DTC: B1134:23, 26:Er85, DEVICE CORD 26/ERROR CORD 85 [Bluetooth SYSTEM (HANDS-FREE TELEPHONE (HF/TEL) SYSTEM)]

id0902g8444000

DESCRIPTION

Steering switch circuit malfunction

DETECTION CONDITION

Steering switch input signal is detected continuously for 2 min or more

POSSIBLE CAUSE

•  Connector or terminal malfunction

•  Steering switch malfunction

•  Clock spring malfunction

•  Short to ground in wiring harness between the following terminals:

―  Clock spring terminal 4M and Bluetooth unit terminal F

•  Bluetooth unit malfunction

DESCRIPTION	Steering switch circuit malfunction
DETECTION CONDITION	Steering switch input signal is detected continuously for 2 min or more
POSSIBLE CAUSE	• Connector or terminal malfunction • Steering switch malfunction • Clock spring malfunction • Short to ground in wiring harness between the following terminals: ― Clock spring terminal 4M and Bluetooth unit terminal F • Bluetooth unit malfunction

Diagnostic Procedure

Step	Inspection		Action
1	INSPECT STEERING SWITCH CONNECTOR CONDITION • Switch the ignition to off. • 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.
1		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.
2		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.
3		No	Go to the next step.
4	INSPECT STEERING SWITCH • Inspect the steering switch. (See STEERING SWITCH INSPECTION.) • Is there any malfunction?	Yes	Replace the steering switch, then go to Step 7. (See STEERING SWITCH REMOVAL/INSTALLATION.)
4		No	Go to the next step.
5	INSPECT CLOCK SPRING • Inspect the crock spring. (See CLOCK SPRING INSPECTION.) • Is there any malfunction?	Yes	Replace the crock spring, then go to Step 7. (See CLOCK SPRING REMOVAL/INSTALLATION.)
5		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.
6		No	Go to the next step.
7	VERIFY TROUBLESHOOTING COMPLETED • Switch the ignition to off. • Reconnect the negative battery cable. • Clear the DTC from the Bluetooth unit memory. (See CLEARING DTC [Bluetooth SYSTEM (HANDS-FREE TELEPHONE (HF/TEL) SYSTEM)].) • Perform the Bluetooth unit DTC inspection. (See DTC INSPECTION [Bluetooth SYSTEM (HANDS-FREE TELEPHONE (HF/TEL) SYSTEM)].) • Is the same DTC present?	Yes	Replace the Bluetooth unit, then go to the next step. (See Bluetooth UNIT REMOVAL/INSTALLATION.)
7		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)].)
8		No	DTC troubleshooting completed.