A4 Check Ignition to Anti-Lock Brake Control Module

- Check for continuity between breakout box pin 15 and ignition switch wire 687 (GY/Y).

- Is continuity present?

YES -- Reverify reading at test step A1. A1 Check Power to Anti-Lock Brake Control Module

NO -- Service circuit 687 (GY/Y) or Power Distribution Box Fuse 4 (60 A). Check for shorting cap on 8-pin connector on LH fender apron (by Power Distribution Box). Restore vehicle. Retest system.