DTC DETECTION LOGIC 
DTC CONFIRMATION PROCEDURE
1.PERFORM DTC CONFIRMATION PROCEDURE
1. Turn ignition switch ON.
2. Check DTC in Self Diagnostic Result mode of BCM using CONSULT.
Is DTC detected?
YES >> Go to SEC "Diagnosis Procedure".
NO >> Inspection End.
1.PERFORM INITIALIZATION
Perform initialization of BCM and registration of all Intelligent Keys using CONSULT.
Can the system be initialized and can the engine be started with registered Intelligent Key?
YES >> Inspection End.
NO >> GO TO 2.
2.CHECK SELF-DIAGNOSIS RESULT
1. Select "Self Diagnostic Result" mode of "BCM" using CONSULT.
2. Erase DTC.
3. Perform DTC CONFIRMATION PROCEDURE for DTC B2192. Refer to SEC "DTC Logic".
Is DTC detected?
YES >> GO TO 3.
NO >> Inspection End
3.REPLACE BCM
1. Replace BCM. Refer to BCS "Removal and Installation".
2. Perform initialization of BCM and registration of all Intelligent Keys using CONSULT.
Can the system be initialized and can the engine be started with registered Intelligent Key?
YES >> Inspection End.
NO >> GO TO 4.
4.REPLACE ECM
1. Replace ECM.
Refer to EC "Removal and Installation".
2. Perform "ADDITIONAL SERVICE WHEN REPLACING ECM".
Refer to EC "Work Procedure".
>> Inspection End.
Mainshaft and gear
Exploded View
1. Mainshaft front bearing 2. Mainshaft 3. 1st main gear
4. 1st inner baulk ring 5. 1st synchronizer cone 6. 1st outer baulk ring
7. 1st-2nd synchronizer hub 8. 1st-2nd coupling sleeve 9. Spring
10. Insert key 11. 2nd outer baulk ring 12. 2nd synchronizer cone
13. 2nd inner b ...
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 ...