Car Problem Reports

Subaru Legacy Failure in ABS causes pump to run continuously and wear down battery

Subaru Legacy Problem
16 Reports
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Model Years Affected: 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998

Average Mileage: 189,250 mi (135,000 mi - 227,000 mi)


A failure in the anti-lock brake system (ABS) causes the ABS pump to continuously run, which will eventually wear down the battery. An improved ABS relay is available to solve the problem.

  • , , 205,000 mi

    I just figured this out by reading THIS, but I inadvertently fixed the issue when I unplugged the ABS unit because it was pumping air into the brake lines and leaking.

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  •  Rookie

    At approximately 190000 miles my 1994 Subaru Legacy 2.2L Sedan began "eating" batteries and then alternators. This resulted in about four warranty replacements of each over a period of four years.

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