
FULL-AUTOMATIC AIR CONDITIONER –
Troubleshooting
55-41
INSPECTION CHART FOR TROUBLE SYMPTOMS
Trouble symptom
Inspection proce-
dure No.
Reference page
Communication with the MUT-
II
is not possible.
1
55-42
Air conditioner does not operate.
2
55-43
A/C graphic display on control panel is blank.
3
55-44
Temperature cannot be set.
4
55-44
A/C outlet air temperature does not increase.
5
55-44
A/C outlet air temperature does not decrease.
6
55-44
Blower does not operate.
7
55-45
Blower does not operate in HI mode.
8
55-46
Blower air amount cannot be changed.
9
55-47
Air outlet port cannot be changed.
10
55-47
Inside/outside air changeover is not possible.
11
55-48
Defroster function does not operate.
12
55-49
Condenser fan does not operate.
13
55-50
Rear defogger does not operate.
14
55-51
A/C-ECU power supply circuit check
15
55-52
A/C compressor control circuit check
16
55-53