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With Bluetooth system

WARNING: This page is about a different car, the 2017 Mazda 3. However, it is still accessible from the selected car via links, so may be relevant.
WARNING:
  1. Switch the ignition OFF (LOCK).
  2. Disconnect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION .)
  3. Remove the driver-side air bag module. (See DRIVER-SIDE AIR BAG MODULE REMOVAL [STANDARD DEPLOYMENT CONTROL SYSTEM] .) (See DRIVER-SIDE AIR BAG MODULE INSTALLATION [STANDARD DEPLOYMENT CONTROL SYSTEM] .) (See DRIVER-SIDE AIR BAG MODULE REMOVAL [TWO-STEP DEPLOYMENT CONTROL SYSTEM] .) (See DRIVER-SIDE AIR BAG MODULE INSTALLATION [TWO-STEP DEPLOYMENT CONTROL SYSTEM] .)
  4. Remove the steering wheel. (See STEERING WHEEL AND COLUMN REMOVAL/INSTALLATION .)
  5. Verify that the resistance and continuity between the steering switch terminals is as indicated in the table.
    Fig 1: Steering Switch Circuit Diagram
    G11448833Courtesy of MAZDA MOTORS CORP.
    Fig 2: Steering Switch Terminal Chart
    G11448834Courtesy of MAZDA MOTORS CORP.
    Fig 3: Steering Switch Resistance Chart
    G11448835Courtesy of MAZDA MOTORS CORP.
    Fig 4: Steering Switch Terminal Chart
    G11448836Courtesy of MAZDA MOTORS CORP.
  6. Apply battery positive voltage to steering switch terminal 3F, and connect terminal 3B to ground.
    Fig 5: Applying Battery Positive Voltage To Steering Switch Terminal 3F
    G11448832Courtesy of MAZDA MOTORS CORP.
  7. Verify that the LED illuminates.
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