Work Flow
OVERALL SEQUENCE

DETAILED FLOW
1.GET INFORMATION FOR SYMPTOM
Get detailed information from the customer about the symptom (the condition and the environment when the incident/malfunction occurred).
>> GO TO 2.
2.CONFIRM THE SYMPTOM
Try to confirm the symptom described by the customer. Verify relation between the symptom and the condition when the symptom is detected.
>> GO TO 3.
3.PERFORM SELF DIAGNOSTIC RESULT
1. Turn ignition switch ON and wait for 2 seconds or more.
2. Perform Self Diagnostic Result for MULTI AV.
Are any DTCs displayed?
YES >> Refer to AV "DTC Index".
NO >> GO TO 4.
4.PERFORM SYMPTOM DIAGNOSIS
Refer to AV "Symptom Table".
>> GO TO 5
5.FINAL CHECK
Refer to symptom described by the customer in step 1.
Is the symptom still present?
YES >> GO TO 2
NO >> Inspection End.
Diagnosis system (AV Control unit)Description The AV control unit on board diagnosis performs the functions listed in the table below: Perform CONSULT diagnosis if the AV control unit on board diagnosis does not start or t ...
Lock-up control
Lock-up control : system diagram
Lock-up control : system description
The torque converter clutch piston in the torque converter is engaged to
eliminate torque converter slip to
increase power transmission efficiency.
The torque converter clutch control valve operation is controlle ...
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 ...