Bus (+/-) Signals Open/No Response From MSMM

Tests 1 - 3:

Test 4 - 5:

SYMPTOM
BUS ± SIGNALS OPEN OR NO RESPONSE FROM MEMORY SEAT/MIRROR MODULE

POSSIBLE CAUSES
- Attempt to communicate with the BCM
- Fused B+ circuit open
- Ground circuit open
- Open PCI bus circuit
- Memory seat/mirror module