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Home >> Mitsubishi >> 2002 >> Montero XLS >> Repair and Diagnosis >> Brakes >> Mechanical - Hydraulic >> Hydraulic Brake Booster >> System Testing >> Test 4: Buzzer Does Not Turn Off

Test 4: Buzzer Does Not Turn Off

  1. Disconnect ABS-ECU connector E-106. See Figure . If buzzer turns off, replace ABS-ECU. See ABS ELECTRONIC CONTROL UNIT under REMOVAL & INSTALLATION in ANTI-LOCK - MONTERO article. Go to step  4 . If buzzer does not turn off, go to next step.
  2. Inspect ABS-ECU connector E-106 and Hydraulic Brake Booster (HBB) buzzer connector E-107 for corroded or damaged terminals. Repair connector if necessary, then go to step  4 . If connectors are okay, go to next step.
  3. Inspect Red/Blue wire between ABS-ECU and HBB buzzer. Repair wire if necessary, then go to next step. If wire is okay, and problem persists, replace HBB buzzer. See BUZZER  under REMOVAL & INSTALLATION. Go to next step.
  4. Turn ignition switch to OFF position. Connect Scan Tool (MB991502) to Data Link Connector (DLC). Turn ignition switch to ON position. Perform BUZZER ACTUATOR TEST. If buzzer sounds for three seconds, repair is successful. If buzzer does not sound for three seconds, go to step  1 .
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