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Home >> Mazda >> 1994 >> Navajo DX, RWD >> Repair and Diagnosis >> Brakes >> Traction Control >> Anti-Lock Brake System - 4-Wheel >> Bleeding Brake System >> Pressure Bleeding

Pressure Bleeding

CAUTION: Bleed anti-lock brake system using the following procedure. If this procedure is not followed, air will be trapped in the Hydraulic Control Unit (HCU), resulting in a spongy pedal.
CAUTION: DO NOT allow reservoir to run dry during brake bleeding procedure. Brake fluid will damage painted surfaces. If brake fluid is spilled, immediately clean surface. Use only DOT 3 brake fluid and DO NOT mix with any other types.
  1. Turn ignition off. Disconnect ECU 40-pin connector. ECU is located in engine compartment, on left front inner fender panel next to carbon canister. Install ABS Bleeder Box (49-UN01-060) and Jumper Cable (49-UN01-061). Set BLEED/HARNESS switch to BLEED position. Set ignition switch to ON position. Red OFF indicator light will glow.
  2. Press MOTOR button on bleeder box. Pump motor will run. Red indicator light will go out and Green ON indicator will glow. Pump will run for 60 seconds. If pump motor needs to be turned off before 60 seconds has elapsed, press ABORT button.
  3. After pump motor runs for 20 seconds, press and hold VALVE button for 20 seconds, then release. Pump will continue to run for an additional 20 seconds. Bleed brakes in conventional manner using the following sequence:
    • Right Rear
    • Left Front
    • Left Rear
    • Right Front
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