Diagnosis Procedure
Regarding Wiring Diagram information, refer to AV "Wiring Diagram".
1.CHECK STEERING WHEEL AUDIO CONTROL SWITCH RESISTANCE
1. Turn ignition switch OFF.
2. Disconnect combination switch connector M88.
3. Check resistance between the terminals of combination switch connector
M88.
Is the inspection result normal?
YES >> GO TO 2.
NO >> Replace steering switches. Refer to AV "Removal and Installation".
2.CHECK HARNESS BETWEEN BLUETOOTH CONTROL UNIT AND COMBINATION SWITCH
1. Disconnect Bluetooth control unit connector B33 and combination switch connector M30.
2. Check continuity between Bluetooth control unit connector B33 and
combination switch connector M30.
3. Check continuity between Bluetooth control unit connector B33 and ground.
Is the inspection result normal?
YES >> GO TO 3.
NO >> Repair or replace harness or connectors.
3.CHECK COMBINATION SWITCH
Check continuity between combination switch connectors M88 and M30.
Is the inspection result normal?
YES >> GO TO 4.
NO >> Replace spiral cable. Refer to SR "Removal and Installation".
4.CHECK HARNESS BETWEEN BLUETOOTH CONTROL UNIT AND AUDIO UNIT
1. Disconnect audio unit connector M44.
2. Check continuity between Bluetooth control unit connector B33 and audio
unit connector M44.
3. Check continuity between Bluetooth control unit connector B33 and ground.
Is the inspection result normal?
YES >> Replace audio unit. Refer to AV "Removal and Installation".
NO >> Repair or replace harness or connectors.
SYMPTOM DIAGNOSIS
Microphone signal circuitDiagnosis Procedure Regarding Wiring Diagram information, refer to AV"Wiring Diagram". 1.CHECK HARNESS BETWEEN BLUETOOTH CONTROL UNIT AND MICROPHONE 1. Turn ignition switch OFF. 2. Disco ...

Symptom Table RELATED TO AUDIO RELATED TO HANDS-FREE PHONE Before performing diagnosis, confirm that the cellular phone being used by the customer is compatible with the vehicl ...
Diagnosis and repair work flow
Work Flow
NOTE:
The Signal Tech II Tool (J-50190) can be used to perform the following
functions. Refer to the Signal Tech II User Guide for additional information.
Activate and display TPMS transmitter IDs
Display tire pressure reported by the TPMS transmitter
Read TPMS DTCs
Register ...
Low tire pressure warning lamp
does not turn off
Diagnosis Procedure
1.INSPECT BCM CONNECTOR
Turn ignition switch OFF.
Disconnect BCM connectors.
Check terminals for damage or loose connections.
Is the inspection result normal?
YES >> GO TO 2.
NO >> Repair or replace damaged parts.
2.BCM POWER SUPPLY AND GROUND CIRCUITS ...