DTC: B116A:12, 26:Er82 [Bluetooth SYSTEM (HANDS-FREE TELEPHONE (HF/TEL) SYSTEM)]
id0902g8440100
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DESCRIPTION |
Microphone circuit malfunction |
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DETECTION CONDITION
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Short to power supply in the microphone input circuit
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POSSIBLE CAUSE
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• Connector or terminal malfunction
• Short to power supply in wiring harness between the following terminals:
• Microphone malfunction
• Bluetooth unit malfunction
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Diagnostic Procedure
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Step |
Inspection |
Action |
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1
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INSPECT MICROPHONE CONNECTOR CONDITION
• Switch the ignition to off.
• Disconnect the negative battery cable.
• Disconnect the microphone connector.
• Inspect the connector for poor connection (such as damaged/pulled-out pins, and corrosion).
• Is there any malfunction?
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Yes
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Repair or replace the connector or terminal, then go to Step 4.
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No
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Go to the next step.
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2
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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?
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Yes
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Repair or replace the connector or terminal, then go to Step 4.
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No
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Go to the next step.
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3
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INSPECT MICROPHONE INPUT CIRCUIT FOR SHORT TO POWER SUPPLY
• Make sure reconnect the disconnected connectors.
• Reconnect the negative battery cable.
• Switch the ignition to ON.
• Measure the voltage at the following terminals (wiring harness-side):
• Is there any voltage?
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Yes
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Repair or replace the wiring harness for a possible short to power supply, then go to the next step.
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No
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Go to the next step.
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4
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VERIFY TROUBLESHOOTING COMPLETED
• Clear the DTC from the Bluetooth unit memory.
• Perform the Bluetooth unit DTC inspection.
• Is the same DTC present?
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Yes
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Replace the microphone, then go to the next step.
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No
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Go to the Step 6.
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5
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VERIFY TROUBLESHOOTING COMPLETED
• Reconnect the negative battery cable.
• Clear the DTC from the Bluetooth unit memory.
• Perform the Bluetooth unit DTC inspection.
• Is the same DTC present?
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Yes
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Repeat the inspection from Step 1.
• If the malfunction recurs, replace the Bluetooth unit.
Go to the next step.
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No
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Go to the next step.
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6
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VERIFY THAT NO OTHER DTCs ARE RECORDED
• Are any DTCs present?
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Yes
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Go to the applicable DTC inspection.
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No
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DTC troubleshooting completed.
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