Mitsubishi 3000GT 1991, Service Manual

Page: 1133 / 1146

FULL AUTO AIR CONDITIONER
Troubleshooting
<Inside/outside air selector damper drive motor>
Air conditioner
Air conditioner control unit control panel
Comparator
Inside/outside air selector
damper drive motor
Troubleshooting Hints
l
Air conditioner control unit terminal voltages
Terminal No.
22
23
24
25
31
32
Signal name
Inside/outside-air selector
damper drive motor
Condition Terminal voltage
Inside-air switch ON 0.5
(Output turns OFF 40 seconds after the damper
moved to inside air position.)
Outside-air switch ON
(Output turns OFF 40 seconds after the damper
moved to outside air position.)
damper drive FACE switch ON 0.5 v
(Output turns OFF 40 seconds after the damper
moved to FACE position.)
DEF. switch ON
(Output turns OFF 40 seconds after the damper
moved to DEF. position.)
Inside/outside-air selector
damper drive motor
Inside-air switch ON
(Output turns OFF 40 seconds after inside air
has been activated.)
Outside-air switch ON
(Output turns OFF 40 seconds after outside air
has been
Air mix damper drive motor Temperature is set at 17°C
(Output turns OFF 40 seconds after the damper
moved to MAX. COOL position.)
Temperature is set at
(Output turns OFF’40 seconds after the damper
moved to MAX. HOT position.)
Air mix damper drive motor Temperature is set at 17°C
(Output turns OFF 40 seconds after the damper
moved to MAX. COOL position.)
Temperature is set at
(Output turns OFF 40 seconds after the damper
moved to MAX. HOT position.)
damper drive
FACE switch ON
(Output turns OFF 40 seconds after the damper
moved to FACE position.)
DEF. switch ON
0.5 v
(Output turns OFF 40 seconds after the damper
moved to DEF. position.)
TSB Revision