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Rear Body Control Module (RBCM) Inspection: Notes

WARNING: This page is about a different car, the 2018 Mazda 6. However, it is still accessible from the selected car via links, so may be relevant.
  1. Disconnect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION .)
  2. Lower the rear seat back.
  3. Remove the following parts:
    1. Rear scuff plate (See REAR SCUFF PLATE REMOVAL/INSTALLATION .)
    2. Rear seat cushion (See REAR SEAT CUSHION REMOVAL/INSTALLATION .)
    3. Rear seat side back (See REAR SEAT SIDE BACK REMOVAL/INSTALLATION .)
    4. Tire house trim (See TIRE HOUSE TRIM REMOVAL/INSTALLATION .)
    5. C-pillar trim (See C-PILLAR TRIM REMOVAL/INSTALLATION .)
    6. High-mount brake light (See HIGH-MOUNT BRAKE LIGHT REMOVAL/INSTALLATION .)
    7. Rear package trim (See REAR PACKAGE TRIM REMOVAL/INSTALLATION .)
  4. Remove the rear body control module (RBCM) cover. (See REAR BODY CONTROL MODULE (RBCM) REMOVAL/INSTALLATION .)
  5. Remove the rear body control module (RBCM) from the body with the connector connected. (See REAR BODY CONTROL MODULE (RBCM) REMOVAL/INSTALLATION .)
  6. Connect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION .)
  7. Verify that the voltages of each of the terminals are as indicated in the Terminal Voltage Table (Reference).
    • If the voltage is not as indicated in the table, inspect the parts under Inspection item(s).
      • If the system does not launch normally even though inspection items are normal, specify the location of the malfunction based on the instructions from the on-board diagnostic system and the symptom troubleshooting, and perform repairs.
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