Diagnosis Procedure
Regarding Wiring Diagram information, refer to AV "Wiring Diagram".
1.CHECK USB INTERFACE HARNESS CONTINUITY
1. Turn ignition switch OFF.
2. Disconnect audio unit connector M48 and USB interface connector M72.
3. Check continuity between audio unit connector M48 and USB interface
connector M72.
4. Check continuity between audio unit connector M48 and ground.
Is the inspection result normal?
YES >> Replace the USB interface. Refer to AV "Removal and Installation".
NO >> Repair or replace harness or connectors.
SYMPTOM DIAGNOSIS
Steering switchDiagnosis 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 ...

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 vehicle. It i ...
Shift change control
Shift change control : system diagram
Shift change control : system description
The clutch is controlled with the optimum timing and oil pressure by the
engine speed, engine torque information,
etc.
Shift Change System Diagram
*1: Full phase real-time feedback control monitors m ...
U0073 Communication bus a off
DTC Logic
DTC
Trouble diagnosis name
DTC detecting condition
Possible causes
U0073
Control Module Communication
Bus "A" Off
When the ignition switch is ON,
TCM detects a bus-off error
continuously for 2 seconds or
more.
Harness or connector
(CA ...