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Home >> Acura >> 1994 >> Vigor GS, Automatic >> Repair and Diagnosis >> Brakes >> Traction Control >> Anti-Lock Brake System >> Trouble Codes >> Code 1-4: Pressure Switch Circuit

Code 1-4: Pressure Switch Circuit

  1. Using ABS "T" wrench, bleed high pressure fluid from maintenance bleeder. See RELIEVING SYSTEM PRESSURE under BLEEDING BRAKE SYSTEM. Disconnect 2-pin connector from pressure switch. Check continuity between pressure switch terminals. If continuity does not exist, go to next step. If continuity exists, pressure switch is defective. Replace pump assembly.
  2. Check continuity between Yellow wire terminal of pressure switch harness connector and ground. If continuity exists, repair shorted Yellow wire between pressure switch and control unit. If continuity does not exist, check for loose control unit connectors. If connectors are okay, install a known-good control unit and retest.
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