TM
9-2350-311-20-1
3-3 TROUBLESHOOTING CHART —
CONTINUED
m. ALTERNATOR CIRCUIT (M109A2/M109A3) —
ALTERNATOR FAILS TO CHARGE BATTERIES; GAGE
CONTINUED
INDICATION: NOT CHARGING, UNSTEADY OR
INACCURATE
READING — CONTINUED
CONTINUED FROM STEP C
1.
Reconnect lead 27 to circuit breaker output.
2. Disconnect battery ground leads.
3. Disconnect portable instrument panel wiring
harness from portable instrument panel
disconnect.
4. Place a jumper wire from socket C (lead 459)
to socket P (lead 459B).
5. Place red lead of multimeters in socket A
(lead 27) and black lead to ground.
6. Reconnect battery ground leads.
7. Turn MASTER switch ON and check for
voltage.
8. Turn MASTER switch OFF.
Is voltage present?
Repair or replace lead 27 of driver’s
bulkhead-to-portable instrument panel
wiring harness (para 8-49).
Repair or replace lead 40A of portable
instrument panel wiring harness (para
8-57).
3-158