Mitsubishi MOTORS Space Runner 1998, Workshop Manual

Page: 1133 / 1164

HEATER, AIR CONDITIONER AND VENTILATION
-
Troubleshooting
55-7
INSPECTION AT THE AUTOMATIC COMPRESSOR-ECU TERMINAL
55201030096
Terminal
No.
Check item Checking requirements Normal condition
1 Earth Always 0 V
2 - - -
3 Input from air thermo sensor to
Automatic compressor-ECU
Air thermo sensor detection tempera-
ture: 5 _ C
1.1 V
4 Automatic compressor-ECU power
supply (IG2)
Ignition switch: ON Battery voltage
5 Output from ECU to A/C compressor A/C compressor relay: OFF Battery voltage
relay
A/C compressor relay: ON 0 V
6 Air thermo sensor earth Always 0 V
7-10 - - -
11 Input from A/C switch to Automatic A/C switch: OFF 0 V
compressor-ECU
A/C switch: ON Battery voltage
12 Output from ECU to engine-ECU Air thermo sensor detection tempera-
ture: 5 _ C or less
Battery voltage
Air thermo sensor detection tempera-
ture: 8 _ C or more
0 V