Subaru Legacy Problem Report

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

(16 reports)

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.

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. -
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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