fuse MITSUBISHI MONTERO 2000 Service Owner's Manual

CHASSIS ELECTRICAL -RV Meter54A-17
Termi-Input/out-
t
Signal sym-
bl
Terminal
lt
Harness problemTrouble symptoms when there is a
hblnal No.
p
put
gy
bolvoltage
(V)Open
circuitshort-cir-
cuit
yp
harness problem
11 - 1 4––––––
15Input/out-
putK (engine
K-LINE
signal)Hi: Sys-
tem volt-
age
Lo:0 - 1ExistsExistsDWiring communication error
DCommunication between the
engine-A/T-ECU hicles> is not possible.
DAbnormal driving information
numerical display
16––––––
17Input/out-
putM-BUSY
(AUDIO)Hi:System
voltage
Lo:0 - 1ExistsExistsDAudio information does not
appear on the screen.
18–SHIELD-
EARTH
(AUDIO)––––
19Input/out-
putM-BUSY
(A/C)Hi:System
voltage
Lo:0 - 1ExistsExistsDAir conditioner information does
not appear on the screen.
DAmbient temperature is not
displayed.
20–SHIELD-
EARTH––––
22 - 21––––––
23InputAmbient
temperature
sensor–ExistsExistsDAmbient temperature is not
displayed.
24InputILL + (Light-
ing switch)Hi:System
voltage
Lo:0 - 1ExistsExistsDoes not illuminate.
25InputACC (ACC
power sup-
l)
System
voltageExists–Screen does not appear. No
operations are possible.
pp
ply)
g
–ExistsBlown multi-purpose fuse
26Input+BSystem
voltageExists–Screen does not appear. No
operations are possible.
g
–ExistsBlown multi-purpose fuse
27InputVSS (Vehicle
speed pulse
signal)Hi:System
voltage
Lo:0 - 1ExistsExistsDAbnormal “Distance km after
replacement” display in mainte-
nance screen
DSwitches which are not
supposed to operate during
driving do operate.
(Example:clock adjustment
screen, maintenance settings,
etc.)
DAmbient temperature display is
abnormally high.
28–Earth–Exists–Screen does not appear.


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HEATER, AIR CONDITIONER AND VENTILATION - Troubleshooting55A-4
TROUBLESHOOTING
Trouble symp-
tomProbable causeRemedyRefer-
ence
page
The air condi-Malfunction of fuseReplace the fuse.–
tioner does notMalfunction of harness or connectorRepair the harness or connector.–work.
Refrigerant leak or overfilling of refrigerantReplenish the refrigerant, repair the leak
or take out some of the refrigerant.–
A/C compressor relay is defective.Replace the A/C compressor relay.55A-18
The A/C compressor magnetic clutch is
defective.Replace the A/C compressor.55A-10
The dual pressure switch is defective.Replace the dual-pressure switch.55A-10
The A/C switch is defective.Replace the heater control assembly.55A-24
The blower switch is defective.Replace the heater control assembly.55A-24
The air thermo sensor is defective.Replace the automatic compressor-ECU
and the air thermo sensor assembly.55A-31
The automatic compressor-ECU is defec-
tive.Replace the automatic compressor-ECU
and the air thermo sensor assembly.55A-6
The engine-ECU is defective.Replace the engine-ECU.–
When the A/C
is operating,Refrigerant leakReplenish the refrigerant and repair the
leak.–
temperature
inside the pas-The dual pressure switch is defective.Replace the dual-pressure switch.55A-10inside the pas-
senger
The condenser fan relay is defective.Replace the condenser fan relay.55A-18compartment
doesn’t de-
A/C compressor relay is defective.Replace the A/C compressor relay.55A-18
crease (cool
air is not
emitted).The A/C compressor magnetic clutch is
defective.Replace the A/C compressor.55A-10
When the A/C
is operating,
temperature
inside the pas-
senger
compartment
doesn’t in-
crease (warm
air is not
emitted).Malfunction of the air thermo sensorReplace the automatic compressor-ECU
and the air thermo sensor assembly.55A-31
The blowerMalfunction of fuseReplace the fuse.–
motor does notMalfunction of harness or connectorRepair the harness or connector.–run.
The blower relay is defective.Replace the blower relay.55A-18
The blower motor is defective.Replace the blower motor.55A-29
The blower switch is defective.Replace the heater control assembly.55A-24
Malfunction of the resistorReplace the resistor.55A-29
The automatic compressor-ECU is defec-
tive.Replace the automatic compressor-ECU
and the air thermo sensor assembly.55A-6


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HEATER, AIR CONDITIONER AND VENTILATION - Troubleshooting55A-7
TROUBLESHOOTING
Trouble symp-
tomProbable causesRemedyRefer-
ence
page
The rear cool-Malfunction of fuseReplace the fuse.–
er does notMalfunction of harness or connectorRepair the harness or connector.–operate.
Refrigerant leak or overfilling of refrigerantReplenish the refrigerant, repair the leak
or take out some of the refrigerant.–
Malfunction of the rear A/C switchReplace the rear A/C switch.55A-32
Malfunction of the front rear fan switchReplace the front rear fan switch.55A-33
Malfunction of the air thermo sensorReplace the air thermo sensor.55A-39
Malfunction of the rear blower relayReplace the rear blower relay.55A-18
The rear blower motor is defective.Replace the rear blower motor.55A-40
The rear cooler control unit is defective.Replace the rear cooler control unit.55A-34
When the rear
cooler is oper-
ating, temper-
ature inside
the passenger
compartment
does not de-
crease(cool air
is not emitted).Refrigerant leakReplenish the refrigerant and repair the
leak.–
When the rear
heater is oper-
ating, temper-
ature inside
the passenger
compartment
does not in-
crease(warm
air is not
emitted).Malfunction of the air thermo sensorReplace the air thermo sensor.55A-39
The blowerMalfunction of fuseReplace the fuse.–
motor does notMalfunction of harness or connectorRepair the harness or connector.–run.
Malfunction of the rear blower relayReplace the blower relay.55A-18
The rear blower motor is defective.Replace the blower motor.55A-40
Malfunction of the rear A/C switchReplace the rear A/C switch.55A-32
Malfunction of the front rear fan switchReplace the front rear fan switch.55A-33
Malfunction of the resistorReplace the resistor.55A-35
The rear cooler control unit is defective.Replace the rear cooler control unit.55A-34
The blowerMalfunction of fuseReplace the fuse.–
motor does notMalfunction of harness or connectorRepair the harness or connector.–stop running.
Malfunction of the rear A/C switchReplace the rear A/C switch.55A-32
Malfunction of the front rear fan switchReplace the front rear fan switch.55A-33
Malfunction of the resistorReplace the resistor.55A-35
The rear cooler control unit is defective.Replace the rear cooler control unit.55A-34


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