TM-9-2350-311-20-1

HOWITZER, MEDIUM, SELF-PROPELLED, 155MM; M109A2, M109A3, M109A4 AND M109A5

TECHNICAL MANUAL; UNIT MAINTENANCE MANUAL FOR HULL, POWERPLANT, DRIVE CONTROLS, TRACKS, SUSPENSION, AND ASSOCIATED COMPONENTS

AUGUST 1994

TM-9-2350-311-20-1 - Page 271 of 1275

TM 9-2350-311-20-1

CONTINUED FROM STEP C

D

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 multimeter 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?

I

Repair or replace lead 27 of driver’s

bulkhead-to-portable instrument panel

wiring harness (para 8-49).

I

Repair or replace lead 40A of portable

instrument panel wiring harness (para

8-57).

3-171