Mitsubishi 3000GT Service Manual page 231

ELECTRICAL LOAD SWITCH
Engine control module connector
OPERATION
The electrical load switch inputs ON/OFF state of the switch of equipment that consumes much power
l
during idling, namely, equipment with a large electrical load, to the engine control module. Based
on this signal, the engine control module controls the idle air control motor.
When the switch of equipment with a large electrical load is turned ON, the battery voltage is applied
l
to the engine control module to indicate that the equipment switch is turned ON.
INSPECTION
Using Scan Tool
Item No.
Function
Data reading 33
MULTIPORT On-Vehicle Inspection of MFI
FUEL INJECTION - Comoonents
Data display Check condition
Switch state Operation of equipment:
OFF
TSB Revision
Engine
control
module
Equipment state
Lighting switch only: OFF + ON
OFF + ON
Rear
defogger switch OFF + ON
only: OFF + ON
Brake pedal only:
Depressed + Released
Normal display
ON + OFF