Mitsubishi MOTORS Space Runner 1998, Workshop Manual

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HEATER, AIR CONDITIONER AND VENTILATION
-
Troubleshooting
55-5
TROUBLESHOOTING
55200070389
TROUBLESHOOTING PROCEDURES
Trouble symptom Problem cause Remedy Reference
page
When the ignition Fuse is defective Replace the fuse -
switch is “ON”,
the A/C does not Harness or connector is defective
Repair the harness or connector -
operate
A/C compressor relay is defective Replace the A/C compressor
relay
55-17
A/C compressor magnetic clutch is defective Replace the armature plate, rotor
or clutch coil
55-8
Refrigerant leak or overfilling of refrigerant Replenish the refrigerant, repair
the leak or take out some of the
refrigerant
55-8
Dual pressure switch is defective Replace the dual pressure switch 55-9
A/C switch is defective Replace the blower switch as-
sembly
55-20
Blower switch is defective Replace the blower switch as-
sembly
55-20
Automatic compressor-ECU is defective Replace the automatic compres-
sor-ECU
55-7
Engine-ECU is defective Replace the engine-ECU -
When the A/C is
operating, tem-
Refrigerant leak Replenish the refrigerant and
repair the leak
55-8
perature inside
the passenger Dual pressure switch is defective
Replace the dual pressure switch 55-9
compartment
doesn’t decrease
(cool air is not
Automatic compressor-ECU is defective Replace the automatic compres-
sor-ECU
55-7
emitted)
Engine-ECU is defective Replace the engine-ECU -
Blower fan and Fuse is defective Replace the fuse -
motor do not turn
Harness or connector is defective Repair the harness or connector -
Blower relay is defective Replace the blower relay 55-17
Blower fan and motor are defective Replace the blower fan and
motor
55-26
Resistor (for blower motor) is defective Replace the resistor 55-24
Blower switch is defective Replace the blower switch as-
sembly
55-20