Toyota Corolla Alternator Brush Wear — Intermittent Charging
Toyota Corolla alternators typically last 150,000-200,000 miles but the brushes wear first, causing intermittent charging. The voltage dips at idle before failing completely. Brush replacement costs £50-100; full alternator replacement £150-300.
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No commonly reported misdiagnoses for this fault yet. If you have replaced a part that did not fix this Toyota Corolla 2002 problem, submit a wrong diagnosis report — it helps other drivers avoid the same costly mistake.
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