Removal and Installation
1. Release the lock knob at the back of the Intelligent Key and remove the mechanical key.
2. Insert a suitable tool (A) wrapped with a cloth into the slit of the corner and twist it to separate the upper part from the lower part.
CAUTION:

3. Replace the battery with new one.
Battery replacement :Coin-type lithium battery (CR2025)

4. Align the tips of the upper and lower parts, and then push them together until it is securely closed.
CAUTION:
WITHOUT INTELLIGENT KEY SYSTEM
Transaxle
Transaxle : cross-sectional view
1. Converter housing 2. Oil pump 3. Low clutch
4. Rear planetary gear 5. Low & reverse brake 6. Front planetary gear
7. Low one-way clutch 8. High clutch 9. Reverse clutch
10. 2-4 brake band (Brake band) 11. Band servo piston 12. Side cover
13. Output ...
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 ...