TM 9-2320-387-24-l
INSTRUMENTS CIRCUIT
KNOWN INFO
WIRE 27C OK
WIRE 27D OK
CIRCUIT BREAKER
1 OK
POSSIBLE PROBLEMS
WIRE 400D
SWITCH
DIAGNOSTIC FLOWCHART
TEST OPTIONS
IS THERE CONTINUITY FROM
WIRE 400D AT THE HEATER
MOTOR TO WIRE 400D AT THE
HEATER FAN SWITCH?
1. STEXE-R
TEST 91
(Page 2-508)
2. MULTIMETER
REASON FOR QUESTION
Continuity indicates that the wiring
is OK, and the switch must be the
REPAIR/REPLACE
WIRE 400D. RETURN
REPLACE THE HEATER FAN
SWITCH. RECONNECT ALL WIRES.
RETURN TO P4, PAGE 2-364.
1
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