Chart F Tech 1 Cannot Communicate With SRS

CIRCUIT DESCRIPTION
When system voltage is applied to the center sensor assembly, it will perform the "Primary Check" followed by the "Constant Check." When a fault is detected, the center sensor assembly will Store a DTC and illuminate the "AIR BAG" indicator. When a DTC is stored, the safety circuit (inside the center sensor assembly) will open, preventing [1][2]SRS operation. All faults must be repaired and all DTCs must he cleared before the safety circuit closes, allowing the SRS to function normally.

TEST DESCRIPTION:
Number(s) below refer to circled number(s) on the diagnostic chart.
1. An improper connection to the Data Link Connector (DLC) will prevent communication from being established.
2. This test confirms proper center sensor assembly operation.
3. This test determines whether the fault is due to an open in the AD CKT or junction block 1.