Mitsubishi 3000GT Service Manual page 1279

FULL AUTO AIR CONDITIONING - Troubleshooting
No. Symptom
9 Air-conditioning graph-
ic display does not
function correctly
10 Air conditioning con-
trol panel blinks.
Set temperature re-
turns to 25°C (112°F)
when the ignition
switch is turned ON
and OFF.
Probable cause
Open-circuited harness between
control panel and air conditioning
control unit
Defective control panel
Defective air conditioning control unit
Wet compressor drive belt
Insufficient compressor drive belt
tension
Defective compressor drive belt
Defective compressor
Defective revolution pick-up sensor
Defective air conditioning switch
Defective A/C compressor lock con-
troller
Defective MFI control unit
Open-circuited power circuit harness
Defective air conditioning control unit
Ref. page
Remedy
Correct harness.
Replace control panel.
Replace air condition-
ing control unit.
Check and adjust. GROUP 11
Replace.
55-17, 39
Check and replace.
Check and replace.
Replace air condition-
ing control panel.
Replace A/C compres-
sor lock controller.
Replace air condition-
ing control unit.
Replace MFI control
unit.
Correct harness.
Replace air condition-
ing control unit.
55-59