1998 RENAULT KANGOO Heating And Ventilation Workshop Manual

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

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?
c11010.0
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.
62-40

Check the continuity and insulation from 12
volts of the electrical wiring
between:
air 22 F2 low speed
conditioning relay
computer 23 M2 high speed
relay
Is the wiring in good condition?
c11010.0
AIR CONDITIONING
Fault finding charts
62
KANGOO
ALL TYPES
AFTER
REPAIR
CHART 15COOLING FAN DOES NOT OPERATE
NOTES
yes
noRepair the faulty
electrical wiring.
noChange the faulty relay(s).
yes
noRepair.
yes
A
Non regulated air conditioning.
The compressor operates.
Check the condition of the fuses.
Change them if necessary.
Check that 12 volts is present on track 5 of the
low speed and high speed relays.
Is this correct?
Check that the fan assembly is correctly
supplied with 12 volts and 0 volt.
Is this correct?
Check that the components which were removed are connected correctly.
Check that the system operates correctly.
62-41

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?
c11010.0
AIR CONDITIONING
Fault finding charts
62
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.
62-42

c11010.0
AIR CONDITIONING
Fault finding - Associated checks
62
KANGOO
ALL TYPES
COMMAND MODE G--*
To use this function, enter G on the XR25 keypad, then the number of the command selected followed by
an asterisk.
G21* : compressor clutch control
G22* : fan low speed control
G23* : fan high speed control
G24* : recirculation motor control
G13* : end of fault finding
COMMAND MODE #
# 08 : fan assembly speed
# 15 : engine speed
# 16 : pressure of coolant in the circuit
62-43

AIR CONDITIONING
Wiring diagram
62D7F ENGINE
PRO13781
62-44

AIR CONDITIONING
Wiring diagram
62F8Q ENGINE
PRO13948
62-45