Mitsubishi 1989-1993 GALANT Service Manual page 226

FUEL SYSTEM <SOHC-8 VALVE>
INSPECTION
Using Scan tool
Air conditioning switch
Function
Data reading 28
Air conditioning compressor clutch relay
Function
Data reading 49
HARNESS INSPECTION
AIR CONDITIONING INSPECTION
Refet to GROUP 55-Air conditioning.
Check conditions
Data display
Switch status . Engine idling (The air
conditioning com-
pressor should be ac-
tivated when the air
conditioning switch is
switched ON.)
Data display Check conditions
. Engine: idling after
Air condition-
ing compres-
sor clutch
relay status
Measure the power supply voltage of
the air conditioning circuit.
. Engine control module connector:
Disconnected
. ignition switch: ON
module harness
side connector
TSB Revision
Air conditioning switch
OFF
ON
Air conditioning switch
OFF
warm up
ON
Normal display
OFF
ON
Normal display
OFF (Compressor
clutch non-
activation)
clutch activation)
STOP
Check the
air condi-
tioning cir-
cuit.