heating RENAULT KANGOO 1998 KC / 1.G Heating And Ventilation User Guide

AIR CONDITIONING
General
62
A Passenger compartment
B Engine compartment
C Exterior air
D To air mixing unit
E Scuttle panel grille
F Exterior or recirculated air
1 Compressor with variable capacity
2 Condenser
3 Dehydration canister
4 Pressure sensor
5 High pressure valve
6 Pressure relief valve
7 Evaporator
8 Low pressure valve
9 Heating/ventilation fan
10 Cooling fan
11 Engine radiator
12 High pressure fluid
13 Low pressure vapour
14 High pressure vapour
Consumables:
- Compressor oil
SANDEN SP 10: 135 cm3 ± 15
- Coolant
R134a: 650 g ± 35
- Compressor
SANDEN SD 7V 16
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AIR CONDITIONING
Fault finding - Introduction
62
KANGOO
ALL TYPES
ESTABLISHING XR25 / HEATING-VENTILATION CONTROL UNIT DIALOGUE
- Connect the XR25 to the diagnostic socket.
- ISO selector on S8
- Enter D17 n.61
PRECAUTION :
When carrying out checks using a multimeter, avoid using a contact tip on the connectors the size of which
could damage the clips and result in poor contact.
ERASING THE MEMORY:
After repairing the air conditioning system, enter G0** on the XR25 keypad to erase the fault stored.
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AIR CONDITIONING
Fault finding - Customer complaints
62
KANGOO
ALL TYPES
CHART 1
CHART 2
CHART 3
CHART 4
CHART 5
CHART 6
CHART 7
CHART 8
PASSENGER COMPARTMENT FAN DOES NOT OPERATECHART 9
PASSENGER COMPARTMENT INCONVENIENCE
Controls stiffCHART 10
RECIRCULATION FLAP DOES NOT OPERATECHART 11
No cold air
Too cold
Performance poorCHART 12
CHART 13
CHART 14
AIR CONDITIONING PROBLEMS
CHART 15 COOLING FAN ASSEMBLY DOES NOT OPERATE
Air distribution problem
Air flow problem
Heater performance poor
No heat
Too hot
Heating inadequate in the rear
Deicing/demisting performance poor
Ventilation performance poor
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AIR CONDITIONING
Fault finding charts
62
KANGOO
ALL TYPES
Check that the system operates correctly.AFTER
REPAIR
no
CHART 3HEATER PERFORMANCE POOR
NOTES
yes
Advise the customer how to use the heating
system correctly
(eg. : Do not place the passenger
compartment fan on full when starting from
cold, turn it up gradually instead).
Carry out a road test to observe the customer
complaints.
Is the test satisfactory?
yes
A
yes
yes
noSee CHART 1.
no
noEnd of fault finding.
Before carrying out any work, check that the customer uses the air conditioning
correctly.
Non regulated air conditioning.
Visually check that
the action of the control moves
the mixing flap.
Does the flap move?
Visually check
whether the flap travel is complete.
Is it complete?
Check the cooling circuit
(correct filling and bleeding),
the condition of the circuit (pipes,
connections, conformity
of the circuit...).
Repair if necessary.
Does the fault persist?
Readjust the control cable
(cable which controls the sprockets to the
right of the air distribution unit).
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AIR CONDITIONING
Fault finding charts
62
KANGOO
ALL TYPES
AFTER
REPAIR
yes
CHART 6HEATING INADEQUATE IN THE REAR
NOTES
noFree the air outlets.
None.
Check that the air inlets at the rear of the
centre console are not blocked.
(floor carpet...).
Are they correct?
Remove the centre console and check
that the connection and sealing between the
air distribution unit and the heating duct to
the rear seats is correct.
Repair if necessary.
Check that the components which were removed are connected correctly.
Check that the system operates correctly.
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yes
Check the electrical wiring between:
air 2 1
conditioning compressor
computer 17 1
Is the wiring on good condition?
yes
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AIR CONDITIONING
Fault finding charts
62
KANGOO
ALL TYPES
AFTER
REPAIR
CHART 12AIR CONDITIONING PROBLEMS
No cold air
NOTES
noChange the control panel.
noRepair the wiring.
yes
noRepair the wiring.
yes
noChange the compressor.
Non regulated air conditioning.
The passenger compartment fan operates.
With the heating and ventilation selected,
check that there is a voltage
on track A1 of the control panel.
Is there a voltage?
Check the connections between track A1 of
the control panel and track 2
of the air conditioning computer.
Is the wiring in good condition?
