Mitsubishi Stealth 1994 Import Service Manual page 1248

24-56
FULL AUTO AIR CONDITIONING - Troubleshooting
7. Inspection of air conditioning power transistor and blower motor relay circuits
Ignition Blower motor
switch IGZ relav
Troubleshooting Hints
l
Air conditioning control unit terminal voltages
Terminal No.
51 Air conditioning power
transistor collector
52 Air conditioning power
transistor base
Blower motor HI relay
Air conditioning
control panel
Air condi-
transistor
Signal name
Switch is turned OFF.
Switch is placed in LO.
Switch is placed in HI.
Blower switch is turned OFF.
Blower switch is placed in LO.
Blower switch is placed in HI.
Fan switch HI is ON.
Fan switch in ME, LO, or OFF.
Air conditionina control unit
Condition
Terminal voltage
Battery positive
voltage
Approx. 7 V
o v
o v
Approx. 1.3 V
Approx. 1.2 V
1.5 V or less
Battery positive
voltage