Mazda 323 1988 Workshop Manual page 913

15
CLUSTER SWITCH
Ground
INSPECTION
Check for continuity between the terminals by using
a circuit tester or ohmmeter.
Rear Wiper and Washer Switch
-1
M: Indicates continuity
Rear Defroster Switch
WI
M: Indicates continuity
Panel Light Control Switch
Connect the 12V probe to the "b" terminal and the
ground to the "a" terminal.
Check that the "c" terminal voltage to the ground
changes with the turning angle of the control knob.
Control knob Minimum - Maximum
Voltage OV c* 12V
Caution
a) Do not misconnect the electrical source to
the terminals.
b) Never supply 12V to the "c" terminal. (Con-
troller will burn out Instantly.)
15-18