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Hydraulic Modulator: Removal

  1. Disconnect negative battery cable. Remove air intake duct. Disconnect canister purge line at canister and position aside. Remove cover from hydraulic modulator. See Fig 1.
  2. Unlock tab and remove wiring harness connector from hydraulic modulator. Remove ground wire from hydraulic modulator. Note location of hydraulic modulator brake lines; remove lines. Remove nuts and hydraulic modulator from bracket.
Fig 1: Removing Hydraulic Modulator
G91E11290Courtesy of GENERAL MOTORS CORP.