V3 Verify ECU Ground

- Key OFF.

- Inspect ground eyelet at left radiator support for excessive dirt, corrosion, or looseness. Clean and tighten as necessary.

- Check for continuity between Pin 1 and the ground eyelet at left radiator support.

- Check for continuity between Pin 14 and the ground stud at left radiator support.

- Is there continuity at both pins?

YES -- Go to V4. V4 Verify Diagnostic Line

NO -- Service open circuit in ground between anti-lock brake control module harness connector and ground eyelet. Go to PC3. PC3