1) Turn the ignition switch to ON in the condition of step 8.
2) Measure the voltage between data link connector and chassis ground.
Connector & terminal
(B40) No. 7 (+) — Chassis ground (−):
QUESTION
Is the voltage less than 1 V?
Yes
No
Repair the harness and connector between each control module and data link connector. (Replace the entire harness if repair is necessary for airbag harness.)