Using the XR25, enter G21*
(compressor clutch control).
Does the compressor cut in?
Change the
air conditioning computer.
Check that the components which were removed are connected correctly.
Check that the system operates correctly.
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yes
Check the connections between:
air 9 A fluid
conditioning pressure
computer 10 B sensor
Is the wiring in good condition?
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AIR CONDITIONING
Fault finding charts
62
KANGOO
ALL TYPES
AFTER
REPAIR
no
CHART 12AAIR CONDITIONING PROBLEMS
No cold air
NOTES
yesRefer to left-hand bargraph 13.
noTop up the coolant circuit.
yes
noRepair the faulty
electrical wiring.
Change the pressure sensor.
Non regulated air conditioning.
The passenger compartment fan operates.
Check that left-hand bargraph 13 is
extinguished. This relates to the inhibiting of
heating/ventilation/air conditioning by the
injection or the automatic gearbox.
Is this bargraph extinguished?
Using the XR25, measure the pressures of the
coolant circuit by entering #16 or use
pressure gauges.
The pressures should be:
- high pressure < 28 bars,
- low pressure > 2 bars.
Is this correct?
Check that the components which were removed are connected correctly.
Check that the system operates correctly.
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yes
Check the electrical wiring:
air 9 1 pressure
conditioning 10 4 sensor
computer 11 3 connector
and between the connector and the sensor.
Is the wiring in good condition?
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AIR CONDITIONING
Fault finding charts
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KANGOO
ALL TYPES
AFTER
REPAIR
CHART 14AAIR CONDITIONING PROBLEMS
Performance poor
NOTES
yesSee CHART 14.
no
no
If the fault persists,
change the compressor.
yes
noRepair the faulty
electrical wiring.
yes
noTop up the coolant circuit.
Change the pressure sensor.
Before carrying out any work, check that the customer uses the air conditioning
correctly.
Non regulated air conditioning.
With the air conditioning and ventilation on
maximum and the engine running at idle,
check that the compressor operates.
Does the compressor operate?
Connect the XR25 and enter G21*
(direct compressor control).
Does the compressor operate?
Check the pressure of the coolant circuit.
The compressor should cut in for:
- low pressure≥ 2 bars,
- high pressure≤ 28 bars.
Is this correct?
Check the wiring between
the heating and ventilation computer
and the compressor clutch.
Repair if necessary.
Check that the components which were removed are connected correctly.
Check that the system operates correctly.
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Check the electrical wiring between:
air 9 1 pressure
conditioning 10 4 sensor
computer 11 5 connector
and between the connector and the sensor.
Is the electrical wiring in good condition?
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AIR CONDITIONING
Fault finding charts
62
KANGOO
ALL TYPES
AFTER
REPAIR
yes
CHART 14BAIR CONDITIONING PROBLEMS
Performance poor
NOTES
no
yes
noRepair the faulty electrical wiring.
yes
noTop up the coolant.
Change the pressure sensor.
Before carrying out any work, check that the customer uses the air conditioning
correctly.
Non regulated air conditioning.
Check the operation of the fan assembly.
Connect the XR25 and enter G22* and G23*
(direct fan assembly control).
Does the fan assembly operate
at low and high speed?
Check the pressure of the coolant circuit.
The fan assembly should be:
- operating for a pressure≥ 10 bars,
- stopped for a pressure≥ 20 bars.
Is this correct?
Check the electrical wiring
between tracks 22 and 23 of the heating and
ventilation computer and the fan assembly.
Repair if necessary.
If the fault persists,
change the fan assembly.
Check that the components which were removed are connected correctly.
Check that the system operates correctly.
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yes
Check the electrical wiring between:
heating and 9 1 inter-
ventilation 10 4 mediate
computer 11 3 connector
and between:
inter- 1 A pressure
mediate 4 C sensor
connector 3 B
Is the wiring in good condition?
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AIR CONDITIONING
Fault finding charts
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KANGOO
ALL TYPES
AFTER
REPAIR
CHART 15
CONT
A
noTop up the coolant circuit.
yes
noRepair the faulty
electrical wiring.
With the air conditioning selected and
ventilation on maximum, check the pressure
of the coolant circuit using the XR25 by
entering #16.
- The fan cuts in at low speed for a pressure
≥ 10 bars,
- The fan cuts in at high speed for a pressure
≥ 20 bars.
Are the pressure values correct?
Change the pressure sensor.
If the fault persists,
change the fan.
Check that the components which were removed are connected correctly.
Check that the system operates correctly.
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