RENAULT KANGOO 1998 KC / 1.G Heating And Ventilation Service Manual

c11010.0
AIR CONDITIONING
Fault finding charts
62
KANGOO
ALL TYPES
AFTER
REPAIR
CHART 9
CONT
A
no
yes
Repair the electrical wiring.
yes
Change the resistor unit.
noChange the fan.Supply the fan with 0 and 12 V.
Does the fan operate?
Check the condition of the electrical wiring
between the the fan and tracks A1 and A2 of
the resistor unit connector at the fan end.
Is the wiring in good condition?
Check that the components which were removed are connected correctly.
Check that the system operates correctly.
62-30

c11010.0
AIR CONDITIONING
Fault finding charts
62
KANGOO
ALL TYPES
AFTER
REPAIR
yes
CHART 10CONTROLS STIFF
(passenger compartment inconvenience)
NOTES
no
yes
Change the flap control cable.
None.
noEnd of fault finding.
Unclip the cable from the side
of the unit and check the stiffness of
movement of each component, control
button and flap control
on the air distribution unit.
Is it correct?
Check the travel of the control cable.
Remove any constraints
on it:
- bending,
- cable clamped with plastic clips.
Change it if necessary.
Does the fault persist?
Change the control panel or repair the
kinematic of the flap or change the air
distribution unit.
Check that the components which were removed are connected correctly.
Check that the system operates correctly.
62-31

Check the insulation and continuity of the
electrical wiring between:
computer 26 B3 resistance
blue 30-way unit
connector 27 B2 connector
Is the wiring in good condition?
yes
Check the condition of the electrical wiring
between:
control computer
panel A2 3 15-way
connector
Is the wiring in good condition?
yes
c11010.0
AIR CONDITIONING
Fault finding charts
62
KANGOO
ALL TYPES
AFTER
REPAIR
CHART 11RECIRCULATION FLAP DOES NOT OPERATE
NOTES
noRepair the faulty wiring.
noChange the control panel.
noRepair the faulty
electrical wiring.
yes
A
Before carrying out any work, check that the customer uses the air conditioning
correctly.
Non regulated air conditioning.
First of all check the condition of fuses
+battery, + fuse board, +after ignition.
Change them if necessary.
With the ignition on and air recirculation
selected, check that 12 V is present on track
A2 of the control panel.
Is 12 V present?
Check that the components which were removed are connected correctly.
Check that the system operates correctly.
62-32

c11010.0
AIR CONDITIONING
Fault finding charts
62
KANGOO
ALL TYPES
AFTER
REPAIR
CHART 11
CONT
yes
Change the recirculation motor.
A
noRepair the faulty
electrical wiring.
noEnd of fault finding.
yes
Check the electrical wiring between the
recirculation motor and the resistor unit.
Is it in good condition?
Check that the recirculation flap control
sprockets are in good condition and that the
flap is not jammed.
Repair if necessary.
Does the fault persist?
Check that the components which were removed are connected correctly.
Check that the system operates correctly.
62-33

yes
Check the electrical wiring between:
air 2 1
conditioning compressor
computer 17 1
Is the wiring on good condition?
yes
c11010.0
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.
62-34

yes
Check the connections between:
air 9 A fluid
conditioning pressure
computer 10 B sensor
Is the wiring in good condition?
c11010.0
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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c11010.0
AIR CONDITIONING
Fault finding charts
62
KANGOO
ALL TYPES
AFTER
REPAIR
CHART 13AIR CONDITIONING PROBLEMS
Too cold
NOTES
yes
no
noSee CHART 11.
yes
noSee CHART 1.
yes
noReadjust the cable.
yes
Change the fan assembly.
Before carrying out any work, check that the customer uses the air conditioning
correctly.
Non regulated air conditioning.
Is the fan assembly always operating?
(normal if high pressure ≥ 20 bars)
Check that the recirculation flap does not
remain in the recirculated air position.
Operate the control button
and check that the flap moves.
Does it move?
Check that the action of the
heater control
moves the flap.
Does it move?
Visually check that
the flap travel is complete.
Is it correct?
Check the coolant circuit pressures using the
XR25 or pressure gauges.
The fan assembly operates if the high
pressure ≥ 20 bars and stops if the pressure
≤15 bars.
If the pressures are correct, change
the pressure sensor, otherwise, top up
the coolant circuit.
Check that the components which were removed are connected correctly.
Check that the system operates correctly.
62-36

c11010.0
AIR CONDITIONING
Fault finding charts
62
KANGOO
ALL TYPES
AFTER
REPAIR
CHART 14AIR CONDITIONING PROBLEMS
Performance poor
NOTES
noSee CHART 14A.
noEnd of fault finding.
noSee CHART 11.
noEnd of fault finding.
Is it an air flow problem?yesSee CHART 2 or CHART 9.
no
A
yes
yes
yes
Before carrying out any work, check that the customer uses the air conditioning
correctly.
Non regulated air conditioning.
Check that the compressor operates, with the
air conditioning on, passenger compartment
ventilation on maximum in recirculation
mode, engine running at idle.
Does the compressor operate?
Check the tension of the compressor belt, the
clutch air gap and its condition.
Retension the belt or change
the compressor clutch.
Does the fault persist?
yes
Ensure that the recirculation flap is in the
recirculation position in air conditioning
recirculation mode.
Is it in this position?
Check that the flap travel is complete,
readjust the cable if necessary.
Does the fault persist?
Check that the components which were removed are connected correctly.
Check that the system operates correctly.
62-37

yes
c11010.0
CONDITIONING
Fault finding charts
62
KANGOO
ALL TYPES
AFTER
REPAIR
CHART 14
CONT
noTop up the coolant circuit.
yes
noSee CHART 15.
Change the pressure sensor.
Check the cleanness of the
condenser wiring harness.
Clean or change the condenser.
If the fault persists, check the operation of
the cooling fan assembly at high speed
(ventilation and air conditioning
on maximum).
It should be:
- operating if high pressure≥ 20 bars
- stopped if high pressure≤ 15 bars
Is the operation of the fan assembly normal?
Check that the components which were removed are connected correctly.
Check that the system operates correctly.
A
With the vehicle stationary, engine running
at idle, air conditioning on maximum,
measure the pressure of the coolant circuit.
If the pressure is > 28 bars, there is :
- too much fluid,
- or the operation of the fan assembly is ab-
normal,
- or the condenser is clogged,
- or the engine heats up too much.
Is the pressure < 28 bars ?
62-38

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?
c11010.0
AIR CONDITIONING
Fault finding charts
62
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.
62-39