TM 9-2320-387-24-l
INSTRUMENTS CIRCUIT
KNOWN INFO
ENGINE STARTS AND
RUNS SO THERE IS
POWER TO THE
ROTARY SWITCH
POSSIBLE
PROBLEMS
CIRCUIT BREAKER 2
GAUGES
LAMPS
SENDING UNITS
WIRING
KNOWN INFO
POWER AVAltABLE
TO
CIRCUIT BREAKER
POSSIBLE
PROBLEMS
CIRCUIT BREAKER 2
GAUGES
LAMPS
SENDING UNITS
WIRING
KNOWN INFO
CIRCUIT BREAKER 2 OK
POSSIBLE
PROBLEMS
GAUGES
LAMPS
SENDING UNITS
WIRING
DIAGNOSTIC FLOWCHART
_
w
I TESTOPT~ONS
DISCONNECT WIRE 29B FROM
CIRCUIT BREAKER 2. WITH
ROTARY SWITCH IN THE RUN
POSITION, DO YOU HAVE
BATTERY VOLTAGE AT WIRE
29B?
1. St-E/ICE-R TEST 89
(Page 2-508)
2. MULTIMETER
REASON FOR QUESTION
Voltage here indicates that the
wiring to the circuit breaker is OK.
RECONNECT WIRE 298. DIS-
CONNECT WIRE 29D FROM
CIRCUIT BREAKER 2. WITH
ROTARY SWITCH IN THE RUN
POSITION, DO YOU HAVE
BATTERY VOLTAGE AT CIRCUIT
BREAKER 2?
’ OPTIONS
1. STUICE-R
TEST 89
(Page 2-808)
2. MULTIMETER
REASON FOR QUESTION
If you have voltage here, the
circuit breaker is OK.
RECONNECT WIRE 29D AT
CIRCUIT BREAKER 2. WITH
ROTARY SWITCH IN THE RUN
POSITON, CHECK FOR BAlTERY
VOLTAGE AT THE GAUGE WIRES
27G, 27H, 27J, AND 567A. DO YOU
HAVE BAlTERY VOLTAGE AT ANY
OF THESE WIRES?
OR REPLACE
1. STE/ICE-R TEST 89
(Page 2-808)
2. MULTIMETER
REASON FOR QUESTION
If you have voltage here,
any faults will be in the
individual gauge circuits.
2-316
