No Response From Central Timer Module

Test 1 - 4:

Test 5 - 6:

SYMPTOM
NO RESPONSE FROM CENTRAL TIMER MODULE

POSSIBLE CAUSES
- Relay center fuse #15 open
- CTM NO response
- CTM ground open
- Open fused B(+) circuit to CTM
- CCD Bus (+) open to CTM
- CCD Bus (-) open to CTM