Mitsubishi 3000GT Service Manual page 1275

FULL AUTO AIR CONDITIONING - Troubleshooting
Inspection item
Fuse
Harness (incl. connectors)
Magnetic clutch relay
Magnetic clutch
Sensors
A/C engine coolant
temperature switch
Pressure switch
Air conditionia control panel
Refrigerant amount
Receiver
Expansion valve
Compressor
Thermostat
A/C compressor lock controller
Air conditioning control unit
MFI control unit
On-board diagnostic outputs
Blend air damper motor and
potentiometer
Heater link
Heater relav
Power transistor
310wer motor
310wer motor relay
NOTE
Numbers indicate the order of inspection.
(1)
Use an analog voltmeter or multi-use tester to check the control unit.
(2)
7 8
Condenser fan
Mode selection
does not operate
damper does not
operate. when the air
conditioning is
activated.
1
3
4
I
I
5
1
I
2
2
3
4
9 10
Air-conditioning Air conditioning
graphic display control panel
does not function blinks.
correctly.
I 1
2
2
3
3
1
I
4
4
5
6
1 ~ -~--~I
11
Set temperature
returns to 25°C
(122°F) when the
ignition switch is
turned ON and
OFF.
1
2
3