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Code 1-3, High Pressure Leakage

  1. Check for external fluid leakage at modulator, power unit and high pressure hoses. Replace as necessary. Using ABS "T" Wrench (07HAA-SG00100), bleed high-pressure fluid from maintenance bleeder screw. See RELIEVING ACCUMULATOR/LINE PRESSURE  under BLEEDING BRAKE SYSTEM. Remove pump motor relay. See Figure .
  2. Using jumper wire, connect terminals No. 3 and 8 of pump motor relay connector for about 10 seconds. See Figure , Figure and Figure . Disconnect 2-pin connector from pressure switch. After 30 minutes, check for continuity across pressure switch terminals. If continuity exists, system is okay. If continuity does not exist, solenoid is leaking and defective.
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