Electrical Load Switch - Mitsubishi 3000GT 1991 Service Manual

13-86
FUEL SYSTEM

ELECTRICAL LOAD SWITCH

OPERATION
The electrical load switch inputs ON/OFF state of the switch of equipment that consumes much power
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during idling, namely, equipment with a large electrical load, to the engine control unit. Based on this
signal, the engine control unit controls the idle-speed control servo.
When the switch of equipment with a large electrical load is turned ON, the battery voltage is applied to
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the engine control unit to indicate that the equipment switch is turned ON.
INSPECTION
Using Multi-use Tester
Function tem No. Data display
Data reading 33
Check condition
Switch
state
Defog.
stop
light
light
relay
relay
switch
Engine
control
unit
Equipment state
OFF + ON
,
Normal display