Mitsubishi Stealth 1994 Import Service Manual page 1200

HEATERS AND MANUAL AIR CONDITIONING - Troubleshooting
Terminal
No.
Auto compressor control unit ground
8. 9
1 Auto compressor control unit power
Air conditioning compressor relay
Air conditioning switch: A/C
Air conditioning switch: ECONO
Air-inlet sensor 0
23
26 Air-inlet sensor 0
TROUBLESHOOTING HINTS
Inspection of Air Conditioning Control Unit
Disconnect the amplifier and inspect the connector on the wire
harness side as shown in the chart below.
Test Conditions:
(2) Air conditioning switch: ON
(3) Temperature control lever: MAX. COOL
(4) Blower switch: HI
Signal
Conditions
At all times
When ignition switch is ON
When all conditions for switch-ON of
the compressor are satisfied
When air conditioning switch pressed in
to second step
When air conditioning switch pressed in
to first step
Ignition switch, blower switch and air
conditioning switch: ON
Ignition switch, blower switch and air
conditioning switch: ON
Ignition switch, blower switch and air
conditioning switch: ON
Ambient temperature: 4°C (39°F)
Ignition switch, blower switch and air
conditioning switch: ON
Ambient temperature: 4°C (39°F)
Terminal
voltage
o v
Battery
positive
voltage
Battery
positive
voltage
Battery
positive
voltage
Battery
positive
voltage
Approx.
Approx.
IV
o v