DTC: B116A:12, 26:Er82 [Bluetooth SYSTEM (HANDS-FREE TELEPHONE (HF/TEL) SYSTEM)]

id0902g8440100

Description

Open circuit in microphone circuit

Detection condition

Short to power supply detected in microphone input circuit

Fail-safe function

—

Possible cause

•  Connector or terminal malfunction

•  Open circuit in wiring harness between Bluetooth unit terminal A and microphone terminal A

•  Microphone malfunction

•  Bluetooth unit malfunction

Description	Open circuit in microphone circuit
Detection condition	Short to power supply detected in microphone input circuit
Fail-safe function	—
Possible cause	• Connector or terminal malfunction • Open circuit in wiring harness between Bluetooth unit terminal A and microphone terminal A • Microphone malfunction • Bluetooth unit malfunction

Diagnostic Procedure

Step	Inspection		Action
1	INSPECT MICROPHONE CONNECTOR STATUS • Switch the ignition off (LOCK). • Disconnect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-G 2.0, SKYACTIV-G 2.5].) (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-G 2.0, SKYACTIV-G 2.5 (WITHOUT i-stop)].) (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-D 2.2].) • Disconnect the microphone connector. • Inspect the connector engagement and connection condition and inspect the terminals for damage, deformation, corrosion, or disconnection. • Is there any malfunctioning part?	Yes	Repair or replace the connector, then go to Step 4.
1		No	Go to the next step.
2	INSPECT BLUETOOTH UNIT CONDITION • Disconnect the Bluetooth unit connector. • Inspect the connector engagement and connection condition and inspect the terminals for damage, deformation, corrosion, or disconnection. • Is there any malfunctioning part?	Yes	Repair or replace the connector, then go to Step 4.
2		No	Go to the next step.
3	INSPECT FOR SHORT TO POWER SUPPLY IN MICROPHONE INPUT CIRCUIT • Reconnect all the disconnected connectors. • Connect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-G 2.0, SKYACTIV-G 2.5].) (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-G 2.0, SKYACTIV-G 2.5 (WITHOUT i-stop)].) (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-D 2.2].) • Switch the ignition ON (engine off). • Measure the voltage of Bluetooth unit terminal A (vehicle wiring harness side). • Is the voltage B+?	Yes	Repair or replace the wiring harness which has a short to the power supply, then go to the next step.
3		No	Go to the next step.
4	PERFORM DTC INSPECTION AND VERIFY IF MALFUNCTIONING PART IS MICROPHONE OR BLUETOOTH UNIT • Perform an inspection of the Bluetooth unit DTCs. (See DTC INSPECTION [Bluetooth SYSTEM (HANDS-FREE TELEPHONE (HF/TEL) SYSTEM)].) • Is the same DTC displayed?	Yes	Replace the microphone, then go to the next step. (See MICROPHONE REMOVAL/INSTALLATION.)
4		No	Go to Step 6.
5	VERIFY THAT REPAIRS HAVE BEEN COMPLETED • Perform an inspection of the Bluetooth unit DTCs. (See DTC INSPECTION [Bluetooth SYSTEM (HANDS-FREE TELEPHONE (HF/TEL) SYSTEM)].) • Is the same DTC displayed?	Yes	Replace the Bluetooth unit, then go to the next step. (See Bluetooth UNIT REMOVAL/INSTALLATION.)
5		No	Go to the next step.
6	VERIFY IF OTHER DTCs DISPLAYED • Are any other DTCs displayed?	Yes	Repair the malfunctioning part according to the applicable DTC troubleshooting. (See DTC TABLE [Bluetooth SYSTEM (HANDS-FREE TELEPHONE (HF/TEL) SYSTEM)].)
6		No	DTC troubleshooting completed.