TM 9-2320-387-24-l
INSTRUMENTS C,RCUI;
A@
I-
KNOWN INFO
I
TEST OPT,ONS DIAGNOSTIC
FLOWCHART
I
DISCONNECT WIRE 296 FROM
CIRCUIT BREAKER 2. WITH THE
ROTARY SWITCH IN THE OFF
POSITION, DO YOU HAVE
0 VOLTAGE AT WIRE 29B?
1. STEXE-R
TEST 89
(Page 2-506)
2. MULTIMETER
SOME GAUGES AND
LAMPS HAVE
POWER WHEN THEY
SHOULDN’T
POSSIBLE PROBLEMS
1
REASON FOR QUESTION
Voltage here indicates a short
circuit to power.
ROTARY SWITCH
WIRING
ROTARY SWITCH OK
POSSIBLE PROBLEMS
1 TEST
I
OPTIONS
1. STE/ICE-R TEST 89
(Page 2-506)
2. MULTIMETER
DISCONNECT WIRE 29D FROM
CIRCUIT BREAKER 2. WITH THE
ROTARY SWITCH IN THE OFF
POSITION, DO YOU HAVE
0 VOLTAGE AT WIRE 29D?
REASON FOR QUESTION
Voltage here indicates a short
circuit to power.
WIRING
A3 I
1 TEST OPTIONS
KNOWN INFO
CHECK CONTINUITY FROM ALL
1. STUICE-R TEST 91
GAUGE GROUND TERMINALS TO
(Page 2-508)
ENGINE GROUND (WIRES 58E-H).
2. MULTIMETER
DO YOU HAVE CONTINUITY?
REASON FOR QUESTION
A good ground circuit is necessary
for proper gauge operation.
REPAIR 58E-H
OR REPLACE
NO SHORTS TO POWER
POSSIBLE
PROBLEMS
WIRING
2-314
