TM 5-5420-234-14&P
4-12. UNIT TROUBLESHOOTING (continued).
3.
ENGINE HIGH IDLE DOES NOT OPERATE (continued).
CAB HIGH IDLE SWITCH TEST
CAUTION
Electrical power must be
shut off from circuit before
continuity can be checked.
Failure to comply with this
caution may result in dam-
age to test equipment or
electrical system.
HEATER
COMPARTMENT
COVER
(1) Turn off engine start switch.
(2) Remove six screws and lift
heater compartment cover for
access to switch terminals.
(3) Move HIGH IDLE switch to ON
position.
(4) Set multimeter to ohms
position.
NOTE
A reading of infinity indi-
cates an open circuit.
(5) Connect multimeter leads to
switch terminals, and check
multimeter for continuity.
TERMINAL 2
HIGH IDLE
SWITCH
TERMINAL 3
4-51
