Diagnosis Procedure
Regarding Wiring Diagram information, refer to AV "Wiring Diagram".
1.CHECK AUX JACK HARNESS CONTINUITY
1. Turn ignition switch OFF.
2. Disconnect AV control unit connector M71 and AUX in jack connector M76.
3. Check continuity between AV control unit connector M71 and AUX in jack
connector M76.
4. Check continuity between AV control unit connector M71 and ground.
Is the inspection result normal?
YES >> Replace the AUX in jack. Refer to AV "Removal and Installation".
NO >> Repair or replace harness or connectors.
SYMPTOM DIAGNOSIS
USB ConnectorDiagnosis Procedure Regarding Wiring Diagram information, refer to AV "Wiring Diagram". 1.CHECK USB INTERFACE HARNESS CONTINUITY 1. Turn ignition switch OFF. 2. Disconnect AV control uni ...

Symptom Table RELATED TO AUDIO Symptoms Check items Probable malfunction location The disk cannot be removed. AV control unit Malfunction in AV control unit. Refer t ...
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 ...
A/C Indicator
Diagnosis Procedure
Regarding Wiring Diagram information, refer to HAC "Wiring Diagram" or HAC
"Wiring Diagram".
1.CHECK A/C INDICATOR POWER SUPPLY
Turn ignition switch ON.
Check voltage between front air control harness connector and ground.
Is the inspec ...