Test 21 - Audible Warning Output Short Circuit

Test LB14-15 (-) for short circuit to ground.

If not ground, fault in audible warning module.

If ground, disconnect LB14 (-) C.P.U.

Test LB14-15 (-) female for short circuit to ground.

If not ground, fault is short circuit in C.P.U.

If ground, disconnect LB58 (-) and repeat short circuit test.

If not ground, fault is short circuit in audible warning module.

If ground, fault is short circuit in bulkhead harness.