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Brake Switch Signal

WARNING: This page is about a different car, the 1994 Acura Legend. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ensure stoplights operate properly. Connect ECM Test Harness (07LAJ-PT3010A ) to ECM main harness. DO NOT  connect test harness to ECM. Measure voltage between test harness terminals D2 (positive) and A26 (negative). See Figure .
  2. Depress brake pedal. If battery voltage is present, switch is okay. If battery voltage is not present, repair open in Green/White wire and ECM terminal D2.
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