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Home >> Mazda >> 2021 >> 6 Signature >> Repair and Diagnosis >> Accessories & Equipment >> Communication Devices >> Body Control System >> Rear Body Control Module (RBCM) Inspection >> Notes

Rear Body Control Module (RBCM) Inspection: Notes

  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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