TM 5-3805-292-23
0006
ELECTRICAL TROUBLESHOOTING - EC007 SYSTEM OVER-VOLTAGE/UNDER-VOLTAGE
0006
Run engine at high idle
(TM 5-3805-292-10).
Voltage above
Measure voltage between single-
16.4V?
point distribution block (WP 0160)
and ground.
YES
Replace alternator (WP 0011).
NO
Run engine at high idle
(TM 5-3805-292-10).
Voltage below
Measure voltage between single-
Stop.
NO
11.6V?
point distribution block (WP 0160)
and ground.
YES
Check battery charge condition
Battery fully
Recharge battery.
NO
(TM 9-6140-200-14).
charged?
YES
Load test battery (TM 9-6140-
Battery passed
Replace battery (WP 0141).
NO
200-14).
load test?
YES
Inspect all battery cables (WP
0143), alternator (WP 0011), and
Tighten, repair or replace cable in question
Okay?
single-point distribution block
NO
connections (WP 0160) for
looseness or damage.
YES
Disconnect instrument panel (IP)
Measure resistance between
single-point distribution block,
Perform Open Harness Test for circuit 120
less than 5
circuit 120A (R) harness side, and
NO
and 313 (WP 0173).
Ohms?
IP connector C23-3, circuit 313G
(T) harness side (WP 0175,
19. Miscellaneous Circuits).
YES
O
CONTINUED
