Body Control Module (BCM) Inspection: Notes

1. Disconnect the negative battery cable. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION .)
2. Remove the scuff plate (driver's side). (See SCUFF PLATE REMOVAL/INSTALLATION .)
3. Remove the front side trim (driver's side). (See FRONT SIDE TRIM REMOVAL/INSTALLATION .)
4. Remove the BCM. (See BODY CONTROL MODULE (BCM) REMOVAL/INSTALLATION .)
5. Connect the BCM connector.
6. Connect the negative battery cable. (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). (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.

Courtesy of MAZDA MOTORS CORP.