0
AIR CONDITIONING
Fault finding - Interpretation of XR25 bargraphs62
KANGOO
ALL TYPES
Enter G0** on the XR25.
Check that the system operates correctly.AFTER
REPAIR
Right-hand bargraph 4 illuminated
AIR RECIRCULATION MOTOR
4
This fault only appears on the XR25 if air recirculation is selected.NOTES
Fiche n° 61
Check the condition of the air recirculation flap control motor.
On the motor connector, measure the resistance between the two tracks.
Change the recirculation motor if necessary.
If the fault persists, change the air conditioning control unit.
62-13