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17-86 ELECTRICAL SYSTEM
Switches
Brake Light Switch Adjustment
•
Refer to the Brake Light Switch Inspection and Adjust-
ment in the Periodic Maintenance chapter.
Radiator Fan Switch Inspection
•
Remove:
Radiator Fan Switch (see Cooling System chapter)
•
Suspend the f an switch [A] in a container of coolant so that
the temperature sensing projection and threaded portion
are submerged.
•
Suspend an accurate thermometer [B] in the coolant.
NOTE
○
The switch and thermometer must not touch the con-
tainer sides or bottom.
•
Place the container over a source of heat and gradu-
ally raise the temperature of the coolant while stirring the
coolant gently.
•
Using the hand tester, measure the internal resistance
of the switch across the terminals at the temperatures
shown in the table.
If the hand tester does not show the specified values, re-
place the switch.
Radiator Fan Switch Resistance
Rising Temperature:
From OFF to ON at 96 ∼ 100°C (205 ∼ 212°F)
Falling Temperature:
From ON to OFF at 91 ∼ 95°C (196 ∼ 203°F)
ON: Less than 0.5 Ω
OFF: More than 1 MΩ