LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Mazda >> 2021 >> CX-3 FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 41 (Body Control System (BCM)) >> Body Control Module (BCM) Inspection >> Notes
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Body Control Module (BCM) Inspection: Notes

WARNING: This page is about a different car, the 2016 Mazda CX-3. However, it is still accessible from the selected car via links, so may be relevant.
  1. Remove the front scuff plate. (LH) (See FRONT SCUFF PLATE REMOVAL/INSTALLATION .)
  2. Remove the front side trim. (LH) (See FRONT SIDE TRIM REMOVAL/INSTALLATION .)
  3. Remove the driver-side lower panel. (See DRIVER-SIDE LOWER PANEL REMOVAL/INSTALLATION .)
  4. Remove the auto leveling control module (with headlight auto leveling system). (See DRIVER-SIDE LOWER PANEL REMOVAL/INSTALLATION .)
  5. Verify that the voltages of each of the terminals are as indicated in the terminal voltage table (reference). (See Terminal Voltage Table (Reference) .)
    • If the voltage is not as specified in the terminal voltage table (reference), inspect the parts under Inspection item(s) and related wiring harnesses.
      • If the system does not work normally even though the inspection items are normal, identify the malfunctioning location according to the directions in [DIAGNOSTIC SYSTEM] and [SYMPTOM TROUBLESHOOTING] then perform repairs.
      Fig 1: Identifying Body Control Module Wiring Harness Side Connector
      G10915368Courtesy of MAZDA MOTORS CORP.
scientia non olet · About LEMON Manuals