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Home >> Mazda >> 2013 >> 5 Grand Touring >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Entertainment Systems >> On-Board Diagnostic [Hands-Free Telephone System) >> DTC: B1134:23, 26:Er85 [Bluetooth SYSTEM (HANDS-FREE TELEPHONE SYSTEM)] >> Diagnostic Procedure

Diagnostic Procedure

Step Inspection Action
1 INSPECT STEERING SWITCH CONNECTOR CONDITION 
  • Switch the ignition OFF (LOCK).
  • Disconnect the negative battery cable.
  • Disconnect the steering switch connector.
  • Inspect the connector for poor connection (such as damaged/pulled-out pins, and corrosion).
  • Is there any malfunction?
Yes Repair or replace the connector or terminal, then go to Step 7.
No Go to the next step.
2 INSPECT CLOCK SPRING CONNECTOR CONDITION 
  • Disconnect the clock spring connector.
  • Inspect the connector for poor connection (such as damaged/pulled-out pins, and corrosion).
  • Is there any malfunction?
Yes Repair or replace the connector or terminal, then go to Step 7.
No Go to the next step.
3 INSPECT Bluetooth UNIT CONNECTOR CONDITION 
  • Disconnect the Bluetooth unit connector.
  • Inspect the connector for poor connection (such as damaged/pulled-out pins, and corrosion).
  • Is there any malfunction?
Yes Repair or replace the connector or terminal, then go to Step 7.
No Go to the next step.
4 INSPECT STEERING SWITCH  Yes Replace the steering switch, then go to Step 7.
(See STEERING SWITCH REMOVAL/INSTALLATION .)
No Go to the next step.
5 INSPECT CLOCK SPRING  Yes Replace the crock spring, then go to Step 7.
(See CLOCK SPRING REMOVAL/INSTALLATION .)
No Go to the next step.
6 INSPECT STEERING SWITCH INPUT CIRCUIT FOR SHORT TO GROUND 
  • Make sure reconnect the disconnected connectors.
  • Inspect for continuity between the following terminals (wiring harness-side) and body ground:
    • Bluetooth unit terminal F
  • Is there continuity?
Yes Repair or replace the wiring harness for a possible short to ground, then go to the next step.
No Go to the next step.
7 VERIFY TROUBLESHOOTING COMPLETED  Yes Replace the Bluetooth unit, then go to the next step.
(See BLUETOOTH UNIT REMOVAL/INSTALLATION .)
No Go to the next step.
8 VERIFY THAT NO OTHER DTCs ARE RECORDED 
  • Are any DTCs present?
Yes Go to the applicable DTC inspection.
(See DTC TABLE [BLUETOOTH SYSTEM (HANDS-FREE TELEPHONE (HF/TEL) SYSTEM)] .)
No DTC troubleshooting completed.